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Author SHA1 Message Date
Andrew Hsu 77b4dce066 Merge pull request #120 from andrewhsu/check-clean
check if build dir exists before chown
2017-07-13 22:15:52 -07:00
Andrew Hsu 9cb6e86615 check if build dir exists before chown
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
(cherry picked from commit 46dd23f1fc2863741783f0584dad1a42815e5438)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-14 04:51:59 +00:00
Andrew Hsu 4581021c2e Merge pull request #119 from andrewhsu/alpine-image
[17.06] Add reflective alpine images to other components
2017-07-13 17:42:40 -07:00
Andrew Hsu 70709d0056 Merge pull request #101 from andrewhsu/changelog-rc1
update changelog for docker-ce 17.06.1 rc1
2017-07-13 17:42:14 -07:00
Andrew Hsu 54ea1fe30f added fixes addressed in 17.06.1 rc1
From: https://github.com/docker/docker-ce/milestone/2?closed=1

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-14 00:40:15 +00:00
Eli Uriegas 06dcd93778 ALPINE -> ALPINE_IMG
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
(cherry picked from commit ee25bc2379126a75116ce66daffda6c7d3f41d42)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 23:41:46 +00:00
Eli Uriegas 1d2cd8d7ab Add reflective alpine images to other components
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
(cherry picked from commit 0435cef6a945dc1c57b51cb24b36aaf66be8d8cc)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 23:41:46 +00:00
Andrew Hsu c257617b99 Merge pull request #118 from andrewhsu/rc1
bump version to 17.06.1-ce-rc1
2017-07-13 16:03:01 -07:00
Andrew Hsu 06f434c72b Merge pull request #108 from andrewhsu/fix-load-image
[17.06] backport fix "Stop trying to load images on an incompatible OS"
2017-07-13 12:04:27 -07:00
Andrew Hsu 1d1b9ad4db Merge pull request #115 from andrewhsu/set-ping-ver
[17.06] Set ping version even on error
2017-07-13 11:59:16 -07:00
Andrew Hsu ab734f59cc Merge pull request #105 from andrewhsu/backport-doc-fixes
[17.06] backport various docs fixes
2017-07-13 11:54:25 -07:00
Kenfe-Mickaël Laventure b538302e2c Merge pull request #90 from andrewhsu/fix-leak
[17.06] Prevent a goroutine leak when healthcheck gets stopped
2017-07-13 13:58:07 +02:00
Andrew Hsu 021cd82205 import runtime so cherry-pick moby/moby@b9255e4 can work
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 04:26:09 +00:00
Andrew Hsu 3c4292da1e vendor prev git commit 10aa812 into components/cli
Originally from commit titled: Set ping version even on error
which was cherry picked from upstream commit 27ef09a of component engine.

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 04:10:32 +00:00
Brian Goff 10aa812ef5 Set ping version even on error
In some cases a server may return an error on the ping response but
still provide version details. The client should use these values when
available.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 27ef09a46ffeb8ba42548de937b68351009f30ea)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 03:55:49 +00:00
Andrew Hsu 9795a158bd Merge pull request #110 from andrewhsu/fix-swarm-warn
[17.06] backport (cli) If `docker swarm ca` is not called with the `--rotate` flag, warn if other flags are passed
2017-07-12 19:01:59 -07:00
Andrew Hsu fb319d1554 Merge pull request #114 from cyli/re-vendor-swarmkit
[17.06] backport (swarmkit) cluster update and memory issue fixes
2017-07-12 17:34:49 -07:00
Ying Li 3d947e7a2d Fix warning in docker CLI when swarm ca --ca-cert, etc. flags are passed,
and add a test.

Signed-off-by: Ying Li <ying.li@docker.com>
(cherry picked from commit 4615c92f66)

Conflicts:
components/cli/cli/command/swarm/ca_test.go
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-13 00:25:00 +00:00
Andrew Hsu 31875af469 adjust cherry-pick moby/moby@b9255e4 to work without lcow
Because the LCOW support is not part of this codebase, removing the
lines that expect it to be there.

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 22:56:09 +00:00
Andrew Hsu 136b90fbd0 Merge pull request #102 from tiborvass/runtime-spec-fix
[17.06][engine][vendor] forks of containerd + runc + runtime-spec
2017-07-12 15:29:33 -07:00
Ying 9241ec7a1e Bump swarmkit vendor in order to include the following changes:
- https://github.com/docker/swarmkit/pull/2281 - fixes an issue where some cluster updates
  could be missed if a manager receives a catch-up snapshot from another manager
- https://github.com/docker/swarmkit/pull/2300 - fixes a possible memory issue if an
  external CA sends an overlarge response

Signed-off-by: Ying <ying.li@docker.com>
2017-07-12 14:50:21 -07:00
Andrew Hsu aaf863d88a Merge pull request #100 from andrewhsu/fix-build-git
[17.06] Fix handling of remote "git@" notation
2017-07-12 14:43:27 -07:00
Andrew Hsu 2d8beb7256 Merge pull request #95 from andrewhsu/fix-logging
[17.06] Fix stderr logging for journald and syslog
2017-07-12 14:40:48 -07:00
Andrew Hsu 7a50b06fea Merge pull request #99 from andrewhsu/redact
[17.06] middleware: Redact secret data on "secret create"
2017-07-12 14:37:44 -07:00
Andrew Hsu 2e99eed6f1 Merge pull request #89 from tonistiigi/fix-add-remote
[17.06] build: fix add from remote url
2017-07-12 10:38:32 -07:00
Andrew Hsu cb9b544edf Merge pull request #107 from andrewhsu/fix-service-spec
[17.06] backport "Do not add duplicate platform information to service spec"
2017-07-12 10:35:50 -07:00
Kenfe-Mickaël Laventure 1e1c6b20ef Merge pull request #109 from andrewhsu/dont-prune-vol
[17.06] backport (cli) Don't prune volumes on docker system prune
2017-07-12 09:11:43 +02:00
John Stephens dfe4a1d9f2 Stop trying to load images on an incompatible OS
Signed-off-by: John Stephens <johnstep@docker.com>
(cherry picked from commit b9255e4a531d2ad0239481eba2a635f7d48718fb)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 04:33:36 +00:00
Andrew Hsu abfc72adff Merge pull request #92 from andrewhsu/fix-relabel
[17.06] Do not error on relabel when relabel not supported
2017-07-11 21:29:47 -07:00
Andrew Hsu b5f090a4fe Merge pull request #113 from andrewhsu/optimize-dockerfile
[17.06] Remove OSX cross stuff from main Dockerfile
2017-07-11 21:25:42 -07:00
Tibor Vass 2206628703 [engine][vendor] forks of containerd + runc + runtime-spec
This vendors from the docker org:
- containerd to 6e23458c129b551d5c9871e5174f6b1b7f6d1170
- runc to 810190ceaa507aa2727d7ae6f4790c76ec150bd2
- runtime-spec to a45ba0989fc26c695fe166a49c45bb8b7618ab36

This fixes two issues:
- if the container is paused, it now responds properly to SIGKILL
- on buggy kernels such as RHEL7.2, a int64->uint64 conversion bug
  prevented containers to start when memory cgroup was specified.

Signed-off-by: Tibor Vass <tibor@docker.com>
2017-07-12 03:13:56 +00:00
Andrew Hsu 068a4285c6 Merge pull request #106 from andrewhsu/fix-wait-hang
[17.06] Docker wait hangs indefinitely for non-existent container (vendor)
2017-07-11 19:06:58 -07:00
Andrew Hsu f1d6145f7b Merge pull request #104 from andrewhsu/backport-completion-scripts
[17.06] backport various completion script updates
2017-07-11 19:03:29 -07:00
Andrew Hsu 0aba54445b Merge pull request #98 from andrewhsu/fix-log-readers
[17.06] Fix log readers can block writes indefinitely
2017-07-11 19:01:53 -07:00
Andrew Hsu 75ef04b420 Merge pull request #94 from andrewhsu/fix-grpc
[17.06] Limit max backoff delay to 2 seconds for GRPC connection
2017-07-11 18:59:44 -07:00
Brian Goff 5c477f0e07 Remove OSX cross stuff from main Dockerfile
This is no longer needed here. It was required for compiling the CLI
which we no longer do here.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 57f0e0c61982269093eb6d9934656ea70b573938)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 01:52:53 +00:00
Andrew Hsu b2eb1339dc Merge pull request #91 from andrewhsu/fix-plugin
[17.06] Make plugin removes more resilient to failure
2017-07-11 18:37:42 -07:00
Brian Goff 4ff004bf0d Do not error on relabel when relabel not supported
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit ebfdfc5768b74e0a52875cf76a0576bfcd66445c)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 01:17:55 +00:00
Brian Goff b0efd8dda5 Do not error on relabel when relabel not supported
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit ebfdfc5768b74e0a52875cf76a0576bfcd66445c)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 01:16:00 +00:00
Harald Albers 8cf887b304 Remove bash completion for service update --network
The `--network` option is only available for `docker service create`.

Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit e7e77b5e65)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:48:22 +00:00
Harald Albers 5b4a4cc549 Fix bash completion for swarm init|join --data-path-addr
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit fa4dc8820a)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 8e17167c78 Add bash completion for swarm ca
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 5bd00a563e)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers fd95ab90ad Add bash completion for service create|update --network-(add|rm)
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit fa0f470a5f)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 8498135904 Add bash completion for service create|update (update|rollback)-order
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 71dd0e0b66)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 15c737a076 Add bash completion for plugin events
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit f0f7150537)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers c1383568b1 Add bash completion for service create --detach
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 8baef1098e)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 3d418e35c9 Fix bash completion for network create --internal
`--internal` is a boolean option. It was falsely treated as non-boolean.

Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 12dc9eb11f)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 1c96c7a5ec Add bash completion for network create --scope|--config-only|config-from
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 22579ba56c)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 224f23149e Add bash completion for service create|update --entrypoint
Also fixes a wrong option: `--arg` should be `--args`.

Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit e0462e8472)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 8f5b746fdd Add bash completion for label filter of prune commands
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit 8b99b65ca8)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Harald Albers 9f5039a8d0 Add bash completion for network create --ingress
Signed-off-by: Harald Albers <github@albersweb.de>
(cherry picked from commit e4f9ad77c8)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-12 00:47:36 +00:00
Ying Li 482d9bdee0 If docker swarm ca is not called with the --rotate flag, the other
flags, including cert expiry, will be ignored, so warn if a user attempts
to use `docker swarm ca --cert-expiry` or something.

Signed-off-by: Ying Li <ying.li@docker.com>
(cherry picked from commit 32b43bc21a)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 23:06:39 +00:00
Simon Menke f6b5934f71 Remove deadlock in ContainerWait
when `cli.post(...)` fails `errC <- err` blocks because `errC` is unbufferd.

Signed-off-by: Simon Menke <simon.menke@gmail.com>
(cherry picked from commit 4d2d2ea39336aade783c5c415b83d129bdd339bb)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 23:04:40 +00:00
Andrew Hsu 7fe174d3f0 add go imports to enable specific cherry-pick of 913eb99
So that we don't have bring in the entire commit d3d1aab

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 23:00:32 +00:00
Sebastiaan van Stijn 425242f524 Fix handling of remote "git@" notation
`docker build` accepts remote repositories
using either the `git://` notation, or `git@`.

Docker attempted to parse both as an URL, however,
`git@` is not an URL, but an argument to `git clone`.

Go 1.7 silently ignored this, and managed to
extract the needed information from these
remotes, however, Go 1.8 does a more strict
validation, and invalidated these.

This patch adds a different path for `git@` remotes,
to prevent them from being handled as URL (and
invalidated).

A test is also added, because there were no
tests for handling of `git@` remotes.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 913eb99fdcd26a4106250bd40dfe8b9c18564b23)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 23:00:32 +00:00
Aaron Lehmann 78debca270 middleware: Redact secret data on "secret create"
With debug logging turned on, we currently log the base64-encoded secret
payload.

Change the middleware code to redact this. Since the field is called
"Data", it requires some context-sensitivity. The URI path is examined
to see which route is being invoked.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit 3fbc352cbbce06cd3001d6b14b2b1ebcb4d42cd5)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:58:41 +00:00
Andrew Hsu 38f7bacec2 Merge pull request #97 from andrewhsu/fix-progress
[17.06] progress: Show progress of replicated tasks before they are assigned
2017-07-11 15:56:39 -07:00
David Glasser bac91bd031 Fix stderr logging for journald and syslog
logger.PutMessage, added in #28762 (v17.04.0-ce), clears msg.Source. So journald
and syslog were treating stderr messages as if they were stdout.

Signed-off-by: David Glasser <glasser@davidglasser.net>
(cherry picked from commit 917050c5728f2fb9958ccb3ab66a23766f741adc)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:53:07 +00:00
Brian Goff 371fed7778 Fix plugin remove dir name after rename.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 4bf263c19873718394f8161dbc020bf4be30f9d6)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:51:51 +00:00
Andrew Hsu 3218b57038 import system for plugin/manager.go
To get the cherry-pick ba42966 to merge smoothly,
expecting import of system. The import of system was added by
https://github.com/docker/docker-ce/commit/8508f49 but not taking
entire commit.

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:51:51 +00:00
Brian Goff 73b8fa7bc6 Make plugin removes more resilient to failure
Before this patch, if the plugin's `config.json` is successfully removed
but the main plugin state dir could not be removed for some reason (e.g.
leaked mount), it will prevent the daemon from being able to be
restarted.

This patches changes this to atomically remove the plugin such that on
daemon restart we can detect that there was an error and re-try. It also
changes the logic so that it only logs errors on restore rather than
erroring out the daemon.

This also removes some code which is now duplicated elsewhere.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 11cf394e5ea964636294a219872b188fe5bdf4dd)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:51:51 +00:00
Kenfe-Mickael Laventure 4295f109dc Prevent a goroutine leak when healthcheck gets stopped
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
(cherry picked from commit 67297ba0051d39be544009ba76abea14bc0be8a4)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 22:49:56 +00:00
Andrew Hsu 2036e34692 Merge pull request #112 from andrewhsu/re-vndr-engine
[17.06] vndr check engine
2017-07-11 13:58:26 -07:00
Andrew Hsu 4ff90f5cb1 vndr to update vendor for github.com/spf13/cobra
No changes to vendor.conf, just running vndr.

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 07:43:45 +00:00
Andrew Hsu af26684564 vndr to update vendor for github.com/Microsoft/go-winio
No changes to vendor.conf, just running vndr.

Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 07:41:38 +00:00
Harald Albers f7a9f9fb67 system prune: only warn about volumes if --volumes is given
Signed-off-by: Harald Albers <github@albersweb.de>(cherry picked from commit 849b0e96a0)

Conflicts:
components/cli/cli/command/system/prune.go
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 05:45:51 +00:00
Brian Goff 647b4aecce Don't prune volumes on docker system prune
Volumes tend to carry important data and pruning them on `docker system
prune` can easily cause unwanted data loss.

Let's play it safe and not prune volumes on `system prune` by default,
and instead provide an option.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit 37fd6128dc)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 05:42:58 +00:00
Nishant Totla 056540a3f1 Do not add duplicate platform information to service spec
Signed-off-by: Nishant Totla <nishanttotla@gmail.com>
(cherry picked from commit da85b62001ec390bdc30b321c4a5cd23c17eeb81)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 05:06:28 +00:00
Nishant Totla 9abebe3dd0 Do not add duplicate platform information to service spec
Signed-off-by: Nishant Totla <nishanttotla@gmail.com>
(cherry picked from commit da85b62001ec390bdc30b321c4a5cd23c17eeb81)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 05:06:08 +00:00
Sebastiaan van Stijn 149c1a0435 Fix api-version history
Commit c79c16910c0f3d6e88f2dc6ef609ecc3b02ccef9
inadvertently put these API changes under API 1.31,
but they were added in API 1.30.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit dd5e818fabc7edf7fa4d952e62b949b224909d2a)

Conflicts:
components/engine/docs/api/version-history.md
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 04:27:14 +00:00
Sebastiaan van Stijn 2cf204719f Add missing API documentatoin for DataPathAddr
COmmit 0307fe1a0bcdc02583a24add41eb783c117bad8c added
a new `DataPathAddr` property to the swarm/init and swarm/join
endpoints. This property was not yet added to the
documentation.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit c79c16910c0f3d6e88f2dc6ef609ecc3b02ccef9)

Conflicts:
components/engine/docs/api/version-history.md
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 04:26:05 +00:00
Misty Stanley-Jones b237329009 Clarify that you can use -d and --rm together now
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit c63485b47d)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Misty Stanley-Jones 7c374afda6 Provide examples for multiple uses of the same flag
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit ef61582591)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Sebastiaan van Stijn d4fe7965d2 Some builder docs improvements
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 29b419eed5)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Misty Stanley-Jones ee07daead1 Fix false Liquid errors
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit 11c1729e00)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Misty Stanley-Jones 84d2a56ff3 Remove specific config info about userns-remap
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit 8222baf263)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Misty Stanley-Jones e3d07855d5 Fix small typo
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit ede69a38c2)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:36 +00:00
Misty Stanley-Jones 1d69626e30 Reformat filtering options in ps ref
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit 0888df3058)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Sebastiaan van Stijn 1c48508832 Explain stack deploy with multiple Compose files
The Docker Compose docs suggest using a separate override
configuration file for production-specific settings, but
it is not obvious how to feed this to `docker stack deploy`,
which only supports a single Compose file as input. Thus,
we now describe how to do this by merging the configuration
files with `docker-compose config`.

Signed-off-by: Denis Washington <denis@denisw.de>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 36fa4af30b)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Sebastiaan van Stijn 345e74062e Fix Markdown formatting of experimental "stacks"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit c5301ca35d)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Sebastiaan van Stijn 6a52ac6c49 Added usage example for -e for exec
Signed-off-by: Vishnu Narayanan <iamwishnu@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit c848d9b22d)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Slava Semushin b0d4910c7e docs/reference/builder.md: mention that USER directive also allows to specify the user group.
Signed-off-by: Slava Semushin <semushin@redhat.com>
(cherry picked from commit a84463d8d5)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Misty Stanley-Jones 73badb5bc7 Clarify ability to attach multiple times
Signed-off-by: Misty Stanley-Jones <misty@docker.com>
(cherry picked from commit b5d33c6e76)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-11 03:50:35 +00:00
Andrew Hsu c61737080b Merge pull request #96 from andrewhsu/fix-docs
[17.06] use man-pages and docs from docker/cli instead of moby/moby
2017-07-10 20:07:46 -07:00
Andrew Hsu 728c4a5bfe use latestChunk instead of latestFile to get cherry-pick commit 7bd7bde working
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-07 18:31:52 +00:00
Andrew Hsu e529da3b02 update changelog for docker-ce 17.06.1 rc1
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-06 21:16:43 +00:00
Brian Goff 7bd7bdeada Fix log readers can block writes indefinitely
Before this patch, a log reader is able to block all log writes
indefinitely (and other operations) by simply opening the log stream and
not consuming all the messages.

The reason for this is we protect the read stream from corruption by
ensuring there are no new writes while the log stream is consumed (and
caught up with the live entries).

We can get around this issue because log files are append only, so we
can limit reads to only the section of the file that was written to when
the log stream was first requested.

Now logs are only blocked until all files are opened, rather than
streamed to the client.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
(cherry picked from commit e2209185ed1c959131d4068ec7fc93e194dc0802)

Conflicts:
components/engine/daemon/logger/jsonfilelog/read.go
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-06 01:29:57 +00:00
Aaron Lehmann f9cb0563ec progress: Show progress of replicated tasks before they are assigned
This was only showing tasks that belong to nodes that are currently up,
so that tasks on down nodes don't appear to be stuck. But this
unintentionally excludes tasks that haven't been assigned yet, so if a
task is stuck before assignment, for example because no nodes meet its
constraints, a progress bar won't even be shown. The check should only
apply to tasks that have a node assignment.

Signed-off-by: Aaron Lehmann <aaron.lehmann@docker.com>
(cherry picked from commit d3d09f67b1)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:21:25 +00:00
Tibor Vass dee078ae96 Remove docs (except docs/api), experimental/, contrib/completion, man/
They have been moved to github.com/docker/cli.

Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit b5579a4ce33af4c1f67118e11b5a01008a36d26a)

Conflicts:
components/engine/docs/extend/legacy_plugins.md
components/engine/docs/reference/builder.md
components/engine/docs/reference/commandline/node_ls.md
components/engine/docs/reference/commandline/run.md
components/engine/docs/reference/run.md
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:09:49 +00:00
Sebastiaan van Stijn 9f64b19d32 Update docs, completion scripts for disable-legacy-registry
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 2b8f0eef7338f37104464154ba65aef7db3b9703)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit ee1bbab620)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:15 +00:00
Sebastiaan van Stijn 8be8aabad2 Merge pull request #33572 from hsluoyz/patch-1
Add Casbin plugin to the list of Authorization plugins in docs.
(cherry picked from commit 220831d541bfe9bf566c1038773198d431560dd3)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 0ad3e3294e74f443130b5e1fb1ef6b31f4f92366)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 8b11d46ecd)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:15 +00:00
Sebastiaan van Stijn db292393e5 Update deprecated.md for removal of --email flag
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 43239f62bedc4721d27744d21c122622988bb3ae)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 6ee8cf85c5)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:15 +00:00
Doug Davis 067a30c4e7 Merge pull request #32804 from bbodenmiller/patch-1
remove extra word
(cherry picked from commit 9db03bd8cdad3c8804105cb5794ebad5e728f48f)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 3eaec0071c3ce1b7201e37859afe5bcb78d4f215)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit ba4dcadcaa)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:15 +00:00
Vincent Demeester 87a974623f Merge pull request #32724 from PatrickLang/patricklang-win-memory
Adding more on -m and --memory
(cherry picked from commit c3fbca106552f2dadcb89510ff87945b50f36419)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit b4047a849bd3018f8a8eabf34613a4fca57f818e)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit b1738f4505)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:15 +00:00
Sebastiaan van Stijn 694bae5d49 Merge pull request #32735 from bhavin192/patch-1
Add note about host-dir in VOLUME
(cherry picked from commit f2fff9d913a8ab0436dd56033189a7c3713a59a2)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 8fd6547fc3eb67e7efa7efb007ae6a4494cd2bb3)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 5bf86c1984)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:14 +00:00
Brian Goff f8f518c6b7 Merge pull request #32791 from djalal/patch-1
fix typo
(cherry picked from commit 32a52716b964373b4ac464052e73ea5da79856c6)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit fcbd93f52032593cc71b298c00a46fd354356650)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 8247a36058)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:14 +00:00
Tõnis Tiigi 3dc403d562 Merge pull request #32684 from scjane/patch-3
Update builder.md
(cherry picked from commit 831066337743fc29ff122fce51afe44b8b3b3ba9)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit bc66821abbcf50c721ce9b8f52b339fda102d389)
Signed-off-by: Tibor Vass <tibor@docker.com>
(cherry picked from commit 7955683eb2)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:06:14 +00:00
Sebastiaan van Stijn a84cf88e26 Fix paths for completion scripts
The completion scripts have been moved to the
docker/cli repository, so should be taken from
that directory.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit e1902e55b76203dd8a5b5ff8249ff750ab365b96)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 06:02:38 +00:00
Wentao Zhang fbc1b3070d Limit max backoff delay to 2 seconds for GRPC connection
Docker use default GRPC backoff strategy to reconnect to containerd when
connection is lost. and the delay time grows exponentially, until reaches 120s.

So Change the max delay time to 2s to avoid docker and containerd
connection failure.

Signed-off-by: Wentao Zhang <zhangwentao234@huawei.com>
(cherry picked from commit d3d8c77d195ce74f36ae6eee24578b9cac48f897)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 03:39:09 +00:00
Andrew Hsu 5595be60a5 bump version to 17.06.1-ce-rc1
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>
2017-07-04 03:34:58 +00:00
Tonis Tiigi d0546cf484 build: fix add from remote url
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
(cherry picked from commit 2981667e11e24e9e1e61252a40ceb11fd7cb9811)
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2017-07-03 11:54:16 -07:00
356 changed files with 1291 additions and 39163 deletions
+43
View File
@@ -5,6 +5,49 @@ information on the list of deprecated flags and APIs please have a look at
https://docs.docker.com/engine/deprecated/ where target removal dates can also
be found.
## 17.06.1-ce (2017-07-XX)
### Builder
* Fix a regression, where `ADD` from remote URL's extracted archives [#89](https://github.com/docker/docker-ce/pull/89)
* Fix handling of remote "git@" notation [#100](https://github.com/docker/docker-ce/pull/100)
### Plugins
* Make plugin removes more resilient to failure [#91](https://github.com/docker/docker-ce/pull/91)
### Logging
* Fix stderr logging for journald and syslog [#95](https://github.com/docker/docker-ce/pull/95)
* Fix log readers can block writes indefinitely [#98](https://github.com/docker/docker-ce/pull/98)
### Runtime
* Prevent a goroutine leak when healthcheck gets stopped [#90](https://github.com/docker/docker-ce/pull/90)
* Do not error on relabel when relabel not supported [#92](https://github.com/docker/docker-ce/pull/92)
* Limit max backoff delay to 2 seconds for GRPC connection [#94](https://github.com/docker/docker-ce/pull/94)
* Fix issue preventing containers to run when memory cgroup was specified due to bug in certain kernels [#102](https://github.com/docker/docker-ce/pull/102)
* Fix container not responding to SIGKILL when paused [#102](https://github.com/docker/docker-ce/pull/102)
* Improve error message if an image for an incompatible OS is loaded [#108](https://github.com/docker/docker-ce/pull/108)
* Fix a handle leak in go-winio [#112](https://github.com/docker/docker-ce/pull/112)
### Client
* Make pruning volumes optional when running `docker system prune`, and add a `--volumes` flag [#109](https://github.com/docker/docker-ce/pull/109)
* Show progress of replicated tasks before they are assigned [#97](https://github.com/docker/docker-ce/pull/97)
* Fix `docker wait` hanging if the container does not exist [#106](https://github.com/docker/docker-ce/pull/106)
* If `docker swarm ca` is called without the `--rotate` flag, warn if other flags are passed [#110](https://github.com/docker/docker-ce/pull/110)
* Fix API version negotiation not working if the daemon returns an error [#115](https://github.com/docker/docker-ce/pull/115)
### Security
* Redact secret data on "secret create" [#99](https://github.com/docker/docker-ce/pull/99)
### Swarm Mode
* Do not add duplicate platform information to service spec [#107](https://github.com/docker/docker-ce/pull/107)
* Cluster update and memory issue fixes [#114](https://github.com/docker/docker-ce/pull/114)
## 17.06.0-ce (2017-06-19)
**NOTE**: Docker 17.06 by default disables communication with legacy (v1) registries. If you
+1 -1
View File
@@ -1 +1 @@
17.06.0-ce
17.06.1-ce-rc1
+1 -1
View File
@@ -1 +1 @@
17.06.0-ce
17.06.1-ce-rc1
@@ -275,7 +275,11 @@ func (u *replicatedProgressUpdater) update(service swarm.Service, tasks []swarm.
continue
}
}
if _, nodeActive := activeNodes[task.NodeID]; nodeActive {
if task.NodeID != "" {
if _, nodeActive := activeNodes[task.NodeID]; nodeActive {
tasksBySlot[task.Slot] = task
}
} else {
tasksBySlot[task.Slot] = task
}
}
+6 -1
View File
@@ -61,6 +61,11 @@ func runRotateCA(dockerCli command.Cli, flags *pflag.FlagSet, opts caOptions) er
}
if !opts.rotate {
for _, f := range []string{flagCACert, flagCAKey, flagCertExpiry, flagExternalCA} {
if flags.Changed(f) {
return fmt.Errorf("`--%s` flag requires the `--rotate` flag to update the CA", f)
}
}
if swarmInspect.ClusterInfo.TLSInfo.TrustRoot == "" {
fmt.Fprintln(dockerCli.Out(), "No CA information available")
} else {
@@ -71,7 +76,7 @@ func runRotateCA(dockerCli command.Cli, flags *pflag.FlagSet, opts caOptions) er
genRootCA := true
spec := &swarmInspect.Spec
opts.mergeSwarmSpec(spec, flags)
opts.mergeSwarmSpec(spec, flags) // updates the spec given the cert expiry or external CA flag
if flags.Changed(flagCACert) {
spec.CAConfig.SigningCACert = opts.rootCACert.Contents()
genRootCA = false
+42 -26
View File
@@ -1,7 +1,9 @@
package system
import (
"bytes"
"fmt"
"text/template"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
@@ -12,9 +14,10 @@ import (
)
type pruneOptions struct {
force bool
all bool
filter opts.FilterOpt
force bool
all bool
pruneVolumes bool
filter opts.FilterOpt
}
// NewPruneCommand creates a new cobra.Command for `docker prune`
@@ -34,6 +37,7 @@ func NewPruneCommand(dockerCli command.Cli) *cobra.Command {
flags := cmd.Flags()
flags.BoolVarP(&options.force, "force", "f", false, "Do not prompt for confirmation")
flags.BoolVarP(&options.all, "all", "a", false, "Remove all unused images not just dangling ones")
flags.BoolVar(&options.pruneVolumes, "volumes", false, "Prune volumes")
flags.Var(&options.filter, "filter", "Provide filter values (e.g. 'label=<key>=<value>')")
// "filter" flag is available in 1.28 (docker 17.04) and up
flags.SetAnnotation("filter", "version", []string{"1.28"})
@@ -41,38 +45,27 @@ func NewPruneCommand(dockerCli command.Cli) *cobra.Command {
return cmd
}
const (
warning = `WARNING! This will remove:
- all stopped containers
- all volumes not used by at least one container
- all networks not used by at least one container
%s
const confirmationTemplate = `WARNING! This will remove:
{{- range $_, $warning := . }}
- {{ $warning }}
{{- end }}
Are you sure you want to continue?`
danglingImageDesc = "- all dangling images"
allImageDesc = `- all images without at least one container associated to them`
)
func runPrune(dockerCli command.Cli, options pruneOptions) error {
var message string
if options.all {
message = fmt.Sprintf(warning, allImageDesc)
} else {
message = fmt.Sprintf(warning, danglingImageDesc)
}
if !options.force && !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), message) {
if !options.force && !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), confirmationMessage(options)) {
return nil
}
var spaceReclaimed uint64
for _, pruneFn := range []func(dockerCli command.Cli, filter opts.FilterOpt) (uint64, string, error){
pruneFuncs := []func(dockerCli command.Cli, filter opts.FilterOpt) (uint64, string, error){
prune.RunContainerPrune,
prune.RunVolumePrune,
prune.RunNetworkPrune,
} {
}
if options.pruneVolumes {
pruneFuncs = append(pruneFuncs, prune.RunVolumePrune)
}
for _, pruneFn := range pruneFuncs {
spc, output, err := pruneFn(dockerCli, options.filter)
if err != nil {
return err
@@ -96,3 +89,26 @@ func runPrune(dockerCli command.Cli, options pruneOptions) error {
return nil
}
// confirmationMessage constructs a confirmation message that depends on the cli options.
func confirmationMessage(options pruneOptions) string {
t := template.Must(template.New("confirmation message").Parse(confirmationTemplate))
warnings := []string{
"all stopped containers",
"all networks not used by at least one container",
}
if options.pruneVolumes {
warnings = append(warnings, "all volumes not used by at least one container")
}
if options.all {
warnings = append(warnings, "all images without at least one container associated to them")
} else {
warnings = append(warnings, "all dangling images")
}
warnings = append(warnings, "all build cache")
var buffer bytes.Buffer
t.Execute(&buffer, &warnings)
return buffer.String()
}
+79 -18
View File
@@ -1413,7 +1413,7 @@ _docker_container_port() {
_docker_container_prune() {
case "$prev" in
--filter)
COMPREPLY=( $( compgen -W "until" -S = -- "$cur" ) )
COMPREPLY=( $( compgen -W "label label! until" -S = -- "$cur" ) )
__docker_nospace
return
;;
@@ -2428,7 +2428,7 @@ _docker_image_ls() {
_docker_image_prune() {
case "$prev" in
--filter)
COMPREPLY=( $( compgen -W "until" -S = -- "$cur" ) )
COMPREPLY=( $( compgen -W "label label! until" -S = -- "$cur" ) )
__docker_nospace
return
;;
@@ -2704,11 +2704,11 @@ _docker_network_connect() {
_docker_network_create() {
case "$prev" in
--aux-address|--gateway|--internal|--ip-range|--ipam-opt|--ipv6|--opt|-o|--subnet)
--aux-address|--gateway|--ip-range|--ipam-opt|--ipv6|--opt|-o|--subnet)
return
;;
--ipam-driver)
COMPREPLY=( $( compgen -W "default" -- "$cur" ) )
--config-from)
__docker_complete_networks
return
;;
--driver|-d)
@@ -2716,14 +2716,22 @@ _docker_network_create() {
__docker_complete_plugins_bundled --type Network --remove host --remove null --add macvlan
return
;;
--ipam-driver)
COMPREPLY=( $( compgen -W "default" -- "$cur" ) )
return
;;
--label)
return
;;
--scope)
COMPREPLY=( $( compgen -W "local swarm" -- "$cur" ) )
return
;;
esac
case "$cur" in
-*)
COMPREPLY=( $( compgen -W "--attachable --aux-address --driver -d --gateway --help --internal --ip-range --ipam-driver --ipam-opt --ipv6 --label --opt -o --subnet" -- "$cur" ) )
COMPREPLY=( $( compgen -W "--attachable --aux-address --config-from --config-only --driver -d --gateway --help --ingress --internal --ip-range --ipam-driver --ipam-opt --ipv6 --label --opt -o --scope --subnet" -- "$cur" ) )
;;
esac
}
@@ -2806,7 +2814,7 @@ _docker_network_ls() {
_docker_network_prune() {
case "$prev" in
--filter)
COMPREPLY=( $( compgen -W "until" -S = -- "$cur" ) )
COMPREPLY=( $( compgen -W "label label! until" -S = -- "$cur" ) )
__docker_nospace
return
;;
@@ -3039,6 +3047,7 @@ _docker_service_update() {
_docker_service_update_and_create() {
local options_with_args="
--endpoint-mode
--entrypoint
--env -e
--force
--health-cmd
@@ -3053,7 +3062,6 @@ _docker_service_update_and_create() {
--log-driver
--log-opt
--mount
--network
--replicas
--reserve-cpu
--reserve-memory
@@ -3065,6 +3073,7 @@ _docker_service_update_and_create() {
--rollback-failure-action
--rollback-max-failure-ratio
--rollback-monitor
--rollback-order
--rollback-parallelism
--stop-grace-period
--stop-signal
@@ -3072,12 +3081,14 @@ _docker_service_update_and_create() {
--update-failure-action
--update-max-failure-ratio
--update-monitor
--update-order
--update-parallelism
--user -u
--workdir -w
"
local boolean_options="
--detach -d
--help
--no-healthcheck
--read-only
@@ -3099,6 +3110,7 @@ _docker_service_update_and_create() {
--host
--mode
--name
--network
--placement-pref
--publish -p
--secret
@@ -3138,7 +3150,7 @@ _docker_service_update_and_create() {
fi
if [ "$subcommand" = "update" ] ; then
options_with_args="$options_with_args
--arg
--args
--constraint-add
--constraint-rm
--container-label-add
@@ -3154,6 +3166,8 @@ _docker_service_update_and_create() {
--host-add
--host-rm
--image
--network-add
--network-rm
--placement-pref-add
--placement-pref-rm
--publish-add
@@ -3180,6 +3194,10 @@ _docker_service_update_and_create() {
__docker_complete_image_repos_and_tags
return
;;
--network-add|--network-rm)
__docker_complete_networks
return
;;
--placement-pref-add|--placement-pref-rm)
COMPREPLY=( $( compgen -W "spread" -S = -- "$cur" ) )
__docker_nospace
@@ -3240,6 +3258,10 @@ _docker_service_update_and_create() {
COMPREPLY=( $( compgen -W "continue pause rollback" -- "$cur" ) )
return
;;
--update-order|--rollback-order)
COMPREPLY=( $( compgen -W "start-first stop-first" -- "$cur" ) )
return
;;
--user|-u)
__docker_complete_user_group
return
@@ -3270,6 +3292,7 @@ _docker_service_update_and_create() {
_docker_swarm() {
local subcommands="
ca
init
join
join-token
@@ -3290,6 +3313,24 @@ _docker_swarm() {
esac
}
_docker_swarm_ca() {
case "$prev" in
--ca-cert|--ca-key)
_filedir
return
;;
--cert-expiry|--external-ca)
return
;;
esac
case "$cur" in
-*)
COMPREPLY=( $( compgen -W "--ca-cert --ca-key --cert-expiry --detach -d --external-ca --help --quiet -q --rotate" -- "$cur" ) )
;;
esac
}
_docker_swarm_init() {
case "$prev" in
--advertise-addr)
@@ -3308,6 +3349,10 @@ _docker_swarm_init() {
--cert-expiry|--dispatcher-heartbeat|--external-ca|--max-snapshots|--snapshot-interval|--task-history-limit)
return
;;
--data-path-addr)
__docker_complete_local_interfaces
return
;;
--listen-addr)
if [[ $cur == *: ]] ; then
COMPREPLY=( $( compgen -W "2377" -- "${cur##*:}" ) )
@@ -3321,7 +3366,7 @@ _docker_swarm_init() {
case "$cur" in
-*)
COMPREPLY=( $( compgen -W "--advertise-addr --data-path-addr --autolock --availability --cert-expiry --dispatcher-heartbeat --external-ca --force-new-cluster --help --listen-addr --max-snapshots --snapshot-interval --task-history-limit" -- "$cur" ) )
COMPREPLY=( $( compgen -W "--advertise-addr --autolock --availability --cert-expiry --data-path-addr --dispatcher-heartbeat --external-ca --force-new-cluster --help --listen-addr --max-snapshots --snapshot-interval --task-history-limit" -- "$cur" ) )
;;
esac
}
@@ -3337,6 +3382,14 @@ _docker_swarm_join() {
fi
return
;;
--availability)
COMPREPLY=( $( compgen -W "active drain pause" -- "$cur" ) )
return
;;
--data-path-addr)
__docker_complete_local_interfaces
return
;;
--listen-addr)
if [[ $cur == *: ]] ; then
COMPREPLY=( $( compgen -W "2377" -- "${cur##*:}" ) )
@@ -3346,10 +3399,6 @@ _docker_swarm_join() {
fi
return
;;
--availability)
COMPREPLY=( $( compgen -W "active drain pause" -- "$cur" ) )
return
;;
--token)
return
;;
@@ -3357,7 +3406,7 @@ _docker_swarm_join() {
case "$cur" in
-*)
COMPREPLY=( $( compgen -W "--advertise-addr --data-path-addr --availability --help --listen-addr --token" -- "$cur" ) )
COMPREPLY=( $( compgen -W "--advertise-addr --availability --data-path-addr --help --listen-addr --token" -- "$cur" ) )
;;
*:)
COMPREPLY=( $( compgen -W "2377" -- "${cur##*:}" ) )
@@ -4230,13 +4279,16 @@ _docker_system_events() {
destroy
detach
die
disable
disconnect
enable
exec_create
exec_detach
exec_start
export
health_status
import
install
kill
load
mount
@@ -4245,6 +4297,7 @@ _docker_system_events() {
pull
push
reload
remove
rename
resize
restart
@@ -4270,7 +4323,7 @@ _docker_system_events() {
return
;;
type)
COMPREPLY=( $( compgen -W "container daemon image network volume" -- "${cur##*=}" ) )
COMPREPLY=( $( compgen -W "container daemon image network plugin volume" -- "${cur##*=}" ) )
return
;;
volume)
@@ -4314,7 +4367,7 @@ _docker_system_info() {
_docker_system_prune() {
case "$prev" in
--filter)
COMPREPLY=( $( compgen -W "until" -S = -- "$cur" ) )
COMPREPLY=( $( compgen -W "label label! until" -S = -- "$cur" ) )
__docker_nospace
return
;;
@@ -4433,9 +4486,17 @@ _docker_volume_ls() {
}
_docker_volume_prune() {
case "$prev" in
--filter)
COMPREPLY=( $( compgen -W "label label!" -S = -- "$cur" ) )
__docker_nospace
return
;;
esac
case "$cur" in
-*)
COMPREPLY=( $( compgen -W "--force -f --help" -- "$cur" ) )
COMPREPLY=( $( compgen -W "--filter --force -f --help" -- "$cur" ) )
;;
esac
}
@@ -2620,7 +2620,7 @@ __docker_subcommand() {
"($help)--default-gateway-v6[Container default gateway IPv6 address]:IPv6 address: " \
"($help)--default-shm-size=[Default shm size for containers]:size:" \
"($help)*--default-ulimit=[Default ulimits for containers]:ulimit: " \
"($help)--disable-legacy-registry[Disable contacting legacy registries]" \
"($help)--disable-legacy-registry[Disable contacting legacy registries (default true)]" \
"($help)*--dns=[DNS server to use]:DNS: " \
"($help)*--dns-opt=[DNS options to use]:DNS option: " \
"($help)*--dns-search=[DNS search domains to use]:DNS search: " \
+2 -2
View File
@@ -138,7 +138,7 @@ on all subcommands (due to it conflicting with, e.g. `-h` / `--hostname` on
### `-e` and `--email` flags on `docker login`
**Deprecated In Release: [v1.11.0](https://github.com/docker/docker/releases/tag/v1.11.0)**
**Target For Removal In Release: v17.06**
**Removed In Release: [v17.06](https://github.com/docker/docker-ce/releases/tag/v17.06.0-ce)**
The docker login command is removing the ability to automatically register for an account with the target registry if the given username doesn't exist. Due to this change, the email flag is no longer required, and will be deprecated.
@@ -292,7 +292,7 @@ of the `--changes` flag that allows to pass `Dockerfile` commands.
**Target For Removal In Release: v17.12**
Version 1.9 adds a flag (`--disable-legacy-registry=false`) which prevents the
Version 1.8.3 added a flag (`--disable-legacy-registry=false`) which prevents the
docker daemon from `pull`, `push`, and `login` operations against v1
registries. Though enabled by default, this signals the intent to deprecate
the v1 protocol.
+3 -2
View File
@@ -87,8 +87,9 @@ Plugin
Plugin | Description
------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Twistlock AuthZ Broker](https://github.com/twistlock/authz) | A basic extendable authorization plugin that runs directly on the host or inside a container. This plugin allows you to define user policies that it evaluates during authorization. Basic authorization is provided if Docker daemon is started with the --tlsverify flag (username is extracted from the certificate common name).
[HBM plugin](https://github.com/kassisol/hbm) | An authorization plugin that prevents from executing commands with certains parameters.
[Casbin AuthZ Plugin](https://github.com/casbin/casbin-authz-plugin) | An authorization plugin based on [Casbin](https://github.com/casbin/casbin), which supports access control models like ACL, RBAC, ABAC. The access control model can be customized. The policy can be persisted into file or DB.
[HBM plugin](https://github.com/kassisol/hbm) | An authorization plugin that prevents from executing commands with certains parameters.
[Twistlock AuthZ Broker](https://github.com/twistlock/authz) | A basic extendable authorization plugin that runs directly on the host or inside a container. This plugin allows you to define user policies that it evaluates during authorization. Basic authorization is provided if Docker daemon is started with the --tlsverify flag (username is extracted from the certificate common name).
## Troubleshooting a plugin
@@ -27,7 +27,7 @@ same is true for callers using Docker's Engine API to contact the daemon. If you
require greater access control, you can create authorization plugins and add
them to your Docker daemon configuration. Using an authorization plugin, a
Docker administrator can configure granular access policies for managing access
to Docker daemon.
to the Docker daemon.
Anyone with the appropriate skills can develop an authorization plugin. These
skills, at their most basic, are knowledge of Docker, understanding of REST, and
+41 -24
View File
@@ -30,13 +30,13 @@ Practices](https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-pr
## Usage
The [`docker build`](commandline/build.md) command builds an image from
a `Dockerfile` and a *context*. The build's context is the files at a specified
location `PATH` or `URL`. The `PATH` is a directory on your local filesystem.
The `URL` is a Git repository location.
a `Dockerfile` and a *context*. The build's context is the set of files at a
specified location `PATH` or `URL`. The `PATH` is a directory on your local
filesystem. The `URL` is a Git repository location.
A context is processed recursively. So, a `PATH` includes any subdirectories and
the `URL` includes the repository and its submodules. A simple build command
that uses the current directory as context:
the `URL` includes the repository and its submodules. This example shows a
build command that uses the current directory as context:
$ docker build .
Sending build context to Docker daemon 6.51 MB
@@ -94,8 +94,8 @@ instructions.
Whenever possible, Docker will re-use the intermediate images (cache),
to accelerate the `docker build` process significantly. This is indicated by
the `Using cache` message in the console output.
(For more information, see the [Build cache section](https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/#/build-cache)) in the
`Dockerfile` best practices guide:
(For more information, see the [Build cache section](https://docs.docker.com/engine/userguide/eng-image/dockerfile_best-practices/#build-cache) in the
`Dockerfile` best practices guide):
$ docker build -t svendowideit/ambassador .
Sending build context to Docker daemon 15.36 kB
@@ -1281,26 +1281,43 @@ This Dockerfile results in an image that causes `docker run`, to
create a new mount point at `/myvol` and copy the `greeting` file
into the newly created volume.
> **Note**:
> When using Windows-based containers, the destination of a volume inside the
> container must be one of: a non-existing or empty directory; or a drive other
> than C:.
### Notes about specifying volumes
> **Note**:
> If any build steps change the data within the volume after it has been
> declared, those changes will be discarded.
Keep the following things in mind about volumes in the `Dockerfile`.
> **Note**:
> The list is parsed as a JSON array, which means that
> you must use double-quotes (") around words not single-quotes (').
- **Volumes on Windows-based containers**: When using Windows-based containers,
the destination of a volume inside the container must be one of:
- a non-existing or empty directory
- a drive other than `C:`
- **Changing the volume from within the Dockerfile**: If any build steps change the
data within the volume after it has been declared, those changes will be discarded.
- **JSON formatting**: The list is parsed as a JSON array.
You must enclose words with double quotes (`"`)rather than single quotes (`'`).
- **The host directory is declared at container run-time**: The host directory
(the mountpoint) is, by its nature, host-dependent. This is to preserve image
portability. since a given host directory can't be guaranteed to be available
on all hosts.For this reason, you can't mount a host directory from
within the Dockerfile. The `VOLUME` instruction does not support specifying a `host-dir`
parameter. You must specify the mountpoint when you create or run the container.
## USER
USER daemon
USER <user>[:<group>]
or
USER <UID>[:<GID>]
The `USER` instruction sets the user name (or UID) and optionally the user
group (or GID) to use when running the image and for any `RUN`, `CMD` and
`ENTRYPOINT` instructions that follow it in the `Dockerfile`.
> **Warning**:
> When the user does doesn't have a primary group then the image (or the next
> instructions) will be run with the `root` group.
The `USER` instruction sets the user name or UID to use when running the image
and for any `RUN`, `CMD` and `ENTRYPOINT` instructions that follow it in the
`Dockerfile`.
## WORKDIR
@@ -1311,9 +1328,9 @@ The `WORKDIR` instruction sets the working directory for any `RUN`, `CMD`,
If the `WORKDIR` doesn't exist, it will be created even if it's not used in any
subsequent `Dockerfile` instruction.
It can be used multiple times in the one `Dockerfile`. If a relative path
is provided, it will be relative to the path of the previous `WORKDIR`
instruction. For example:
The `WORKDIR` instruction can be used multiple times in a `Dockerfile`. If a
relative path is provided, it will be relative to the path of the previous
`WORKDIR` instruction. For example:
WORKDIR /a
WORKDIR b
@@ -40,7 +40,7 @@ interactively, as though the commands were running directly in your terminal.
> not be interacting with the terminal at that time.
You can attach to the same contained process multiple times simultaneously,
even as a different user with the appropriate permissions.
from different sessions on the Docker host.
To stop a container, use `CTRL-c`. This key sequence sends `SIGKILL` to the
container. If `--sig-proxy` is true (the default),`CTRL-c` sends a `SIGINT` to
@@ -63,11 +63,11 @@ Options:
## Description
Builds Docker images from a Dockerfile and a "context". A build's context is
the files located in the specified `PATH` or `URL`. The build process can refer
to any of the files in the context. For example, your build can use an
[*ADD*](../builder.md#add) instruction to reference a file in the
context.
The `docker build` command builds Docker images from a Dockerfile and a
"context". A build's context is the set of files located in the specified
`PATH` or `URL`. The build process can refer to any of the files in the
context. For example, your build can use a [*COPY*](../builder.md#copy)
instruction to reference a file in the context.
The `URL` parameter can refer to three kinds of resources: Git repositories,
pre-packaged tarball contexts and plain text files.
@@ -88,7 +88,7 @@ user credentials, VPN's, and so forth.
Git URLs accept context configuration in their fragment section, separated by a
colon `:`. The first part represents the reference that Git will check out,
this can be either a branch, a tag, or a remote reference. The second part
and can be either a branch, a tag, or a remote reference. The second part
represents a subdirectory inside the repository that will be used as a build
context.
@@ -216,6 +216,7 @@ attach`, `docker exec`, `docker run` or `docker start` command.
Following is a sample `config.json` file:
```json
{% raw %}
{
"HttpHeaders": {
"MyHeader": "MyValue"
@@ -236,6 +237,7 @@ Following is a sample `config.json` file:
"unicorn.example.com": "vcbait"
}
}
{% endraw %}
```
### Notary
@@ -42,7 +42,7 @@ Options:
--default-gateway-v6 ip Container default gateway IPv6 address
--default-runtime string Default OCI runtime for containers (default "runc")
--default-ulimit ulimit Default ulimits for containers (default [])
--disable-legacy-registry Disable contacting legacy registries
--disable-legacy-registry Disable contacting legacy registries (default true)
--dns list DNS server to use (default [])
--dns-opt list DNS options to use (default [])
--dns-search list DNS search domains to use (default [])
@@ -901,7 +901,18 @@ system's list of trusted CAs instead of enabling `--insecure-registry`.
##### Legacy Registries
Enabling `--disable-legacy-registry` forces a docker daemon to only interact with registries which support the V2 protocol. Specifically, the daemon will not attempt `push`, `pull` and `login` to v1 registries. The exception to this is `search` which can still be performed on v1 registries.
Operations against registries supporting only the legacy v1 protocol are
disabled by default. Specifically, the daemon will not attempt `push`,
`pull` and `login` to v1 registries. The exception to this is `search`
which can still be performed on v1 registries.
Add `"disable-legacy-registry":false` to the [daemon configuration
file](#daemon-configuration-file), or set the
`--disable-legacy-registry=false` flag, if you need to interact with
registries that have not yet migrated to the v2 protocol.
Interaction v1 registries will no longer be supported in Docker v17.12,
and the `disable-legacy-registry` configuration option will be removed.
#### Running a Docker daemon behind an HTTPS_PROXY
@@ -958,14 +969,14 @@ $ sudo dockerd \
The currently supported cluster store options are:
| Option | Description |
|-----------------------|-------------|
| `discovery.heartbeat` | Specifies the heartbeat timer in seconds which is used by the daemon as a `keepalive` mechanism to make sure discovery module treats the node as alive in the cluster. If not configured, the default value is 20 seconds. |
| Option | Description |
|:----------------------|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `discovery.heartbeat` | Specifies the heartbeat timer in seconds which is used by the daemon as a `keepalive` mechanism to make sure discovery module treats the node as alive in the cluster. If not configured, the default value is 20 seconds. |
| `discovery.ttl` | Specifies the TTL (time-to-live) in seconds which is used by the discovery module to timeout a node if a valid heartbeat is not received within the configured ttl value. If not configured, the default value is 60 seconds. |
| `kv.cacertfile` | Specifies the path to a local file with PEM encoded CA certificates to trust. |
| `kv.certfile` | Specifies the path to a local file with a PEM encoded certificate. This certificate is used as the client cert for communication with the Key/Value store. |
| `kv.keyfile` | Specifies the path to a local file with a PEM encoded private key. This private key is used as the client key for communication with the Key/Value store. |
| `kv.path` | Specifies the path in the Key/Value store. If not configured, the default value is 'docker/nodes'. |
| `kv.cacertfile` | Specifies the path to a local file with PEM encoded CA certificates to trust. |
| `kv.certfile` | Specifies the path to a local file with a PEM encoded certificate. This certificate is used as the client cert for communication with the Key/Value store. |
| `kv.keyfile` | Specifies the path to a local file with a PEM encoded private key. This private key is used as the client key for communication with the Key/Value store. |
| `kv.path` | Specifies the path in the Key/Value store. If not configured, the default value is 'docker/nodes'. |
#### Access authorization
@@ -994,152 +1005,18 @@ plugin](../../extend/plugins_authorization.md) section in the Docker extend sect
#### Daemon user namespace options
The Linux kernel [user namespace support](http://man7.org/linux/man-pages/man7/user_namespaces.7.html) provides additional security by enabling
a process, and therefore a container, to have a unique range of user and
group IDs which are outside the traditional user and group range utilized by
the host system. Potentially the most important security improvement is that,
by default, container processes running as the `root` user will have expected
administrative privilege (with some restrictions) inside the container but will
effectively be mapped to an unprivileged `uid` on the host.
The Linux kernel
[user namespace support](http://man7.org/linux/man-pages/man7/user_namespaces.7.html)
provides additional security by enabling a process, and therefore a container,
to have a unique range of user and group IDs which are outside the traditional
user and group range utilized by the host system. Potentially the most important
security improvement is that, by default, container processes running as the
`root` user will have expected administrative privilege (with some restrictions)
inside the container but will effectively be mapped to an unprivileged `uid` on
the host.
When user namespace support is enabled, Docker creates a single daemon-wide mapping
for all containers running on the same engine instance. The mappings will
utilize the existing subordinate user and group ID feature available on all modern
Linux distributions.
The [`/etc/subuid`](http://man7.org/linux/man-pages/man5/subuid.5.html) and
[`/etc/subgid`](http://man7.org/linux/man-pages/man5/subgid.5.html) files will be
read for the user, and optional group, specified to the `--userns-remap`
parameter. If you do not wish to specify your own user and/or group, you can
provide `default` as the value to this flag, and a user will be created on your behalf
and provided subordinate uid and gid ranges. This default user will be named
`dockremap`, and entries will be created for it in `/etc/passwd` and
`/etc/group` using your distro's standard user and group creation tools.
> **Note**: The single mapping per-daemon restriction is in place for now
> because Docker shares image layers from its local cache across all
> containers running on the engine instance. Since file ownership must be
> the same for all containers sharing the same layer content, the decision
> was made to map the file ownership on `docker pull` to the daemon's user and
> group mappings so that there is no delay for running containers once the
> content is downloaded. This design preserves the same performance for `docker
> pull`, `docker push`, and container startup as users expect with
> user namespaces disabled.
##### Start the daemon with user namespaces enabled
To enable user namespace support, start the daemon with the
`--userns-remap` flag, which accepts values in the following formats:
- uid
- uid:gid
- username
- username:groupname
If numeric IDs are provided, translation back to valid user or group names
will occur so that the subordinate uid and gid information can be read, given
these resources are name-based, not id-based. If the numeric ID information
provided does not exist as entries in `/etc/passwd` or `/etc/group`, daemon
startup will fail with an error message.
**Example: starting with default Docker user management:**
```bash
$ sudo dockerd --userns-remap=default
```
When `default` is provided, Docker will create - or find the existing - user and group
named `dockremap`. If the user is created, and the Linux distribution has
appropriate support, the `/etc/subuid` and `/etc/subgid` files will be populated
with a contiguous 65536 length range of subordinate user and group IDs, starting
at an offset based on prior entries in those files. For example, Ubuntu will
create the following range, based on an existing user named `user1` already owning
the first 65536 range:
```bash
$ cat /etc/subuid
user1:100000:65536
dockremap:165536:65536
```
If you have a preferred/self-managed user with subordinate ID mappings already
configured, you can provide that username or uid to the `--userns-remap` flag.
If you have a group that doesn't match the username, you may provide the `gid`
or group name as well; otherwise the username will be used as the group name
when querying the system for the subordinate group ID range.
The output of `docker info` can be used to determine if the daemon is running
with user namespaces enabled or not. If the daemon is configured with user
namespaces, the Security Options entry in the response will list "userns" as
one of the enabled security features.
##### Behavior differences when user namespaces are enabled
When you start the Docker daemon with `--userns-remap`, Docker segregates the graph directory
where the images are stored by adding an extra directory with a name corresponding to the
remapped UID and GID. For example, if the remapped UID and GID begin with `165536`, all
images and containers running with that remap setting are located in `/var/lib/docker/165536.165536`
instead of `/var/lib/docker/`.
In addition, the files and directories within the new directory, which correspond to
images and container layers, are also owned by the new UID and GID. To set the ownership
correctly, you need to re-pull the images and restart the containers after starting the
daemon with `--userns-remap`.
##### Detailed information on `subuid`/`subgid` ranges
Given potential advanced use of the subordinate ID ranges by power users, the
following paragraphs define how the Docker daemon currently uses the range entries
found within the subordinate range files.
The simplest case is that only one contiguous range is defined for the
provided user or group. In this case, Docker will use that entire contiguous
range for the mapping of host uids and gids to the container process. This
means that the first ID in the range will be the remapped root user, and the
IDs above that initial ID will map host ID 1 through the end of the range.
From the example `/etc/subuid` content shown above, the remapped root
user would be uid 165536.
If the system administrator has set up multiple ranges for a single user or
group, the Docker daemon will read all the available ranges and use the
following algorithm to create the mapping ranges:
1. The range segments found for the particular user will be sorted by *start ID* ascending.
2. Map segments will be created from each range in increasing value with a length matching the length of each segment. Therefore the range segment with the lowest numeric starting value will be equal to the remapped root, and continue up through host uid/gid equal to the range segment length. As an example, if the lowest segment starts at ID 1000 and has a length of 100, then a map of 1000 -> 0 (the remapped root) up through 1100 -> 100 will be created from this segment. If the next segment starts at ID 10000, then the next map will start with mapping 10000 -> 101 up to the length of this second segment. This will continue until no more segments are found in the subordinate files for this user.
3. If more than five range segments exist for a single user, only the first five will be utilized, matching the kernel's limitation of only five entries in `/proc/self/uid_map` and `proc/self/gid_map`.
##### Disable user namespace for a container
If you enable user namespaces on the daemon, all containers are started
with user namespaces enabled. In some situations you might want to disable
this feature for a container, for example, to start a privileged container (see
[user namespace known restrictions](#user-namespace-known-restrictions)).
To enable those advanced features for a specific container use `--userns=host`
in the `run/exec/create` command.
This option will completely disable user namespace mapping for the container's user.
##### User namespace known restrictions
The following standard Docker features are currently incompatible when
running a Docker daemon with user namespaces enabled:
- sharing PID or NET namespaces with the host (`--pid=host` or `--net=host`)
- Using `--privileged` mode flag on `docker run` (unless also specifying `--userns=host`)
In general, user namespaces are an advanced feature and will require
coordination with other capabilities. For example, if volumes are mounted from
the host, file ownership will have to be pre-arranged if the user or
administrator wishes the containers to have expected access to the volume
contents. Note that when using external volume or graph driver plugins, those
external software programs must be made aware of user and group mapping ranges
if they are to work seamlessly with user namespace support.
Finally, while the `root` user inside a user namespaced container process has
many of the expected admin privileges that go along with being the superuser, the
Linux kernel has restrictions based on internal knowledge that this is a user namespaced
process. The most notable restriction that we are aware of at this time is the
inability to use `mknod`. Permission will be denied for device creation even as
container `root` inside a user namespace.
For details about how to use this feature, as well as limitations, see
[Isolate containers with a user namespace](https://docs.docker.com/engine/security/userns-remap/).
### Miscellaneous options
@@ -76,6 +76,17 @@ $ docker exec -it ubuntu_bash bash
This will create a new Bash session in the container `ubuntu_bash`.
Next, set an environment variable in the current bash session.
```bash
$ docker exec -it -e VAR=1 ubuntu_bash bash
```
This will create a new Bash session in the container `ubuntu_bash` with environment
variable `$VAR` set to "1". Note that this environment variable will only be valid
on the current Bash session.
### Try to run `docker exec` on a paused container
If the container is paused, then the `docker exec` command will fail with an error:
@@ -89,7 +89,7 @@ ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
1bcef6utixb0l0ca7gxuivsj0 swarm-worker2 Ready Active
```
#### membersip
#### membership
The `membership` filter matches nodes based on the presence of a `membership` and a value
`accepted` or `pending`.
+31 -30
View File
@@ -82,20 +82,21 @@ than one filter, then pass multiple flags (e.g. `--filter "foo=bar" --filter "bi
The currently supported filters are:
* id (container's id)
* label (`label=<key>` or `label=<key>=<value>`)
* name (container's name)
* exited (int - the code of exited containers. Only useful with `--all`)
* status (`created|restarting|running|removing|paused|exited|dead`)
* ancestor (`<image-name>[:<tag>]`, `<image id>` or `<image@digest>`) - filters containers that were created from the given image or a descendant.
* before (container's id or name) - filters containers created before given id or name
* since (container's id or name) - filters containers created since given id or name
* isolation (`default|process|hyperv`) (Windows daemon only)
* volume (volume name or mount point) - filters containers that mount volumes.
* network (network id or name) - filters containers connected to the provided network
* health (starting|healthy|unhealthy|none) - filters containers based on healthcheck status
* publish=(container's published port) - filters published ports by containers
* expose=(container's exposed port) - filters exposed ports by containers
| Filter | Description |
|:----------------------|:-------------------------------------------------------------------------------------------------------------------------------------|
| `id` | container's ID |
| `name` | container's name |
| `label` | An arbitrary string representing either a key or a key-value pair |
| `exited` | An integer representing the container's exit code. Only useful with `--all`. |
| `status` | One of `created|restarting|running|removing|paused|exited|dead` |
| `ancestor` | Filters containers which share a given image as an ancestor. Expressed as `<image-name>[:<tag>]`, `<image id>`, or `<image@digest>` |
| `before` or `since` | Filters containers created before or after a given container ID or name |
| `volume` | Filters running containers which have mounted a given volume or bind mount. |
| `network` | Filters running containers connected to a given network. |
| `publish` or `expose` | Filters containers which publish or expose a given port. |
| `health` | One of `starting|healthy|unhealthy|none`. Filters containers based on their healthcheck status. |
| `isolation` | Windows daemon only. One of `default|process|hyperv`. |
#### label
@@ -387,21 +388,21 @@ template.
Valid placeholders for the Go template are listed below:
Placeholder | Description
--------------|----------------------------------------------------------------------------------------------------
`.ID` | Container ID
`.Image` | Image ID
`.Command` | Quoted command
`.CreatedAt` | Time when the container was created.
`.RunningFor` | Elapsed time since the container was started.
`.Ports` | Exposed ports.
`.Status` | Container status.
`.Size` | Container disk size.
`.Names` | Container names.
`.Labels` | All labels assigned to the container.
`.Label` | Value of a specific label for this container. For example `'{{.Label "com.docker.swarm.cpu"}}'`
`.Mounts` | Names of the volumes mounted in this container.
`.Networks` | Names of the networks attached to this container.
| Placeholder | Description |
|:--------------|:------------------------------------------------------------------------------------------------|
| `.ID` | Container ID |
| `.Image` | Image ID |
| `.Command` | Quoted command |
| `.CreatedAt` | Time when the container was created. |
| `.RunningFor` | Elapsed time since the container was started. |
| `.Ports` | Exposed ports. |
| `.Status` | Container status. |
| `.Size` | Container disk size. |
| `.Names` | Container names. |
| `.Labels` | All labels assigned to the container. |
| `.Label` | Value of a specific label for this container. For example `'{{.Label "com.docker.swarm.cpu"}}'` |
| `.Mounts` | Names of the volumes mounted in this container. |
| `.Networks` | Names of the networks attached to this container. |
When using the `--format` option, the `ps` command will either output the data
exactly as the template declares or, when using the `table` directive, includes
@@ -429,4 +430,4 @@ a87ecb4f327c com.docker.swarm.node=ubuntu,com.docker.swarm.storage=ssd
01946d9d34d8
c1d3b0166030 com.docker.swarm.node=debian,com.docker.swarm.cpu=6
41d50ecd2f57 com.docker.swarm.node=fedora,com.docker.swarm.cpu=3,com.docker.swarm.storage=ssd
```
```
@@ -745,6 +745,41 @@ PS C:\> docker run -d --isolation default microsoft/nanoserver powershell echo h
PS C:\> docker run -d --isolation hyperv microsoft/nanoserver powershell echo hyperv
```
### Specify hard limits on memory available to containers (-m, --memory)
These parameters always set an upper limit on the memory available to the container. On Linux, this
is set on the cgroup and applications in a container can query it at `/sys/fs/cgroup/memory/memory.limit_in_bytes`.
On Windows, this will affect containers differently depending on what type of isolation is used.
- With `process` isolation, Windows will report the full memory of the host system, not the limit to applications running inside the container
```powershell
docker run -it -m 2GB --isolation=process microsoft/nanoserver powershell Get-ComputerInfo *memory*
CsTotalPhysicalMemory : 17064509440
CsPhyicallyInstalledMemory : 16777216
OsTotalVisibleMemorySize : 16664560
OsFreePhysicalMemory : 14646720
OsTotalVirtualMemorySize : 19154928
OsFreeVirtualMemory : 17197440
OsInUseVirtualMemory : 1957488
OsMaxProcessMemorySize : 137438953344
```
- With `hyperv` isolation, Windows will create a utility VM that is big enough to hold the memory limit, plus the minimal OS needed to host the container. That size is reported as "Total Physical Memory."
```powershell
docker run -it -m 2GB --isolation=hyperv microsoft/nanoserver powershell Get-ComputerInfo *memory*
CsTotalPhysicalMemory : 2683355136
CsPhyicallyInstalledMemory :
OsTotalVisibleMemorySize : 2620464
OsFreePhysicalMemory : 2306552
OsTotalVirtualMemorySize : 2620464
OsFreeVirtualMemory : 2356692
OsInUseVirtualMemory : 263772
OsMaxProcessMemorySize : 137438953344
```
### Configure namespaced kernel parameters (sysctls) at runtime
The `--sysctl` sets namespaced kernel parameters (sysctls) in the
@@ -167,6 +167,8 @@ $ docker service create --name redis \
4cdgfyky7ozwh3htjfw0d12qv
```
To grant a service access to multiple secrets, use multiple `--secret` flags.
Secrets are located in `/run/secrets` in the container. If no target is
specified, the name of the secret will be used as the in memory file in the
container. If a target is specified, that will be the filename. In the
@@ -191,10 +193,26 @@ tutorial](https://docs.docker.com/engine/swarm/swarm-tutorial/rolling-update/).
### Set environment variables (-e, --env)
This sets environmental variables for all tasks in a service. For example:
This sets an environmental variable for all tasks in a service. For example:
```bash
$ docker service create --name redis_2 --replicas 5 --env MYVAR=foo redis:3.0.6
$ docker service create \
--name redis_2 \
--replicas 5 \
--env MYVAR=foo \
redis:3.0.6
```
To specify multiple environment variables, specify multiple `--env` flags, each
with a separate key-value pair.
```bash
$ docker service create \
--name redis_2 \
--replicas 5 \
--env MYVAR=foo \
--env MYVAR2=bar \
redis:3.0.6
```
### Create a service with specific hostname (--hostname)
@@ -40,7 +40,7 @@ has to be run targeting a manager node.
### Compose file
The `deploy` command supports compose file version `3.0` and above."
The `deploy` command supports compose file version `3.0` and above.
```bash
$ docker stack deploy --compose-file docker-compose.yml vossibility
@@ -57,7 +57,28 @@ Creating service vossibility_ghollector
Creating service vossibility_lookupd
```
You can verify that the services were correctly created
Only a single Compose file is accepted. If your configuration is split between
multiple Compose files, e.g. a base configuration and environment-specific overrides,
you can combine these by passing them to `docker-compose config` with the `-f` option
and redirecting the merged output into a new file.
```bash
$ docker-compose -f docker-compose.yml -f docker-compose.prod.yml config > docker-stack.yml
$ docker stack deploy --compose-file docker-stack.yml vossibility
Ignoring unsupported options: links
Creating network vossibility_vossibility
Creating network vossibility_default
Creating service vossibility_nsqd
Creating service vossibility_logstash
Creating service vossibility_elasticsearch
Creating service vossibility_kibana
Creating service vossibility_ghollector
Creating service vossibility_lookupd
```
You can verify that the services were correctly created:
```bash
$ docker service ls
+61 -60
View File
@@ -87,8 +87,9 @@ default foreground mode:
To start a container in detached mode, you use `-d=true` or just `-d` option. By
design, containers started in detached mode exit when the root process used to
run the container exits. A container in detached mode cannot be automatically
removed when it stops, this means you cannot use the `--rm` option with `-d` option.
run the container exits, unless you also specify the `--rm` option. If you use
`-d` with `--rm`, the container is removed when it exits **or** when the daemon
exits, whichever happens first.
Do not pass a `service x start` command to a detached container. For example, this
command attempts to start the `nginx` service.
@@ -149,7 +150,7 @@ is receiving its standard input from a pipe, as in:
The operator can identify a container in three ways:
| Identifier type | Example value |
| --------------------- | ------------------------------------------------------------------ |
|:----------------------|:-------------------------------------------------------------------|
| UUID long identifier | "f78375b1c487e03c9438c729345e54db9d20cfa2ac1fc3494b6eb60872e74778" |
| UUID short identifier | "f78375b1c487" |
| Name | "evil_ptolemy" |
@@ -686,29 +687,29 @@ parent group.
The operator can also adjust the performance parameters of the
container:
| Option | Description |
| -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------- |
| `-m`, `--memory=""` | Memory limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. Minimum is 4M. |
| `--memory-swap=""` | Total memory limit (memory + swap, format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. |
| `--memory-reservation=""` | Memory soft limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. |
| `--kernel-memory=""` | Kernel memory limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. Minimum is 4M. |
| `-c`, `--cpu-shares=0` | CPU shares (relative weight) |
| `--cpus=0.000` | Number of CPUs. Number is a fractional number. 0.000 means no limit. |
| `--cpu-period=0` | Limit the CPU CFS (Completely Fair Scheduler) period |
| `--cpuset-cpus=""` | CPUs in which to allow execution (0-3, 0,1) |
| `--cpuset-mems=""` | Memory nodes (MEMs) in which to allow execution (0-3, 0,1). Only effective on NUMA systems. |
| `--cpu-quota=0` | Limit the CPU CFS (Completely Fair Scheduler) quota |
| `--cpu-rt-period=0` | Limit the CPU real-time period. In microseconds. Requires parent cgroups be set and cannot be higher than parent. Also check rtprio ulimits. |
| `--cpu-rt-runtime=0` | Limit the CPU real-time runtime. In microseconds. Requires parent cgroups be set and cannot be higher than parent. Also check rtprio ulimits. |
| `--blkio-weight=0` | Block IO weight (relative weight) accepts a weight value between 10 and 1000. |
| `--blkio-weight-device=""` | Block IO weight (relative device weight, format: `DEVICE_NAME:WEIGHT`) |
| `--device-read-bps=""` | Limit read rate from a device (format: `<device-path>:<number>[<unit>]`). Number is a positive integer. Unit can be one of `kb`, `mb`, or `gb`. |
| `--device-write-bps=""` | Limit write rate to a device (format: `<device-path>:<number>[<unit>]`). Number is a positive integer. Unit can be one of `kb`, `mb`, or `gb`. |
| `--device-read-iops="" ` | Limit read rate (IO per second) from a device (format: `<device-path>:<number>`). Number is a positive integer. |
| `--device-write-iops="" ` | Limit write rate (IO per second) to a device (format: `<device-path>:<number>`). Number is a positive integer. |
| `--oom-kill-disable=false` | Whether to disable OOM Killer for the container or not. |
| `--oom-score-adj=0` | Tune container's OOM preferences (-1000 to 1000) |
| `--memory-swappiness=""` | Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. |
| Option | Description |
|:---------------------------|:-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `-m`, `--memory=""` | Memory limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. Minimum is 4M. |
| `--memory-swap=""` | Total memory limit (memory + swap, format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. |
| `--memory-reservation=""` | Memory soft limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. |
| `--kernel-memory=""` | Kernel memory limit (format: `<number>[<unit>]`). Number is a positive integer. Unit can be one of `b`, `k`, `m`, or `g`. Minimum is 4M. |
| `-c`, `--cpu-shares=0` | CPU shares (relative weight) |
| `--cpus=0.000` | Number of CPUs. Number is a fractional number. 0.000 means no limit. |
| `--cpu-period=0` | Limit the CPU CFS (Completely Fair Scheduler) period |
| `--cpuset-cpus=""` | CPUs in which to allow execution (0-3, 0,1) |
| `--cpuset-mems=""` | Memory nodes (MEMs) in which to allow execution (0-3, 0,1). Only effective on NUMA systems. |
| `--cpu-quota=0` | Limit the CPU CFS (Completely Fair Scheduler) quota |
| `--cpu-rt-period=0` | Limit the CPU real-time period. In microseconds. Requires parent cgroups be set and cannot be higher than parent. Also check rtprio ulimits. |
| `--cpu-rt-runtime=0` | Limit the CPU real-time runtime. In microseconds. Requires parent cgroups be set and cannot be higher than parent. Also check rtprio ulimits. |
| `--blkio-weight=0` | Block IO weight (relative weight) accepts a weight value between 10 and 1000. |
| `--blkio-weight-device=""` | Block IO weight (relative device weight, format: `DEVICE_NAME:WEIGHT`) |
| `--device-read-bps=""` | Limit read rate from a device (format: `<device-path>:<number>[<unit>]`). Number is a positive integer. Unit can be one of `kb`, `mb`, or `gb`. |
| `--device-write-bps=""` | Limit write rate to a device (format: `<device-path>:<number>[<unit>]`). Number is a positive integer. Unit can be one of `kb`, `mb`, or `gb`. |
| `--device-read-iops="" ` | Limit read rate (IO per second) from a device (format: `<device-path>:<number>`). Number is a positive integer. |
| `--device-write-iops="" ` | Limit write rate (IO per second) to a device (format: `<device-path>:<number>`). Number is a positive integer. |
| `--oom-kill-disable=false` | Whether to disable OOM Killer for the container or not. |
| `--oom-score-adj=0` | Tune container's OOM preferences (-1000 to 1000) |
| `--memory-swappiness=""` | Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100. |
| `--shm-size=""` | Size of `/dev/shm`. The format is `<number><unit>`. `number` must be greater than `0`. Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes), or `g` (gigabytes). If you omit the unit, the system uses bytes. If you omit the size entirely, the system uses `64m`. |
### User memory constraints
@@ -1123,7 +1124,7 @@ by default a container is not allowed to access any devices, but a
the documentation on [cgroups devices](https://www.kernel.org/doc/Documentation/cgroup-v1/devices.txt)).
When the operator executes `docker run --privileged`, Docker will enable
to access to all devices on the host as well as set some configuration
access to all devices on the host as well as set some configuration
in AppArmor or SELinux to allow the container nearly all the same access to the
host as processes running outside containers on the host. Additional
information about running with `--privileged` is available on the
@@ -1158,7 +1159,7 @@ list of capabilities that are kept. The following table lists the Linux capabili
options which are allowed by default and can be dropped.
| Capability Key | Capability Description |
| ---------------- | ----------------------------------------------------------------------------------------------------------------------------- |
|:-----------------|:------------------------------------------------------------------------------------------------------------------------------|
| SETPCAP | Modify process capabilities. |
| MKNOD | Create special files using mknod(2). |
| AUDIT_WRITE | Write records to kernel auditing log. |
@@ -1176,31 +1177,31 @@ options which are allowed by default and can be dropped.
The next table shows the capabilities which are not granted by default and may be added.
| Capability Key | Capability Description |
| ---------------- | ----------------------------------------------------------------------------------------------------------------------------- |
| SYS_MODULE | Load and unload kernel modules. |
| SYS_RAWIO | Perform I/O port operations (iopl(2) and ioperm(2)). |
| SYS_PACCT | Use acct(2), switch process accounting on or off. |
| SYS_ADMIN | Perform a range of system administration operations. |
| SYS_NICE | Raise process nice value (nice(2), setpriority(2)) and change the nice value for arbitrary processes. |
| SYS_RESOURCE | Override resource Limits. |
| SYS_TIME | Set system clock (settimeofday(2), stime(2), adjtimex(2)); set real-time (hardware) clock. |
| SYS_TTY_CONFIG | Use vhangup(2); employ various privileged ioctl(2) operations on virtual terminals. |
| AUDIT_CONTROL | Enable and disable kernel auditing; change auditing filter rules; retrieve auditing status and filtering rules. |
| MAC_OVERRIDE | Allow MAC configuration or state changes. Implemented for the Smack LSM. |
| MAC_ADMIN | Override Mandatory Access Control (MAC). Implemented for the Smack Linux Security Module (LSM). |
| NET_ADMIN | Perform various network-related operations. |
| SYSLOG | Perform privileged syslog(2) operations. |
| DAC_READ_SEARCH | Bypass file read permission checks and directory read and execute permission checks. |
| LINUX_IMMUTABLE | Set the FS_APPEND_FL and FS_IMMUTABLE_FL i-node flags. |
| NET_BROADCAST | Make socket broadcasts, and listen to multicasts. |
| IPC_LOCK | Lock memory (mlock(2), mlockall(2), mmap(2), shmctl(2)). |
| IPC_OWNER | Bypass permission checks for operations on System V IPC objects. |
| SYS_PTRACE | Trace arbitrary processes using ptrace(2). |
| SYS_BOOT | Use reboot(2) and kexec_load(2), reboot and load a new kernel for later execution. |
| LEASE | Establish leases on arbitrary files (see fcntl(2)). |
| WAKE_ALARM | Trigger something that will wake up the system. |
| BLOCK_SUSPEND | Employ features that can block system suspend. |
| Capability Key | Capability Description |
|:----------------|:----------------------------------------------------------------------------------------------------------------|
| SYS_MODULE | Load and unload kernel modules. |
| SYS_RAWIO | Perform I/O port operations (iopl(2) and ioperm(2)). |
| SYS_PACCT | Use acct(2), switch process accounting on or off. |
| SYS_ADMIN | Perform a range of system administration operations. |
| SYS_NICE | Raise process nice value (nice(2), setpriority(2)) and change the nice value for arbitrary processes. |
| SYS_RESOURCE | Override resource Limits. |
| SYS_TIME | Set system clock (settimeofday(2), stime(2), adjtimex(2)); set real-time (hardware) clock. |
| SYS_TTY_CONFIG | Use vhangup(2); employ various privileged ioctl(2) operations on virtual terminals. |
| AUDIT_CONTROL | Enable and disable kernel auditing; change auditing filter rules; retrieve auditing status and filtering rules. |
| MAC_OVERRIDE | Allow MAC configuration or state changes. Implemented for the Smack LSM. |
| MAC_ADMIN | Override Mandatory Access Control (MAC). Implemented for the Smack Linux Security Module (LSM). |
| NET_ADMIN | Perform various network-related operations. |
| SYSLOG | Perform privileged syslog(2) operations. |
| DAC_READ_SEARCH | Bypass file read permission checks and directory read and execute permission checks. |
| LINUX_IMMUTABLE | Set the FS_APPEND_FL and FS_IMMUTABLE_FL i-node flags. |
| NET_BROADCAST | Make socket broadcasts, and listen to multicasts. |
| IPC_LOCK | Lock memory (mlock(2), mlockall(2), mmap(2), shmctl(2)). |
| IPC_OWNER | Bypass permission checks for operations on System V IPC objects. |
| SYS_PTRACE | Trace arbitrary processes using ptrace(2). |
| SYS_BOOT | Use reboot(2) and kexec_load(2), reboot and load a new kernel for later execution. |
| LEASE | Establish leases on arbitrary files (see fcntl(2)). |
| WAKE_ALARM | Trigger something that will wake up the system. |
| BLOCK_SUSPEND | Employ features that can block system suspend. |
Further reference information is available on the [capabilities(7) - Linux man page](http://man7.org/linux/man-pages/man7/capabilities.7.html)
@@ -1252,7 +1253,7 @@ the `--log-driver=VALUE` with the `docker run` command to configure the
container's logging driver. The following options are supported:
| Driver | Description |
| ----------- | ----------------------------------------------------------------------------------------------------------------------------- |
|:------------|:------------------------------------------------------------------------------------------------------------------------------|
| `none` | Disables any logging for the container. `docker logs` won't be available with this driver. |
| `json-file` | Default logging driver for Docker. Writes JSON messages to file. No logging options are supported for this driver. |
| `syslog` | Syslog logging driver for Docker. Writes log messages to syslog. |
@@ -1398,12 +1399,12 @@ container.
The following environment variables are set for Linux containers:
| Variable | Value |
| -------- | ----- |
| `HOME` | Set based on the value of `USER` |
| `HOSTNAME` | The hostname associated with the container |
| `PATH` | Includes popular directories, such as `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin` |
| `TERM` | `xterm` if the container is allocated a pseudo-TTY |
| Variable | Value |
|:-----------|:-----------------------------------------------------------------------------------------------------|
| `HOME` | Set based on the value of `USER` |
| `HOSTNAME` | The hostname associated with the container |
| `PATH` | Includes popular directories, such as `/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin` |
| `TERM` | `xterm` if the container is allocated a pseudo-TTY |
Additionally, the operator can **set any environment variable** in the
@@ -161,21 +161,18 @@ A service has the following fields:
only specify the container port to be exposed. These ports can be
mapped on runtime hosts at the operator's discretion.
</dd>
<dt>
WorkingDir <code>string</code>
</dt>
<dd>
Working directory inside the service containers.
</dd>
<dt>
User <code>string</code>
</dt>
<dd>
Username or UID (format: <code>&lt;name|uid&gt;[:&lt;group|gid&gt;]</code>).
</dd>
<dt>
Networks <code>[]string</code>
</dt>
+1 -1
View File
@@ -192,7 +192,7 @@ $ sudo dockerd --add-runtime runc=runc --add-runtime custom=/usr/local/bin/my-ru
Default ulimits for containers.
**--disable-legacy-registry**=*true*|*false*
Disable contacting legacy registries
Disable contacting legacy registries. Default is `true`.
**--dns**=""
Force Docker to use specific DNS servers
+1 -1
View File
@@ -31,7 +31,7 @@ func (cli *Client) ContainerWait(ctx context.Context, containerID string, condit
}
resultC := make(chan container.ContainerWaitOKBody)
errC := make(chan error)
errC := make(chan error, 1)
query := url.Values{}
query.Set("condition", string(condition))
+8 -6
View File
@@ -20,13 +20,15 @@ func (cli *Client) Ping(ctx context.Context) (types.Ping, error) {
}
defer ensureReaderClosed(serverResp)
ping.APIVersion = serverResp.header.Get("API-Version")
if serverResp.header != nil {
ping.APIVersion = serverResp.header.Get("API-Version")
if serverResp.header.Get("Docker-Experimental") == "true" {
ping.Experimental = true
if serverResp.header.Get("Docker-Experimental") == "true" {
ping.Experimental = true
}
ping.OSType = serverResp.header.Get("OSType")
}
ping.OSType = serverResp.header.Get("OSType")
return ping, nil
err = cli.checkResponseErr(serverResp)
return ping, err
}
+46 -31
View File
@@ -24,6 +24,7 @@ type serverResponse struct {
body io.ReadCloser
header http.Header
statusCode int
reqURL *url.URL
}
// head sends an http request to the docker API using the method HEAD.
@@ -118,11 +119,18 @@ func (cli *Client) sendRequest(ctx context.Context, method, path string, query u
if err != nil {
return serverResponse{}, err
}
return cli.doRequest(ctx, req)
resp, err := cli.doRequest(ctx, req)
if err != nil {
return resp, err
}
if err := cli.checkResponseErr(resp); err != nil {
return resp, err
}
return resp, nil
}
func (cli *Client) doRequest(ctx context.Context, req *http.Request) (serverResponse, error) {
serverResp := serverResponse{statusCode: -1}
serverResp := serverResponse{statusCode: -1, reqURL: req.URL}
resp, err := ctxhttp.Do(ctx, cli.client, req)
if err != nil {
@@ -179,37 +187,44 @@ func (cli *Client) doRequest(ctx context.Context, req *http.Request) (serverResp
if resp != nil {
serverResp.statusCode = resp.StatusCode
serverResp.body = resp.Body
serverResp.header = resp.Header
}
if serverResp.statusCode < 200 || serverResp.statusCode >= 400 {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return serverResp, err
}
if len(body) == 0 {
return serverResp, fmt.Errorf("Error: request returned %s for API route and version %s, check if the server supports the requested API version", http.StatusText(serverResp.statusCode), req.URL)
}
var errorMessage string
if (cli.version == "" || versions.GreaterThan(cli.version, "1.23")) &&
resp.Header.Get("Content-Type") == "application/json" {
var errorResponse types.ErrorResponse
if err := json.Unmarshal(body, &errorResponse); err != nil {
return serverResp, fmt.Errorf("Error reading JSON: %v", err)
}
errorMessage = errorResponse.Message
} else {
errorMessage = string(body)
}
return serverResp, fmt.Errorf("Error response from daemon: %s", strings.TrimSpace(errorMessage))
}
serverResp.body = resp.Body
serverResp.header = resp.Header
return serverResp, nil
}
func (cli *Client) checkResponseErr(serverResp serverResponse) error {
if serverResp.statusCode >= 200 && serverResp.statusCode < 400 {
return nil
}
body, err := ioutil.ReadAll(serverResp.body)
if err != nil {
return err
}
if len(body) == 0 {
return fmt.Errorf("Error: request returned %s for API route and version %s, check if the server supports the requested API version", http.StatusText(serverResp.statusCode), serverResp.reqURL)
}
var ct string
if serverResp.header != nil {
ct = serverResp.header.Get("Content-Type")
}
var errorMessage string
if (cli.version == "" || versions.GreaterThan(cli.version, "1.23")) && ct == "application/json" {
var errorResponse types.ErrorResponse
if err := json.Unmarshal(body, &errorResponse); err != nil {
return fmt.Errorf("Error reading JSON: %v", err)
}
errorMessage = errorResponse.Message
} else {
errorMessage = string(body)
}
return fmt.Errorf("Error response from daemon: %s", strings.TrimSpace(errorMessage))
}
func (cli *Client) addHeaders(req *http.Request, headers headers) *http.Request {
// Add CLI Config's HTTP Headers BEFORE we set the Docker headers
// then the user can't change OUR headers
@@ -239,9 +254,9 @@ func encodeData(data interface{}) (*bytes.Buffer, error) {
}
func ensureReaderClosed(response serverResponse) {
if body := response.body; body != nil {
if response.body != nil {
// Drain up to 512 bytes and close the body to let the Transport reuse the connection
io.CopyN(ioutil.Discard, body, 512)
io.CopyN(ioutil.Discard, response.body, 512)
response.body.Close()
}
}
+7 -5
View File
@@ -39,7 +39,7 @@ func (cli *Client) ServiceCreate(ctx context.Context, service swarm.ServiceSpec,
service.TaskTemplate.ContainerSpec.Image = img
}
// add platforms that are compatible with the service
service.TaskTemplate.Placement = updateServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
service.TaskTemplate.Placement = setServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
}
}
var response types.ServiceCreateResponse
@@ -86,13 +86,15 @@ func imageWithTagString(image string) string {
return ""
}
// updateServicePlatforms updates the Platforms in swarm.Placement to list
// all compatible platforms for the service, as found in distributionInspect
// and returns a pointer to the new or updated swarm.Placement struct
func updateServicePlatforms(placement *swarm.Placement, distributionInspect registrytypes.DistributionInspect) *swarm.Placement {
// setServicePlatforms sets Platforms in swarm.Placement to list all
// compatible platforms for the service, as found in distributionInspect
// and returns a pointer to the new or updated swarm.Placement struct.
func setServicePlatforms(placement *swarm.Placement, distributionInspect registrytypes.DistributionInspect) *swarm.Placement {
if placement == nil {
placement = &swarm.Placement{}
}
// reset any existing listed platforms
placement.Platforms = []swarm.Platform{}
for _, p := range distributionInspect.Platforms {
placement.Platforms = append(placement.Platforms, swarm.Platform{
Architecture: p.Architecture,
+1 -1
View File
@@ -51,7 +51,7 @@ func (cli *Client) ServiceUpdate(ctx context.Context, serviceID string, version
service.TaskTemplate.ContainerSpec.Image = img
}
// add platforms that are compatible with the service
service.TaskTemplate.Placement = updateServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
service.TaskTemplate.Placement = setServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
}
}
+4
View File
@@ -151,6 +151,10 @@ func (m *MountPoint) Setup(mountLabel string, rootUID, rootGID int) (path string
if err == nil {
if label.RelabelNeeded(m.Mode) {
if err = label.Relabel(m.Source, mountLabel, label.IsShared(m.Mode)); err != nil {
if err == syscall.ENOTSUP {
err = nil
return
}
path = ""
err = errors.Wrapf(err, "error setting label on mount source '%s'", m.Source)
return
-11
View File
@@ -90,17 +90,6 @@ RUN cd /usr/local/lvm2 \
&& make install_device-mapper
# See https://git.fedorahosted.org/cgit/lvm2.git/tree/INSTALL
# Configure the container for OSX cross compilation
ENV OSX_SDK MacOSX10.11.sdk
ENV OSX_CROSS_COMMIT a9317c18a3a457ca0a657f08cc4d0d43c6cf8953
RUN set -x \
&& export OSXCROSS_PATH="/osxcross" \
&& git clone https://github.com/tpoechtrager/osxcross.git $OSXCROSS_PATH \
&& ( cd $OSXCROSS_PATH && git checkout -q $OSX_CROSS_COMMIT) \
&& curl -sSL https://s3.dockerproject.org/darwin/v2/${OSX_SDK}.tar.xz -o "${OSXCROSS_PATH}/tarballs/${OSX_SDK}.tar.xz" \
&& UNATTENDED=yes OSX_VERSION_MIN=10.6 ${OSXCROSS_PATH}/build.sh
ENV PATH /osxcross/target/bin:$PATH
# Install seccomp: the version shipped upstream is too old
ENV SECCOMP_VERSION 2.3.2
RUN set -x \
+1 -1
View File
@@ -1 +1 @@
17.06.0-ce
17.06.1-ce-rc1
@@ -41,7 +41,7 @@ func DebugRequestMiddleware(handler func(ctx context.Context, w http.ResponseWri
var postForm map[string]interface{}
if err := json.Unmarshal(b, &postForm); err == nil {
maskSecretKeys(postForm)
maskSecretKeys(postForm, r.RequestURI)
formStr, errMarshal := json.Marshal(postForm)
if errMarshal == nil {
logrus.Debugf("form data: %s", string(formStr))
@@ -54,13 +54,22 @@ func DebugRequestMiddleware(handler func(ctx context.Context, w http.ResponseWri
}
}
func maskSecretKeys(inp interface{}) {
func maskSecretKeys(inp interface{}, path string) {
// Remove any query string from the path
idx := strings.Index(path, "?")
if idx != -1 {
path = path[:idx]
}
// Remove trailing / characters
path = strings.TrimRight(path, "/")
if arr, ok := inp.([]interface{}); ok {
for _, f := range arr {
maskSecretKeys(f)
maskSecretKeys(f, path)
}
return
}
if form, ok := inp.(map[string]interface{}); ok {
loop0:
for k, v := range form {
@@ -70,7 +79,16 @@ func maskSecretKeys(inp interface{}) {
continue loop0
}
}
maskSecretKeys(v)
maskSecretKeys(v, path)
}
// Route-specific redactions
if strings.HasSuffix(path, "/secrets/create") {
for k := range form {
if k == "Data" {
form[k] = "*****"
}
}
}
}
}
@@ -0,0 +1,58 @@
package middleware
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestMaskSecretKeys(t *testing.T) {
tests := []struct {
path string
input map[string]interface{}
expected map[string]interface{}
}{
{
path: "/v1.30/secrets/create",
input: map[string]interface{}{"Data": "foo", "Name": "name", "Labels": map[string]interface{}{}},
expected: map[string]interface{}{"Data": "*****", "Name": "name", "Labels": map[string]interface{}{}},
},
{
path: "/v1.30/secrets/create//",
input: map[string]interface{}{"Data": "foo", "Name": "name", "Labels": map[string]interface{}{}},
expected: map[string]interface{}{"Data": "*****", "Name": "name", "Labels": map[string]interface{}{}},
},
{
path: "/secrets/create?key=val",
input: map[string]interface{}{"Data": "foo", "Name": "name", "Labels": map[string]interface{}{}},
expected: map[string]interface{}{"Data": "*****", "Name": "name", "Labels": map[string]interface{}{}},
},
{
path: "/v1.30/some/other/path",
input: map[string]interface{}{
"password": "pass",
"other": map[string]interface{}{
"secret": "secret",
"jointoken": "jointoken",
"unlockkey": "unlockkey",
"signingcakey": "signingcakey",
},
},
expected: map[string]interface{}{
"password": "*****",
"other": map[string]interface{}{
"secret": "*****",
"jointoken": "*****",
"unlockkey": "*****",
"signingcakey": "*****",
},
},
},
}
for _, testcase := range tests {
maskSecretKeys(testcase.input, testcase.path)
assert.Equal(t, testcase.expected, testcase.input)
}
}
+21
View File
@@ -7352,6 +7352,16 @@ paths:
AdvertiseAddr:
description: "Externally reachable address advertised to other nodes. This can either be an address/port combination in the form `192.168.1.1:4567`, or an interface followed by a port number, like `eth0:4567`. If the port number is omitted, the port number from the listen address is used. If `AdvertiseAddr` is not specified, it will be automatically detected when possible."
type: "string"
DataPathAddr:
description: |
Address or interface to use for data path traffic (format: `<ip|interface>`), for example, `192.168.1.1`,
or an interface, like `eth0`. If `DataPathAddr` is unspecified, the same address as `AdvertiseAddr`
is used.
The `DataPathAddr` specifies the address that global scope network drivers will publish towards other
nodes in order to reach the containers running on this node. Using this parameter it is possible to
separate the container data traffic from the management traffic of the cluster.
type: "string"
ForceNewCluster:
description: "Force creation of a new swarm."
type: "boolean"
@@ -7400,6 +7410,17 @@ paths:
type: "string"
AdvertiseAddr:
description: "Externally reachable address advertised to other nodes. This can either be an address/port combination in the form `192.168.1.1:4567`, or an interface followed by a port number, like `eth0:4567`. If the port number is omitted, the port number from the listen address is used. If `AdvertiseAddr` is not specified, it will be automatically detected when possible."
type: "string"
DataPathAddr:
description: |
Address or interface to use for data path traffic (format: `<ip|interface>`), for example, `192.168.1.1`,
or an interface, like `eth0`. If `DataPathAddr` is unspecified, the same address as `AdvertiseAddr`
is used.
The `DataPathAddr` specifies the address that global scope network drivers will publish towards other
nodes in order to reach the containers running on this node. Using this parameter it is possible to
separate the container data traffic from the management traffic of the cluster.
type: "string"
RemoteAddrs:
description: "Addresses of manager nodes already participating in the swarm."
+7 -4
View File
@@ -30,9 +30,10 @@ type pathCache interface {
// copyInfo is a data object which stores the metadata about each source file in
// a copyInstruction
type copyInfo struct {
root string
path string
hash string
root string
path string
hash string
noDecompress bool
}
func newCopyInfoFromSource(source builder.Source, path string, hash string) copyInfo {
@@ -118,7 +119,9 @@ func (o *copier) getCopyInfoForSourcePath(orig string) ([]copyInfo, error) {
o.tmpPaths = append(o.tmpPaths, remote.Root())
hash, err := remote.Hash(path)
return newCopyInfos(newCopyInfoFromSource(remote, path, hash)), err
ci := newCopyInfoFromSource(remote, path, hash)
ci.noDecompress = true // data from http shouldn't be extracted even on ADD
return newCopyInfos(ci), err
}
// Cleanup removes any temporary directories created as part of downloading
@@ -156,6 +156,11 @@ func add(req dispatchRequest) error {
return err
}
copyInstruction.allowLocalDecompression = true
for _, ci := range copyInstruction.infos {
if ci.noDecompress {
copyInstruction.allowLocalDecompression = false
}
}
return req.builder.performCopy(req.state, copyInstruction)
}
+8 -6
View File
@@ -20,13 +20,15 @@ func (cli *Client) Ping(ctx context.Context) (types.Ping, error) {
}
defer ensureReaderClosed(serverResp)
ping.APIVersion = serverResp.header.Get("API-Version")
if serverResp.header != nil {
ping.APIVersion = serverResp.header.Get("API-Version")
if serverResp.header.Get("Docker-Experimental") == "true" {
ping.Experimental = true
if serverResp.header.Get("Docker-Experimental") == "true" {
ping.Experimental = true
}
ping.OSType = serverResp.header.Get("OSType")
}
ping.OSType = serverResp.header.Get("OSType")
return ping, nil
err = cli.checkResponseErr(serverResp)
return ping, err
}
+82
View File
@@ -0,0 +1,82 @@
package client
import (
"errors"
"io/ioutil"
"net/http"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"golang.org/x/net/context"
)
// TestPingFail tests that when a server sends a non-successful response that we
// can still grab API details, when set.
// Some of this is just excercising the code paths to make sure there are no
// panics.
func TestPingFail(t *testing.T) {
var withHeader bool
client := &Client{
client: newMockClient(func(req *http.Request) (*http.Response, error) {
resp := &http.Response{StatusCode: http.StatusInternalServerError}
if withHeader {
resp.Header = http.Header{}
resp.Header.Set("API-Version", "awesome")
resp.Header.Set("Docker-Experimental", "true")
}
resp.Body = ioutil.NopCloser(strings.NewReader("some error with the server"))
return resp, nil
}),
}
ping, err := client.Ping(context.Background())
assert.Error(t, err)
assert.Equal(t, false, ping.Experimental)
assert.Equal(t, "", ping.APIVersion)
withHeader = true
ping2, err := client.Ping(context.Background())
assert.Error(t, err)
assert.Equal(t, true, ping2.Experimental)
assert.Equal(t, "awesome", ping2.APIVersion)
}
// TestPingWithError tests the case where there is a protocol error in the ping.
// This test is mostly just testing that there are no panics in this code path.
func TestPingWithError(t *testing.T) {
client := &Client{
client: newMockClient(func(req *http.Request) (*http.Response, error) {
resp := &http.Response{StatusCode: http.StatusInternalServerError}
resp.Header = http.Header{}
resp.Header.Set("API-Version", "awesome")
resp.Header.Set("Docker-Experimental", "true")
resp.Body = ioutil.NopCloser(strings.NewReader("some error with the server"))
return resp, errors.New("some error")
}),
}
ping, err := client.Ping(context.Background())
assert.Error(t, err)
assert.Equal(t, false, ping.Experimental)
assert.Equal(t, "", ping.APIVersion)
}
// TestPingSuccess tests that we are able to get the expected API headers/ping
// details on success.
func TestPingSuccess(t *testing.T) {
client := &Client{
client: newMockClient(func(req *http.Request) (*http.Response, error) {
resp := &http.Response{StatusCode: http.StatusInternalServerError}
resp.Header = http.Header{}
resp.Header.Set("API-Version", "awesome")
resp.Header.Set("Docker-Experimental", "true")
resp.Body = ioutil.NopCloser(strings.NewReader("some error with the server"))
return resp, nil
}),
}
ping, err := client.Ping(context.Background())
assert.Error(t, err)
assert.Equal(t, true, ping.Experimental)
assert.Equal(t, "awesome", ping.APIVersion)
}
+46 -31
View File
@@ -24,6 +24,7 @@ type serverResponse struct {
body io.ReadCloser
header http.Header
statusCode int
reqURL *url.URL
}
// head sends an http request to the docker API using the method HEAD.
@@ -118,11 +119,18 @@ func (cli *Client) sendRequest(ctx context.Context, method, path string, query u
if err != nil {
return serverResponse{}, err
}
return cli.doRequest(ctx, req)
resp, err := cli.doRequest(ctx, req)
if err != nil {
return resp, err
}
if err := cli.checkResponseErr(resp); err != nil {
return resp, err
}
return resp, nil
}
func (cli *Client) doRequest(ctx context.Context, req *http.Request) (serverResponse, error) {
serverResp := serverResponse{statusCode: -1}
serverResp := serverResponse{statusCode: -1, reqURL: req.URL}
resp, err := ctxhttp.Do(ctx, cli.client, req)
if err != nil {
@@ -179,37 +187,44 @@ func (cli *Client) doRequest(ctx context.Context, req *http.Request) (serverResp
if resp != nil {
serverResp.statusCode = resp.StatusCode
serverResp.body = resp.Body
serverResp.header = resp.Header
}
if serverResp.statusCode < 200 || serverResp.statusCode >= 400 {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return serverResp, err
}
if len(body) == 0 {
return serverResp, fmt.Errorf("Error: request returned %s for API route and version %s, check if the server supports the requested API version", http.StatusText(serverResp.statusCode), req.URL)
}
var errorMessage string
if (cli.version == "" || versions.GreaterThan(cli.version, "1.23")) &&
resp.Header.Get("Content-Type") == "application/json" {
var errorResponse types.ErrorResponse
if err := json.Unmarshal(body, &errorResponse); err != nil {
return serverResp, fmt.Errorf("Error reading JSON: %v", err)
}
errorMessage = errorResponse.Message
} else {
errorMessage = string(body)
}
return serverResp, fmt.Errorf("Error response from daemon: %s", strings.TrimSpace(errorMessage))
}
serverResp.body = resp.Body
serverResp.header = resp.Header
return serverResp, nil
}
func (cli *Client) checkResponseErr(serverResp serverResponse) error {
if serverResp.statusCode >= 200 && serverResp.statusCode < 400 {
return nil
}
body, err := ioutil.ReadAll(serverResp.body)
if err != nil {
return err
}
if len(body) == 0 {
return fmt.Errorf("Error: request returned %s for API route and version %s, check if the server supports the requested API version", http.StatusText(serverResp.statusCode), serverResp.reqURL)
}
var ct string
if serverResp.header != nil {
ct = serverResp.header.Get("Content-Type")
}
var errorMessage string
if (cli.version == "" || versions.GreaterThan(cli.version, "1.23")) && ct == "application/json" {
var errorResponse types.ErrorResponse
if err := json.Unmarshal(body, &errorResponse); err != nil {
return fmt.Errorf("Error reading JSON: %v", err)
}
errorMessage = errorResponse.Message
} else {
errorMessage = string(body)
}
return fmt.Errorf("Error response from daemon: %s", strings.TrimSpace(errorMessage))
}
func (cli *Client) addHeaders(req *http.Request, headers headers) *http.Request {
// Add CLI Config's HTTP Headers BEFORE we set the Docker headers
// then the user can't change OUR headers
@@ -239,9 +254,9 @@ func encodeData(data interface{}) (*bytes.Buffer, error) {
}
func ensureReaderClosed(response serverResponse) {
if body := response.body; body != nil {
if response.body != nil {
// Drain up to 512 bytes and close the body to let the Transport reuse the connection
io.CopyN(ioutil.Discard, body, 512)
io.CopyN(ioutil.Discard, response.body, 512)
response.body.Close()
}
}
+7 -5
View File
@@ -39,7 +39,7 @@ func (cli *Client) ServiceCreate(ctx context.Context, service swarm.ServiceSpec,
service.TaskTemplate.ContainerSpec.Image = img
}
// add platforms that are compatible with the service
service.TaskTemplate.Placement = updateServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
service.TaskTemplate.Placement = setServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
}
}
var response types.ServiceCreateResponse
@@ -86,13 +86,15 @@ func imageWithTagString(image string) string {
return ""
}
// updateServicePlatforms updates the Platforms in swarm.Placement to list
// all compatible platforms for the service, as found in distributionInspect
// and returns a pointer to the new or updated swarm.Placement struct
func updateServicePlatforms(placement *swarm.Placement, distributionInspect registrytypes.DistributionInspect) *swarm.Placement {
// setServicePlatforms sets Platforms in swarm.Placement to list all
// compatible platforms for the service, as found in distributionInspect
// and returns a pointer to the new or updated swarm.Placement struct.
func setServicePlatforms(placement *swarm.Placement, distributionInspect registrytypes.DistributionInspect) *swarm.Placement {
if placement == nil {
placement = &swarm.Placement{}
}
// reset any existing listed platforms
placement.Platforms = []swarm.Platform{}
for _, p := range distributionInspect.Platforms {
placement.Platforms = append(placement.Platforms, swarm.Platform{
Architecture: p.Architecture,
+1 -1
View File
@@ -51,7 +51,7 @@ func (cli *Client) ServiceUpdate(ctx context.Context, serviceID string, version
service.TaskTemplate.ContainerSpec.Image = img
}
// add platforms that are compatible with the service
service.TaskTemplate.Placement = updateServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
service.TaskTemplate.Placement = setServicePlatforms(service.TaskTemplate.Placement, distributionInspect)
}
}
@@ -1,2 +0,0 @@
Tianon Gravi <admwiggin@gmail.com> (@tianon)
Jessie Frazelle <jess@docker.com> (@jfrazelle)
File diff suppressed because it is too large Load Diff
@@ -1,409 +0,0 @@
# docker.fish - docker completions for fish shell
#
# This file is generated by gen_docker_fish_completions.py from:
# https://github.com/barnybug/docker-fish-completion
#
# To install the completions:
# mkdir -p ~/.config/fish/completions
# cp docker.fish ~/.config/fish/completions
#
# Completion supported:
# - parameters
# - commands
# - containers
# - images
# - repositories
function __fish_docker_no_subcommand --description 'Test if docker has yet to be given the subcommand'
for i in (commandline -opc)
if contains -- $i attach build commit cp create diff events exec export history images import info inspect kill load login logout logs pause port ps pull push rename restart rm rmi run save search start stop tag top unpause version wait stats
return 1
end
end
return 0
end
function __fish_print_docker_containers --description 'Print a list of docker containers' -a select
switch $select
case running
docker ps -a --no-trunc --filter status=running --format "{{.ID}}\n{{.Names}}" | tr ',' '\n'
case stopped
docker ps -a --no-trunc --filter status=exited --format "{{.ID}}\n{{.Names}}" | tr ',' '\n'
case all
docker ps -a --no-trunc --format "{{.ID}}\n{{.Names}}" | tr ',' '\n'
end
end
function __fish_print_docker_images --description 'Print a list of docker images'
docker images --format "{{.Repository}}:{{.Tag}}" | command grep -v '<none>'
end
function __fish_print_docker_repositories --description 'Print a list of docker repositories'
docker images --format "{{.Repository}}" | command grep -v '<none>' | command sort | command uniq
end
# common options
complete -c docker -f -n '__fish_docker_no_subcommand' -l api-cors-header -d "Set CORS headers in the Engine API. Default is cors disabled"
complete -c docker -f -n '__fish_docker_no_subcommand' -s b -l bridge -d 'Attach containers to a pre-existing network bridge'
complete -c docker -f -n '__fish_docker_no_subcommand' -l bip -d "Use this CIDR notation address for the network bridge's IP, not compatible with -b"
complete -c docker -f -n '__fish_docker_no_subcommand' -s D -l debug -d 'Enable debug mode'
complete -c docker -f -n '__fish_docker_no_subcommand' -s d -l daemon -d 'Enable daemon mode'
complete -c docker -f -n '__fish_docker_no_subcommand' -l dns -d 'Force Docker to use specific DNS servers'
complete -c docker -f -n '__fish_docker_no_subcommand' -l dns-opt -d 'Force Docker to use specific DNS options'
complete -c docker -f -n '__fish_docker_no_subcommand' -l dns-search -d 'Force Docker to use specific DNS search domains'
complete -c docker -f -n '__fish_docker_no_subcommand' -l exec-opt -d 'Set runtime execution options'
complete -c docker -f -n '__fish_docker_no_subcommand' -l fixed-cidr -d 'IPv4 subnet for fixed IPs (e.g. 10.20.0.0/16)'
complete -c docker -f -n '__fish_docker_no_subcommand' -l fixed-cidr-v6 -d 'IPv6 subnet for fixed IPs (e.g.: 2001:a02b/48)'
complete -c docker -f -n '__fish_docker_no_subcommand' -s G -l group -d 'Group to assign the unix socket specified by -H when running in daemon mode'
complete -c docker -f -n '__fish_docker_no_subcommand' -s g -l graph -d 'Path to use as the root of the Docker runtime'
complete -c docker -f -n '__fish_docker_no_subcommand' -s H -l host -d 'The socket(s) to bind to in daemon mode or connect to in client mode, specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.'
complete -c docker -f -n '__fish_docker_no_subcommand' -s h -l help -d 'Print usage'
complete -c docker -f -n '__fish_docker_no_subcommand' -l icc -d 'Allow unrestricted inter-container and Docker daemon host communication'
complete -c docker -f -n '__fish_docker_no_subcommand' -l insecure-registry -d 'Enable insecure communication with specified registries (no certificate verification for HTTPS and enable HTTP fallback) (e.g., localhost:5000 or 10.20.0.0/16)'
complete -c docker -f -n '__fish_docker_no_subcommand' -l ip -d 'Default IP address to use when binding container ports'
complete -c docker -f -n '__fish_docker_no_subcommand' -l ip-forward -d 'Enable net.ipv4.ip_forward and IPv6 forwarding if --fixed-cidr-v6 is defined. IPv6 forwarding may interfere with your existing IPv6 configuration when using Router Advertisement.'
complete -c docker -f -n '__fish_docker_no_subcommand' -l ip-masq -d "Enable IP masquerading for bridge's IP range"
complete -c docker -f -n '__fish_docker_no_subcommand' -l iptables -d "Enable Docker's addition of iptables rules"
complete -c docker -f -n '__fish_docker_no_subcommand' -l ipv6 -d 'Enable IPv6 networking'
complete -c docker -f -n '__fish_docker_no_subcommand' -s l -l log-level -d 'Set the logging level ("debug", "info", "warn", "error", "fatal")'
complete -c docker -f -n '__fish_docker_no_subcommand' -l label -d 'Set key=value labels to the daemon (displayed in `docker info`)'
complete -c docker -f -n '__fish_docker_no_subcommand' -l mtu -d 'Set the containers network MTU'
complete -c docker -f -n '__fish_docker_no_subcommand' -s p -l pidfile -d 'Path to use for daemon PID file'
complete -c docker -f -n '__fish_docker_no_subcommand' -l registry-mirror -d 'Specify a preferred Docker registry mirror'
complete -c docker -f -n '__fish_docker_no_subcommand' -s s -l storage-driver -d 'Force the Docker runtime to use a specific storage driver'
complete -c docker -f -n '__fish_docker_no_subcommand' -l selinux-enabled -d 'Enable selinux support. SELinux does not presently support the BTRFS storage driver'
complete -c docker -f -n '__fish_docker_no_subcommand' -l storage-opt -d 'Set storage driver options'
complete -c docker -f -n '__fish_docker_no_subcommand' -l tls -d 'Use TLS; implied by --tlsverify'
complete -c docker -f -n '__fish_docker_no_subcommand' -l tlscacert -d 'Trust only remotes providing a certificate signed by the CA given here'
complete -c docker -f -n '__fish_docker_no_subcommand' -l tlscert -d 'Path to TLS certificate file'
complete -c docker -f -n '__fish_docker_no_subcommand' -l tlskey -d 'Path to TLS key file'
complete -c docker -f -n '__fish_docker_no_subcommand' -l tlsverify -d 'Use TLS and verify the remote (daemon: verify client, client: verify daemon)'
complete -c docker -f -n '__fish_docker_no_subcommand' -s v -l version -d 'Print version information and quit'
# subcommands
# attach
complete -c docker -f -n '__fish_docker_no_subcommand' -a attach -d 'Attach to a running container'
complete -c docker -A -f -n '__fish_seen_subcommand_from attach' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from attach' -l no-stdin -d 'Do not attach STDIN'
complete -c docker -A -f -n '__fish_seen_subcommand_from attach' -l sig-proxy -d 'Proxy all received signals to the process (non-TTY mode only). SIGCHLD, SIGKILL, and SIGSTOP are not proxied.'
complete -c docker -A -f -n '__fish_seen_subcommand_from attach' -a '(__fish_print_docker_containers running)' -d "Container"
# build
complete -c docker -f -n '__fish_docker_no_subcommand' -a build -d 'Build an image from a Dockerfile'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -s f -l file -d "Name of the Dockerfile(Default is 'Dockerfile' at context root)"
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -l force-rm -d 'Always remove intermediate containers, even after unsuccessful builds'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -l no-cache -d 'Do not use cache when building the image'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -l pull -d 'Always attempt to pull a newer version of the image'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -s q -l quiet -d 'Suppress the build output and print image ID on success'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -l rm -d 'Remove intermediate containers after a successful build'
complete -c docker -A -f -n '__fish_seen_subcommand_from build' -s t -l tag -d 'Repository name (and optionally a tag) to be applied to the resulting image in case of success'
# commit
complete -c docker -f -n '__fish_docker_no_subcommand' -a commit -d "Create a new image from a container's changes"
complete -c docker -A -f -n '__fish_seen_subcommand_from commit' -s a -l author -d 'Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")'
complete -c docker -A -f -n '__fish_seen_subcommand_from commit' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from commit' -s m -l message -d 'Commit message'
complete -c docker -A -f -n '__fish_seen_subcommand_from commit' -s p -l pause -d 'Pause container during commit'
complete -c docker -A -f -n '__fish_seen_subcommand_from commit' -a '(__fish_print_docker_containers all)' -d "Container"
# cp
complete -c docker -f -n '__fish_docker_no_subcommand' -a cp -d "Copy files/folders between a container and the local filesystem"
complete -c docker -A -f -n '__fish_seen_subcommand_from cp' -l help -d 'Print usage'
# create
complete -c docker -f -n '__fish_docker_no_subcommand' -a create -d 'Create a new container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s a -l attach -d 'Attach to STDIN, STDOUT or STDERR.'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l add-host -d 'Add a custom host-to-IP mapping (host:ip)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l cpu-shares -d 'CPU shares (relative weight)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l cap-add -d 'Add Linux capabilities'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l cap-drop -d 'Drop Linux capabilities'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l cidfile -d 'Write the container ID to the file'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l cpuset -d 'CPUs in which to allow execution (0-3, 0,1)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l device -d 'Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l device-cgroup-rule -d 'Add a rule to the cgroup allowed devices list (e.g. --device-cgroup-rule="c 13:37 rwm")'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l dns -d 'Set custom DNS servers'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l dns-opt -d "Set custom DNS options (Use --dns-opt='' if you don't wish to set options)"
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l dns-search -d "Set custom DNS search domains (Use --dns-search=. if you don't wish to set the search domain)"
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s e -l env -d 'Set environment variables'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l entrypoint -d 'Overwrite the default ENTRYPOINT of the image'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l env-file -d 'Read in a line delimited file of environment variables'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l expose -d 'Expose a port or a range of ports (e.g. --expose=3300-3310) from the container without publishing it to your host'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l group-add -d 'Add additional groups to run as'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s h -l hostname -d 'Container host name'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s i -l interactive -d 'Keep STDIN open even if not attached'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l ipc -d 'Default is to create a private IPC namespace (POSIX SysV IPC) for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l link -d 'Add link to another container in the form of <name|id>:alias'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s m -l memory -d 'Memory limit (format: <number>[<unit>], where unit = b, k, m or g)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l mac-address -d 'Container MAC address (e.g., 92:d0:c6:0a:29:33)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l memory-swap -d "Total memory usage (memory + swap), set '-1' to disable swap (format: <number>[<unit>], where unit = b, k, m or g)"
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l mount -d 'Attach a filesystem mount to the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l name -d 'Assign a name to the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l net -d 'Set the Network mode for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s P -l publish-all -d 'Publish all exposed ports to random ports on the host interfaces'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s p -l publish -d "Publish a container's port to the host"
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l pid -d 'Default is to create a private PID namespace for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l privileged -d 'Give extended privileges to this container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l read-only -d "Mount the container's root filesystem as read only"
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l restart -d 'Restart policy to apply when a container exits (no, on-failure[:max-retry], always)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l security-opt -d 'Security Options'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s t -l tty -d 'Allocate a pseudo-TTY'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s u -l user -d 'Username or UID'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s v -l volume -d 'Bind mount a volume (e.g., from the host: -v /host:/container, from Docker: -v /container)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l volumes-from -d 'Mount volumes from the specified container(s)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -s w -l workdir -d 'Working directory inside the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -a '(__fish_print_docker_images)' -d "Image"
# diff
complete -c docker -f -n '__fish_docker_no_subcommand' -a diff -d "Inspect changes on a container's filesystem"
complete -c docker -A -f -n '__fish_seen_subcommand_from diff' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from diff' -a '(__fish_print_docker_containers all)' -d "Container"
# events
complete -c docker -f -n '__fish_docker_no_subcommand' -a events -d 'Get real time events from the server'
complete -c docker -A -f -n '__fish_seen_subcommand_from events' -s f -l filter -d "Provide filter values (i.e., 'event=stop')"
complete -c docker -A -f -n '__fish_seen_subcommand_from events' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from events' -l since -d 'Show all events created since timestamp'
complete -c docker -A -f -n '__fish_seen_subcommand_from events' -l until -d 'Stream events until this timestamp'
complete -c docker -A -f -n '__fish_seen_subcommand_from events' -l format -d 'Format the output using the given go template'
# exec
complete -c docker -f -n '__fish_docker_no_subcommand' -a exec -d 'Run a command in a running container'
complete -c docker -A -f -n '__fish_seen_subcommand_from exec' -s d -l detach -d 'Detached mode: run command in the background'
complete -c docker -A -f -n '__fish_seen_subcommand_from exec' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from exec' -s i -l interactive -d 'Keep STDIN open even if not attached'
complete -c docker -A -f -n '__fish_seen_subcommand_from exec' -s t -l tty -d 'Allocate a pseudo-TTY'
complete -c docker -A -f -n '__fish_seen_subcommand_from exec' -a '(__fish_print_docker_containers running)' -d "Container"
# export
complete -c docker -f -n '__fish_docker_no_subcommand' -a export -d 'Stream the contents of a container as a tar archive'
complete -c docker -A -f -n '__fish_seen_subcommand_from export' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from export' -a '(__fish_print_docker_containers all)' -d "Container"
# history
complete -c docker -f -n '__fish_docker_no_subcommand' -a history -d 'Show the history of an image'
complete -c docker -A -f -n '__fish_seen_subcommand_from history' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from history' -l no-trunc -d "Don't truncate output"
complete -c docker -A -f -n '__fish_seen_subcommand_from history' -s q -l quiet -d 'Only show numeric IDs'
complete -c docker -A -f -n '__fish_seen_subcommand_from history' -a '(__fish_print_docker_images)' -d "Image"
# images
complete -c docker -f -n '__fish_docker_no_subcommand' -a images -d 'List images'
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -s a -l all -d 'Show all images (by default filter out the intermediate image layers)'
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -s f -l filter -d "Provide filter values (i.e., 'dangling=true')"
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -l no-trunc -d "Don't truncate output"
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -s q -l quiet -d 'Only show numeric IDs'
complete -c docker -A -f -n '__fish_seen_subcommand_from images' -a '(__fish_print_docker_repositories)' -d "Repository"
# import
complete -c docker -f -n '__fish_docker_no_subcommand' -a import -d 'Create a new filesystem image from the contents of a tarball'
complete -c docker -A -f -n '__fish_seen_subcommand_from import' -l help -d 'Print usage'
# info
complete -c docker -f -n '__fish_docker_no_subcommand' -a info -d 'Display system-wide information'
complete -c docker -A -f -n '__fish_seen_subcommand_from info' -s f -l format -d 'Format the output using the given go template'
complete -c docker -A -f -n '__fish_seen_subcommand_from info' -l help -d 'Print usage'
# inspect
complete -c docker -f -n '__fish_docker_no_subcommand' -a inspect -d 'Return low-level information on a container or image'
complete -c docker -A -f -n '__fish_seen_subcommand_from inspect' -s f -l format -d 'Format the output using the given go template.'
complete -c docker -A -f -n '__fish_seen_subcommand_from inspect' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from inspect' -s s -l size -d 'Display total file sizes if the type is container.'
complete -c docker -A -f -n '__fish_seen_subcommand_from inspect' -a '(__fish_print_docker_images)' -d "Image"
complete -c docker -A -f -n '__fish_seen_subcommand_from inspect' -a '(__fish_print_docker_containers all)' -d "Container"
# kill
complete -c docker -f -n '__fish_docker_no_subcommand' -a kill -d 'Kill a running container'
complete -c docker -A -f -n '__fish_seen_subcommand_from kill' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from kill' -s s -l signal -d 'Signal to send to the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from kill' -a '(__fish_print_docker_containers running)' -d "Container"
# load
complete -c docker -f -n '__fish_docker_no_subcommand' -a load -d 'Load an image from a tar archive'
complete -c docker -A -f -n '__fish_seen_subcommand_from load' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from load' -s i -l input -d 'Read from a tar archive file, instead of STDIN'
# login
complete -c docker -f -n '__fish_docker_no_subcommand' -a login -d 'Log in to a Docker registry server'
complete -c docker -A -f -n '__fish_seen_subcommand_from login' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from login' -s p -l password -d 'Password'
complete -c docker -A -f -n '__fish_seen_subcommand_from login' -s u -l username -d 'Username'
# logout
complete -c docker -f -n '__fish_docker_no_subcommand' -a logout -d 'Log out from a Docker registry server'
# logs
complete -c docker -f -n '__fish_docker_no_subcommand' -a logs -d 'Fetch the logs of a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -s f -l follow -d 'Follow log output'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -s t -l timestamps -d 'Show timestamps'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -l since -d 'Show logs since timestamp'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -l tail -d 'Output the specified number of lines at the end of logs (defaults to all logs)'
complete -c docker -A -f -n '__fish_seen_subcommand_from logs' -a '(__fish_print_docker_containers running)' -d "Container"
# port
complete -c docker -f -n '__fish_docker_no_subcommand' -a port -d 'Lookup the public-facing port that is NAT-ed to PRIVATE_PORT'
complete -c docker -A -f -n '__fish_seen_subcommand_from port' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from port' -a '(__fish_print_docker_containers running)' -d "Container"
# pause
complete -c docker -f -n '__fish_docker_no_subcommand' -a pause -d 'Pause all processes within a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from pause' -a '(__fish_print_docker_containers running)' -d "Container"
# ps
complete -c docker -f -n '__fish_docker_no_subcommand' -a ps -d 'List containers'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s a -l all -d 'Show all containers. Only running containers are shown by default.'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -l before -d 'Show only container created before Id or Name, include non-running ones.'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s f -l filter -d 'Provide filter values. Valid filters:'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s l -l latest -d 'Show only the latest created container, include non-running ones.'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s n -d 'Show n last created containers, include non-running ones.'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -l no-trunc -d "Don't truncate output"
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s q -l quiet -d 'Only display numeric IDs'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -s s -l size -d 'Display total file sizes'
complete -c docker -A -f -n '__fish_seen_subcommand_from ps' -l since -d 'Show only containers created since Id or Name, include non-running ones.'
# pull
complete -c docker -f -n '__fish_docker_no_subcommand' -a pull -d 'Pull an image or a repository from a Docker registry server'
complete -c docker -A -f -n '__fish_seen_subcommand_from pull' -s a -l all-tags -d 'Download all tagged images in the repository'
complete -c docker -A -f -n '__fish_seen_subcommand_from pull' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from pull' -a '(__fish_print_docker_images)' -d "Image"
complete -c docker -A -f -n '__fish_seen_subcommand_from pull' -a '(__fish_print_docker_repositories)' -d "Repository"
# push
complete -c docker -f -n '__fish_docker_no_subcommand' -a push -d 'Push an image or a repository to a Docker registry server'
complete -c docker -A -f -n '__fish_seen_subcommand_from push' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from push' -a '(__fish_print_docker_images)' -d "Image"
complete -c docker -A -f -n '__fish_seen_subcommand_from push' -a '(__fish_print_docker_repositories)' -d "Repository"
# rename
complete -c docker -f -n '__fish_docker_no_subcommand' -a rename -d 'Rename an existing container'
# restart
complete -c docker -f -n '__fish_docker_no_subcommand' -a restart -d 'Restart a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from restart' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from restart' -s t -l time -d 'Number of seconds to try to stop for before killing the container. Once killed it will then be restarted. Default is 10 seconds.'
complete -c docker -A -f -n '__fish_seen_subcommand_from restart' -a '(__fish_print_docker_containers running)' -d "Container"
# rm
complete -c docker -f -n '__fish_docker_no_subcommand' -a rm -d 'Remove one or more containers'
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -s f -l force -d 'Force the removal of a running container (uses SIGKILL)'
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -s l -l link -d 'Remove the specified link and not the underlying container'
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -s v -l volumes -d 'Remove the volumes associated with the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -a '(__fish_print_docker_containers stopped)' -d "Container"
complete -c docker -A -f -n '__fish_seen_subcommand_from rm' -s f -l force -a '(__fish_print_docker_containers all)' -d "Container"
# rmi
complete -c docker -f -n '__fish_docker_no_subcommand' -a rmi -d 'Remove one or more images'
complete -c docker -A -f -n '__fish_seen_subcommand_from rmi' -s f -l force -d 'Force removal of the image'
complete -c docker -A -f -n '__fish_seen_subcommand_from rmi' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from rmi' -l no-prune -d 'Do not delete untagged parents'
complete -c docker -A -f -n '__fish_seen_subcommand_from rmi' -a '(__fish_print_docker_images)' -d "Image"
# run
complete -c docker -f -n '__fish_docker_no_subcommand' -a run -d 'Run a command in a new container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s a -l attach -d 'Attach to STDIN, STDOUT or STDERR.'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l add-host -d 'Add a custom host-to-IP mapping (host:ip)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s c -l cpu-shares -d 'CPU shares (relative weight)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l cap-add -d 'Add Linux capabilities'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l cap-drop -d 'Drop Linux capabilities'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l cidfile -d 'Write the container ID to the file'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l cpuset -d 'CPUs in which to allow execution (0-3, 0,1)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s d -l detach -d 'Detached mode: run the container in the background and print the new container ID'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l device -d 'Add a host device to the container (e.g. --device=/dev/sdc:/dev/xvdc:rwm)'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l device-cgroup-rule -d 'Add a rule to the cgroup allowed devices list (e.g. --device-cgroup-rule="c 13:37 rwm")'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l dns -d 'Set custom DNS servers'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l dns-opt -d "Set custom DNS options (Use --dns-opt='' if you don't wish to set options)"
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l dns-search -d "Set custom DNS search domains (Use --dns-search=. if you don't wish to set the search domain)"
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s e -l env -d 'Set environment variables'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l entrypoint -d 'Overwrite the default ENTRYPOINT of the image'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l env-file -d 'Read in a line delimited file of environment variables'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l expose -d 'Expose a port or a range of ports (e.g. --expose=3300-3310) from the container without publishing it to your host'
complete -c docker -A -f -n '__fish_seen_subcommand_from create' -l group-add -d 'Add additional groups to run as'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s h -l hostname -d 'Container host name'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s i -l interactive -d 'Keep STDIN open even if not attached'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l ipc -d 'Default is to create a private IPC namespace (POSIX SysV IPC) for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l link -d 'Add link to another container in the form of <name|id>:alias'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s m -l memory -d 'Memory limit (format: <number>[<unit>], where unit = b, k, m or g)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l mac-address -d 'Container MAC address (e.g., 92:d0:c6:0a:29:33)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l memory-swap -d "Total memory usage (memory + swap), set '-1' to disable swap (format: <number>[<unit>], where unit = b, k, m or g)"
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l mount -d 'Attach a filesystem mount to the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l name -d 'Assign a name to the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l net -d 'Set the Network mode for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s P -l publish-all -d 'Publish all exposed ports to random ports on the host interfaces'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s p -l publish -d "Publish a container's port to the host"
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l pid -d 'Default is to create a private PID namespace for the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l privileged -d 'Give extended privileges to this container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l read-only -d "Mount the container's root filesystem as read only"
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l restart -d 'Restart policy to apply when a container exits (no, on-failure[:max-retry], always)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l rm -d 'Automatically remove the container when it exits (incompatible with -d)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l security-opt -d 'Security Options'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l sig-proxy -d 'Proxy received signals to the process (non-TTY mode only). SIGCHLD, SIGSTOP, and SIGKILL are not proxied.'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l stop-signal -d 'Signal to kill a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s t -l tty -d 'Allocate a pseudo-TTY'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s u -l user -d 'Username or UID'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l tmpfs -d 'Mount tmpfs on a directory'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s v -l volume -d 'Bind mount a volume (e.g., from the host: -v /host:/container, from Docker: -v /container)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -l volumes-from -d 'Mount volumes from the specified container(s)'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -s w -l workdir -d 'Working directory inside the container'
complete -c docker -A -f -n '__fish_seen_subcommand_from run' -a '(__fish_print_docker_images)' -d "Image"
# save
complete -c docker -f -n '__fish_docker_no_subcommand' -a save -d 'Save an image to a tar archive'
complete -c docker -A -f -n '__fish_seen_subcommand_from save' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from save' -s o -l output -d 'Write to an file, instead of STDOUT'
complete -c docker -A -f -n '__fish_seen_subcommand_from save' -a '(__fish_print_docker_images)' -d "Image"
# search
complete -c docker -f -n '__fish_docker_no_subcommand' -a search -d 'Search for an image on the registry (defaults to the Docker Hub)'
complete -c docker -A -f -n '__fish_seen_subcommand_from search' -l automated -d 'Only show automated builds'
complete -c docker -A -f -n '__fish_seen_subcommand_from search' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from search' -l no-trunc -d "Don't truncate output"
complete -c docker -A -f -n '__fish_seen_subcommand_from search' -s s -l stars -d 'Only displays with at least x stars'
# start
complete -c docker -f -n '__fish_docker_no_subcommand' -a start -d 'Start a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from start' -s a -l attach -d "Attach container's STDOUT and STDERR and forward all signals to the process"
complete -c docker -A -f -n '__fish_seen_subcommand_from start' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from start' -s i -l interactive -d "Attach container's STDIN"
complete -c docker -A -f -n '__fish_seen_subcommand_from start' -a '(__fish_print_docker_containers stopped)' -d "Container"
# stats
complete -c docker -f -n '__fish_docker_no_subcommand' -a stats -d "Display a live stream of one or more containers' resource usage statistics"
complete -c docker -A -f -n '__fish_seen_subcommand_from stats' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from stats' -l no-stream -d 'Disable streaming stats and only pull the first result'
complete -c docker -A -f -n '__fish_seen_subcommand_from stats' -a '(__fish_print_docker_containers running)' -d "Container"
# stop
complete -c docker -f -n '__fish_docker_no_subcommand' -a stop -d 'Stop a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from stop' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from stop' -s t -l time -d 'Number of seconds to wait for the container to stop before killing it. Default is 10 seconds.'
complete -c docker -A -f -n '__fish_seen_subcommand_from stop' -a '(__fish_print_docker_containers running)' -d "Container"
# tag
complete -c docker -f -n '__fish_docker_no_subcommand' -a tag -d 'Tag an image into a repository'
complete -c docker -A -f -n '__fish_seen_subcommand_from tag' -s f -l force -d 'Force'
complete -c docker -A -f -n '__fish_seen_subcommand_from tag' -l help -d 'Print usage'
# top
complete -c docker -f -n '__fish_docker_no_subcommand' -a top -d 'Lookup the running processes of a container'
complete -c docker -A -f -n '__fish_seen_subcommand_from top' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from top' -a '(__fish_print_docker_containers running)' -d "Container"
# unpause
complete -c docker -f -n '__fish_docker_no_subcommand' -a unpause -d 'Unpause a paused container'
complete -c docker -A -f -n '__fish_seen_subcommand_from unpause' -a '(__fish_print_docker_containers running)' -d "Container"
# version
complete -c docker -f -n '__fish_docker_no_subcommand' -a version -d 'Show the Docker version information'
complete -c docker -A -f -n '__fish_seen_subcommand_from version' -s f -l format -d 'Format the output using the given go template'
complete -c docker -A -f -n '__fish_seen_subcommand_from version' -l help -d 'Print usage'
# wait
complete -c docker -f -n '__fish_docker_no_subcommand' -a wait -d 'Block until a container stops, then print its exit code'
complete -c docker -A -f -n '__fish_seen_subcommand_from wait' -l help -d 'Print usage'
complete -c docker -A -f -n '__fish_seen_subcommand_from wait' -a '(__fish_print_docker_containers running)' -d "Container"
@@ -1 +0,0 @@
See https://github.com/samneirinck/posh-docker
@@ -1,2 +0,0 @@
Tianon Gravi <admwiggin@gmail.com> (@tianon)
Jessie Frazelle <jess@docker.com> (@jfrazelle)
File diff suppressed because it is too large Load Diff
+4 -4
View File
@@ -68,17 +68,17 @@ func getMemoryResources(config containertypes.Resources) *specs.LinuxMemory {
memory := specs.LinuxMemory{}
if config.Memory > 0 {
limit := uint64(config.Memory)
limit := config.Memory
memory.Limit = &limit
}
if config.MemoryReservation > 0 {
reservation := uint64(config.MemoryReservation)
reservation := config.MemoryReservation
memory.Reservation = &reservation
}
if config.MemorySwap > 0 {
swap := uint64(config.MemorySwap)
swap := config.MemorySwap
memory.Swap = &swap
}
@@ -88,7 +88,7 @@ func getMemoryResources(config containertypes.Resources) *specs.LinuxMemory {
}
if config.KernelMemory != 0 {
kernelMemory := uint64(config.KernelMemory)
kernelMemory := config.KernelMemory
memory.Kernel = &kernelMemory
}
+4 -2
View File
@@ -186,7 +186,7 @@ func monitor(d *Daemon, c *container.Container, stop chan struct{}, probe probe)
logrus.Debugf("Running health check for container %s ...", c.ID)
startTime := time.Now()
ctx, cancelProbe := context.WithTimeout(context.Background(), probeTimeout)
results := make(chan *types.HealthcheckResult)
results := make(chan *types.HealthcheckResult, 1)
go func() {
healthChecksCounter.Inc()
result, err := probe.run(ctx, d, c)
@@ -209,8 +209,10 @@ func monitor(d *Daemon, c *container.Container, stop chan struct{}, probe probe)
select {
case <-stop:
logrus.Debugf("Stop healthcheck monitoring for container %s (received while probing)", c.ID)
// Stop timeout and kill probe, but don't wait for probe to exit.
cancelProbe()
// Wait for probe to exit (it might take a while to respond to the TERM
// signal and we don't want dying probes to pile up).
<-results
return
case result := <-results:
handleProbeResult(d, c, result, stop)
@@ -112,9 +112,10 @@ func (s *journald) Log(msg *logger.Message) error {
}
line := string(msg.Line)
source := msg.Source
logger.PutMessage(msg)
if msg.Source == "stderr" {
if source == "stderr" {
return journal.Send(line, journal.PriErr, vars)
}
return journal.Send(line, journal.PriInfo, vars)
@@ -7,6 +7,7 @@ import (
"bytes"
"encoding/json"
"fmt"
"io"
"strconv"
"sync"
@@ -15,6 +16,7 @@ import (
"github.com/docker/docker/daemon/logger/loggerutils"
"github.com/docker/docker/pkg/jsonlog"
"github.com/docker/go-units"
"github.com/pkg/errors"
)
// Name is the name of the file that the jsonlogger logs to.
@@ -22,12 +24,13 @@ const Name = "json-file"
// JSONFileLogger is Logger implementation for default Docker logging.
type JSONFileLogger struct {
buf *bytes.Buffer
writer *loggerutils.RotateFileWriter
mu sync.Mutex
readers map[*logger.LogWatcher]struct{} // stores the active log followers
extra []byte // json-encoded extra attributes
extra []byte // json-encoded extra attributes
mu sync.RWMutex
buf *bytes.Buffer // avoids allocating a new buffer on each call to `Log()`
closed bool
writer *loggerutils.RotateFileWriter
readers map[*logger.LogWatcher]struct{} // stores the active log followers
}
func init() {
@@ -90,33 +93,45 @@ func New(info logger.Info) (logger.Logger, error) {
// Log converts logger.Message to jsonlog.JSONLog and serializes it to file.
func (l *JSONFileLogger) Log(msg *logger.Message) error {
l.mu.Lock()
err := writeMessageBuf(l.writer, msg, l.extra, l.buf)
l.buf.Reset()
l.mu.Unlock()
return err
}
func writeMessageBuf(w io.Writer, m *logger.Message, extra json.RawMessage, buf *bytes.Buffer) error {
if err := marshalMessage(m, extra, buf); err != nil {
logger.PutMessage(m)
return err
}
logger.PutMessage(m)
if _, err := w.Write(buf.Bytes()); err != nil {
return errors.Wrap(err, "error writing log entry")
}
return nil
}
func marshalMessage(msg *logger.Message, extra json.RawMessage, buf *bytes.Buffer) error {
timestamp, err := jsonlog.FastTimeMarshalJSON(msg.Timestamp)
if err != nil {
return err
}
l.mu.Lock()
logline := msg.Line
logLine := msg.Line
if !msg.Partial {
logline = append(msg.Line, '\n')
logLine = append(msg.Line, '\n')
}
err = (&jsonlog.JSONLogs{
Log: logline,
Log: logLine,
Stream: msg.Source,
Created: timestamp,
RawAttrs: l.extra,
}).MarshalJSONBuf(l.buf)
logger.PutMessage(msg)
RawAttrs: extra,
}).MarshalJSONBuf(buf)
if err != nil {
l.mu.Unlock()
return err
return errors.Wrap(err, "error writing log message to buffer")
}
l.buf.WriteByte('\n')
_, err = l.writer.Write(l.buf.Bytes())
l.buf.Reset()
l.mu.Unlock()
return err
err = buf.WriteByte('\n')
return errors.Wrap(err, "error finalizing log buffer")
}
// ValidateLogOpt looks for json specific log options max-file & max-size.
@@ -3,7 +3,6 @@ package jsonfilelog
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io"
"os"
@@ -18,6 +17,7 @@ import (
"github.com/docker/docker/pkg/ioutils"
"github.com/docker/docker/pkg/jsonlog"
"github.com/docker/docker/pkg/tailfile"
"github.com/pkg/errors"
)
const maxJSONDecodeRetry = 20000
@@ -48,10 +48,11 @@ func (l *JSONFileLogger) ReadLogs(config logger.ReadConfig) *logger.LogWatcher {
func (l *JSONFileLogger) readLogs(logWatcher *logger.LogWatcher, config logger.ReadConfig) {
defer close(logWatcher.Msg)
// lock so the read stream doesn't get corrupted due to rotations or other log data written while we read
// lock so the read stream doesn't get corrupted due to rotations or other log data written while we open these files
// This will block writes!!!
l.mu.Lock()
l.mu.RLock()
// TODO it would be nice to move a lot of this reader implementation to the rotate logger object
pth := l.writer.LogPath()
var files []io.ReadSeeker
for i := l.writer.MaxFiles(); i > 1; i-- {
@@ -59,25 +60,36 @@ func (l *JSONFileLogger) readLogs(logWatcher *logger.LogWatcher, config logger.R
if err != nil {
if !os.IsNotExist(err) {
logWatcher.Err <- err
break
l.mu.RUnlock()
return
}
continue
}
defer f.Close()
files = append(files, f)
}
latestFile, err := os.Open(pth)
if err != nil {
logWatcher.Err <- err
l.mu.Unlock()
logWatcher.Err <- errors.Wrap(err, "error opening latest log file")
l.mu.RUnlock()
return
}
defer latestFile.Close()
latestChunk, err := newSectionReader(latestFile)
// Now we have the reader sectioned, all fd's opened, we can unlock.
// New writes/rotates will not affect seeking through these files
l.mu.RUnlock()
if err != nil {
logWatcher.Err <- err
return
}
if config.Tail != 0 {
tailer := ioutils.MultiReadSeeker(append(files, latestFile)...)
tailer := ioutils.MultiReadSeeker(append(files, latestChunk)...)
tailFile(tailer, logWatcher, config.Tail, config.Since)
}
@@ -89,19 +101,14 @@ func (l *JSONFileLogger) readLogs(logWatcher *logger.LogWatcher, config logger.R
}
if !config.Follow || l.closed {
l.mu.Unlock()
return
}
if config.Tail >= 0 {
latestFile.Seek(0, os.SEEK_END)
}
notifyRotate := l.writer.NotifyRotate()
defer l.writer.NotifyRotateEvict(notifyRotate)
l.mu.Lock()
l.readers[logWatcher] = struct{}{}
l.mu.Unlock()
followLogs(latestFile, logWatcher, notifyRotate, config.Since)
@@ -111,6 +118,16 @@ func (l *JSONFileLogger) readLogs(logWatcher *logger.LogWatcher, config logger.R
l.mu.Unlock()
}
func newSectionReader(f *os.File) (*io.SectionReader, error) {
// seek to the end to get the size
// we'll leave this at the end of the file since section reader does not advance the reader
size, err := f.Seek(0, os.SEEK_END)
if err != nil {
return nil, errors.Wrap(err, "error getting current file size")
}
return io.NewSectionReader(f, 0, size), nil
}
func tailFile(f io.ReadSeeker, logWatcher *logger.LogWatcher, tail int, since time.Time) {
var rdr io.Reader
rdr = f
@@ -133,8 +133,9 @@ func New(info logger.Info) (logger.Logger, error) {
func (s *syslogger) Log(msg *logger.Message) error {
line := string(msg.Line)
source := msg.Source
logger.PutMessage(msg)
if msg.Source == "stderr" {
if source == "stderr" {
return s.writer.Err(line)
}
return s.writer.Info(line)
-30
View File
@@ -1,30 +0,0 @@
# The non-reference docs have been moved!
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
The documentation for Docker Engine has been merged into
[the general documentation repo](https://github.com/docker/docker.github.io).
See the [README](https://github.com/docker/docker.github.io/blob/master/README.md)
for instructions on contributing to and building the documentation.
If you'd like to edit the current published version of the Engine docs,
do it in the master branch here:
https://github.com/docker/docker.github.io/tree/master/engine
If you need to document the functionality of an upcoming Engine release,
use the `vnext-engine` branch:
https://github.com/docker/docker.github.io/tree/vnext-engine/engine
The reference docs have been left in docker/docker (this repo), which remains
the place to edit them.
The docs in the general repo are open-source and we appreciate
your feedback and pull requests!
@@ -29,6 +29,8 @@ keywords: "API, Docker, rcli, REST, documentation"
generate and rotate to a new CA certificate/key pair.
* `POST /service/create` and `POST /services/(id or name)/update` now take the field `Platforms` as part of the service `Placement`, allowing to specify platforms supported by the service.
* `POST /containers/(name)/wait` now accepts a `condition` query parameter to indicate which state change condition to wait for. Also, response headers are now returned immediately to acknowledge that the server has registered a wait callback for the client.
* `POST /swarm/init` now accepts a `DataPathAddr` property to set the IP-address or network interface to use for data traffic
* `POST /swarm/join` now accepts a `DataPathAddr` property to set the IP-address or network interface to use for data traffic
## v1.29 API changes
-321
View File
@@ -1,321 +0,0 @@
---
aliases: ["/engine/misc/deprecated/"]
title: "Deprecated Engine Features"
description: "Deprecated Features."
keywords: "docker, documentation, about, technology, deprecate"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Deprecated Engine Features
The following list of features are deprecated in Engine.
To learn more about Docker Engine's deprecation policy,
see [Feature Deprecation Policy](https://docs.docker.com/engine/#feature-deprecation-policy).
### Asynchronous `service create` and `service update`
**Deprecated In Release: v17.05.0**
**Disabled by default in release: v17.09**
Docker 17.05.0 added an optional `--detach=false` option to make the
`docker service create` and `docker service update` work synchronously. This
option will be enable by default in Docker 17.09, at which point the `--detach`
flag can be used to use the previous (asynchronous) behavior.
### `-g` and `--graph` flags on `dockerd`
**Deprecated In Release: v17.05.0**
The `-g` or `--graph` flag for the `dockerd` or `docker daemon` command was
used to indicate the directory in which to store persistent data and resource
configuration and has been replaced with the more descriptive `--data-root`
flag.
These flags were added before Docker 1.0, so will not be _removed_, only
_hidden_, to discourage their use.
### Top-level network properties in NetworkSettings
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
When inspecting a container, `NetworkSettings` contains top-level information
about the default ("bridge") network;
`EndpointID`, `Gateway`, `GlobalIPv6Address`, `GlobalIPv6PrefixLen`, `IPAddress`,
`IPPrefixLen`, `IPv6Gateway`, and `MacAddress`.
These properties are deprecated in favor of per-network properties in
`NetworkSettings.Networks`. These properties were already "deprecated" in
docker 1.9, but kept around for backward compatibility.
Refer to [#17538](https://github.com/docker/docker/pull/17538) for further
information.
### `filter` param for `/images/json` endpoint
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
The `filter` param to filter the list of image by reference (name or name:tag) is now implemented as a regular filter, named `reference`.
### `repository:shortid` image references
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
`repository:shortid` syntax for referencing images is very little used, collides with tag references can be confused with digest references.
### `docker daemon` subcommand
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
The daemon is moved to a separate binary (`dockerd`), and should be used instead.
### Duplicate keys with conflicting values in engine labels
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
Duplicate keys with conflicting values have been deprecated. A warning is displayed
in the output, and an error will be returned in the future.
### `MAINTAINER` in Dockerfile
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
`MAINTAINER` was an early very limited form of `LABEL` which should be used instead.
### API calls without a version
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
API versions should be supplied to all API calls to ensure compatibility with
future Engine versions. Instead of just requesting, for example, the URL
`/containers/json`, you must now request `/v1.25/containers/json`.
### Backing filesystem without `d_type` support for overlay/overlay2
**Deprecated In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
**Target For Removal In Release: v17.12**
The overlay and overlay2 storage driver does not work as expected if the backing
filesystem does not support `d_type`. For example, XFS does not support `d_type`
if it is formatted with the `ftype=0` option.
Please also refer to [#27358](https://github.com/docker/docker/issues/27358) for
further information.
### Three arguments form in `docker import`
**Deprecated In Release: [v0.6.7](https://github.com/docker/docker/releases/tag/v0.6.7)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
The `docker import` command format `file|URL|- [REPOSITORY [TAG]]` is deprecated since November 2013. It's no more supported.
### `-h` shorthand for `--help`
**Deprecated In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
**Target For Removal In Release: v17.09**
The shorthand (`-h`) is less common than `--help` on Linux and cannot be used
on all subcommands (due to it conflicting with, e.g. `-h` / `--hostname` on
`docker create`). For this reason, the `-h` shorthand was not printed in the
"usage" output of subcommands, nor documented, and is now marked "deprecated".
### `-e` and `--email` flags on `docker login`
**Deprecated In Release: [v1.11.0](https://github.com/docker/docker/releases/tag/v1.11.0)**
**Removed In Release: [v17.06](https://github.com/docker/docker-ce/releases/tag/v17.06.0-ce)**
The docker login command is removing the ability to automatically register for an account with the target registry if the given username doesn't exist. Due to this change, the email flag is no longer required, and will be deprecated.
### Separator (`:`) of `--security-opt` flag on `docker run`
**Deprecated In Release: [v1.11.0](https://github.com/docker/docker/releases/tag/v1.11.0)**
**Target For Removal In Release: v17.06**
The flag `--security-opt` doesn't use the colon separator(`:`) anymore to divide keys and values, it uses the equal symbol(`=`) for consistency with other similar flags, like `--storage-opt`.
### `/containers/(id or name)/copy` endpoint
**Deprecated In Release: [v1.8.0](https://github.com/docker/docker/releases/tag/v1.8.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
The endpoint `/containers/(id or name)/copy` is deprecated in favor of `/containers/(id or name)/archive`.
### Ambiguous event fields in API
**Deprecated In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
The fields `ID`, `Status` and `From` in the events API have been deprecated in favor of a more rich structure.
See the events API documentation for the new format.
### `-f` flag on `docker tag`
**Deprecated In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
To make tagging consistent across the various `docker` commands, the `-f` flag on the `docker tag` command is deprecated. It is not longer necessary to specify `-f` to move a tag from one image to another. Nor will `docker` generate an error if the `-f` flag is missing and the specified tag is already in use.
### HostConfig at API container start
**Deprecated In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
Passing an `HostConfig` to `POST /containers/{name}/start` is deprecated in favor of
defining it at container creation (`POST /containers/create`).
### `--before` and `--since` flags on `docker ps`
**Deprecated In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
The `docker ps --before` and `docker ps --since` options are deprecated.
Use `docker ps --filter=before=...` and `docker ps --filter=since=...` instead.
### `--automated` and `--stars` flags on `docker search`
**Deprecated in Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
**Target For Removal In Release: v17.09**
The `docker search --automated` and `docker search --stars` options are deprecated.
Use `docker search --filter=is-automated=...` and `docker search --filter=stars=...` instead.
### Driver Specific Log Tags
**Deprecated In Release: [v1.9.0](https://github.com/docker/docker/releases/tag/v1.9.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
Log tags are now generated in a standard way across different logging drivers.
Because of which, the driver specific log tag options `syslog-tag`, `gelf-tag` and
`fluentd-tag` have been deprecated in favor of the generic `tag` option.
```bash
{% raw %}
docker --log-driver=syslog --log-opt tag="{{.ImageName}}/{{.Name}}/{{.ID}}"
{% endraw %}
```
### LXC built-in exec driver
**Deprecated In Release: [v1.8.0](https://github.com/docker/docker/releases/tag/v1.8.0)**
**Removed In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
The built-in LXC execution driver, the lxc-conf flag, and API fields have been removed.
### Old Command Line Options
**Deprecated In Release: [v1.8.0](https://github.com/docker/docker/releases/tag/v1.8.0)**
**Removed In Release: [v1.10.0](https://github.com/docker/docker/releases/tag/v1.10.0)**
The flags `-d` and `--daemon` are deprecated in favor of the `daemon` subcommand:
docker daemon -H ...
The following single-dash (`-opt`) variant of certain command line options
are deprecated and replaced with double-dash options (`--opt`):
docker attach -nostdin
docker attach -sig-proxy
docker build -no-cache
docker build -rm
docker commit -author
docker commit -run
docker events -since
docker history -notrunc
docker images -notrunc
docker inspect -format
docker ps -beforeId
docker ps -notrunc
docker ps -sinceId
docker rm -link
docker run -cidfile
docker run -dns
docker run -entrypoint
docker run -expose
docker run -link
docker run -lxc-conf
docker run -n
docker run -privileged
docker run -volumes-from
docker search -notrunc
docker search -stars
docker search -t
docker search -trusted
docker tag -force
The following double-dash options are deprecated and have no replacement:
docker run --cpuset
docker run --networking
docker ps --since-id
docker ps --before-id
docker search --trusted
**Deprecated In Release: [v1.5.0](https://github.com/docker/docker/releases/tag/v1.5.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
The single-dash (`-help`) was removed, in favor of the double-dash `--help`
docker -help
docker [COMMAND] -help
### `--run` flag on docker commit
**Deprecated In Release: [v0.10.0](https://github.com/docker/docker/releases/tag/v0.10.0)**
**Removed In Release: [v1.13.0](https://github.com/docker/docker/releases/tag/v1.13.0)**
The flag `--run` of the docker commit (and its short version `-run`) were deprecated in favor
of the `--changes` flag that allows to pass `Dockerfile` commands.
### Interacting with V1 registries
**Disabled By Default In Release: v17.06**
**Target For Removal In Release: v17.12**
Version 1.8.3 added a flag (`--disable-legacy-registry=false`) which prevents the
docker daemon from `pull`, `push`, and `login` operations against v1
registries. Though enabled by default, this signals the intent to deprecate
the v1 protocol.
Support for the v1 protocol to the public registry was removed in 1.13. Any
mirror configurations using v1 should be updated to use a
[v2 registry mirror](https://docs.docker.com/registry/recipes/mirror/).
### Docker Content Trust ENV passphrase variables name change
**Deprecated In Release: [v1.9.0](https://github.com/docker/docker/releases/tag/v1.9.0)**
**Removed In Release: [v1.12.0](https://github.com/docker/docker/releases/tag/v1.12.0)**
Since 1.9, Docker Content Trust Offline key has been renamed to Root key and the Tagging key has been renamed to Repository key. Due to this renaming, we're also changing the corresponding environment variables
- DOCKER_CONTENT_TRUST_OFFLINE_PASSPHRASE is now named DOCKER_CONTENT_TRUST_ROOT_PASSPHRASE
- DOCKER_CONTENT_TRUST_TAGGING_PASSPHRASE is now named DOCKER_CONTENT_TRUST_REPOSITORY_PASSPHRASE
### `--api-enable-cors` flag on dockerd
**Deprecated In Release: [v1.6.0](https://github.com/docker/docker/releases/tag/v1.6.0)**
**Target For Removal In Release: v17.09**
The flag `--api-enable-cors` is deprecated since v1.6.0. Use the flag
`--api-cors-header` instead.
-164
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@@ -1,164 +0,0 @@
---
description: Volume plugin for Amazon EBS
keywords: "API, Usage, plugins, documentation, developer, amazon, ebs, rexray, volume"
title: Volume plugin for Amazon EBS
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# A proof-of-concept Rexray plugin
In this example, a simple Rexray plugin will be created for the purposes of using
it on an Amazon EC2 instance with EBS. It is not meant to be a complete Rexray plugin.
The example source is available at [https://github.com/tiborvass/rexray-plugin](https://github.com/tiborvass/rexray-plugin).
To learn more about Rexray: [https://github.com/codedellemc/rexray](https://github.com/codedellemc/rexray)
## 1. Make a Docker image
The following is the Dockerfile used to containerize rexray.
```Dockerfile
FROM debian:jessie
RUN apt-get update && apt-get install -y --no-install-recommends wget ca-certificates
RUN wget https://dl.bintray.com/emccode/rexray/stable/0.6.4/rexray-Linux-x86_64-0.6.4.tar.gz -O rexray.tar.gz && tar -xvzf rexray.tar.gz -C /usr/bin && rm rexray.tar.gz
RUN mkdir -p /run/docker/plugins /var/lib/libstorage/volumes
ENTRYPOINT ["rexray"]
CMD ["--help"]
```
To build it you can run `image=$(cat Dockerfile | docker build -q -)` and `$image`
will reference the containerized rexray image.
## 2. Extract rootfs
```sh
$ TMPDIR=/tmp/rexray # for the purpose of this example
$ # create container without running it, to extract the rootfs from image
$ docker create --name rexray "$image"
$ # save the rootfs to a tar archive
$ docker export -o $TMPDIR/rexray.tar rexray
$ # extract rootfs from tar archive to a rootfs folder
$ ( mkdir -p $TMPDIR/rootfs; cd $TMPDIR/rootfs; tar xf ../rexray.tar )
```
## 3. Add plugin configuration
We have to put the following JSON to `$TMPDIR/config.json`:
```json
{
"Args": {
"Description": "",
"Name": "",
"Settable": null,
"Value": null
},
"Description": "A proof-of-concept EBS plugin (using rexray) for Docker",
"Documentation": "https://github.com/tiborvass/rexray-plugin",
"Entrypoint": [
"/usr/bin/rexray", "service", "start", "-f"
],
"Env": [
{
"Description": "",
"Name": "REXRAY_SERVICE",
"Settable": [
"value"
],
"Value": "ebs"
},
{
"Description": "",
"Name": "EBS_ACCESSKEY",
"Settable": [
"value"
],
"Value": ""
},
{
"Description": "",
"Name": "EBS_SECRETKEY",
"Settable": [
"value"
],
"Value": ""
}
],
"Interface": {
"Socket": "rexray.sock",
"Types": [
"docker.volumedriver/1.0"
]
},
"Linux": {
"AllowAllDevices": true,
"Capabilities": ["CAP_SYS_ADMIN"],
"Devices": null
},
"Mounts": [
{
"Source": "/dev",
"Destination": "/dev",
"Type": "bind",
"Options": ["rbind"]
}
],
"Network": {
"Type": "host"
},
"PropagatedMount": "/var/lib/libstorage/volumes",
"User": {},
"WorkDir": ""
}
```
Please note a couple of points:
- `PropagatedMount` is needed so that the docker daemon can see mounts done by the
rexray plugin from within the container, otherwise the docker daemon is not able
to mount a docker volume.
- The rexray plugin needs dynamic access to host devices. For that reason, we
have to give it access to all devices under `/dev` and set `AllowAllDevices` to
true for proper access.
- The user of this simple plugin can change only 3 settings: `REXRAY_SERVICE`,
`EBS_ACCESSKEY` and `EBS_SECRETKEY`. This is because of the reduced scope of this
plugin. Ideally other rexray parameters could also be set.
## 4. Create plugin
`docker plugin create tiborvass/rexray-plugin "$TMPDIR"` will create the plugin.
```sh
$ docker plugin ls
ID NAME DESCRIPTION ENABLED
2475a4bd0ca5 tiborvass/rexray-plugin:latest A rexray volume plugin for Docker false
```
## 5. Test plugin
```sh
$ docker plugin set tiborvass/rexray-plugin EBS_ACCESSKEY=$AWS_ACCESSKEY EBS_SECRETKEY=$AWS_SECRETKEY`
$ docker plugin enable tiborvass/rexray-plugin
$ docker volume create -d tiborvass/rexray-plugin my-ebs-volume
$ docker volume ls
DRIVER VOLUME NAME
tiborvass/rexray-plugin:latest my-ebs-volume
$ docker run --rm -v my-ebs-volume:/volume busybox sh -c 'echo bye > /volume/hi'
$ docker run --rm -v my-ebs-volume:/volume busybox cat /volume/hi
bye
```
## 6. Push plugin
First, ensure you are logged in with `docker login`. Then you can run:
`docker plugin push tiborvass/rexray-plugin` to push it like a regular docker
image to a registry, to make it available for others to install via
`docker plugin install tiborvass/rexray-plugin EBS_ACCESSKEY=$AWS_ACCESSKEY EBS_SECRETKEY=$AWS_SECRETKEY`.
-238
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@@ -1,238 +0,0 @@
---
title: "Plugin config"
description: "How develop and use a plugin with the managed plugin system"
keywords: "API, Usage, plugins, documentation, developer"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Plugin Config Version 1 of Plugin V2
This document outlines the format of the V0 plugin configuration. The plugin
config described herein was introduced in the Docker daemon in the [v1.12.0
release](https://github.com/docker/docker/commit/f37117045c5398fd3dca8016ea8ca0cb47e7312b).
Plugin configs describe the various constituents of a docker plugin. Plugin
configs can be serialized to JSON format with the following media types:
Config Type | Media Type
------------- | -------------
config | "application/vnd.docker.plugin.v1+json"
## *Config* Field Descriptions
Config provides the base accessible fields for working with V0 plugin format
in the registry.
- **`description`** *string*
description of the plugin
- **`documentation`** *string*
link to the documentation about the plugin
- **`interface`** *PluginInterface*
interface implemented by the plugins, struct consisting of the following fields
- **`types`** *string array*
types indicate what interface(s) the plugin currently implements.
currently supported:
- **docker.volumedriver/1.0**
- **docker.networkdriver/1.0**
- **docker.ipamdriver/1.0**
- **docker.authz/1.0**
- **docker.logdriver/1.0**
- **docker.metricscollector/1.0**
- **`socket`** *string*
socket is the name of the socket the engine should use to communicate with the plugins.
the socket will be created in `/run/docker/plugins`.
- **`entrypoint`** *string array*
entrypoint of the plugin, see [`ENTRYPOINT`](../reference/builder.md#entrypoint)
- **`workdir`** *string*
workdir of the plugin, see [`WORKDIR`](../reference/builder.md#workdir)
- **`network`** *PluginNetwork*
network of the plugin, struct consisting of the following fields
- **`type`** *string*
network type.
currently supported:
- **bridge**
- **host**
- **none**
- **`mounts`** *PluginMount array*
mount of the plugin, struct consisting of the following fields, see [`MOUNTS`](https://github.com/opencontainers/runtime-spec/blob/master/config.md#mounts)
- **`name`** *string*
name of the mount.
- **`description`** *string*
description of the mount.
- **`source`** *string*
source of the mount.
- **`destination`** *string*
destination of the mount.
- **`type`** *string*
mount type.
- **`options`** *string array*
options of the mount.
- **`ipchost`** *boolean*
Access to host ipc namespace.
- **`pidhost`** *boolean*
Access to host pid namespace.
- **`propagatedMount`** *string*
path to be mounted as rshared, so that mounts under that path are visible to docker. This is useful for volume plugins.
This path will be bind-mounted outisde of the plugin rootfs so it's contents
are preserved on upgrade.
- **`env`** *PluginEnv array*
env of the plugin, struct consisting of the following fields
- **`name`** *string*
name of the env.
- **`description`** *string*
description of the env.
- **`value`** *string*
value of the env.
- **`args`** *PluginArgs*
args of the plugin, struct consisting of the following fields
- **`name`** *string*
name of the args.
- **`description`** *string*
description of the args.
- **`value`** *string array*
values of the args.
- **`linux`** *PluginLinux*
- **`capabilities`** *string array*
capabilities of the plugin (*Linux only*), see list [`here`](https://github.com/opencontainers/runc/blob/master/libcontainer/SPEC.md#security)
- **`allowAllDevices`** *boolean*
If `/dev` is bind mounted from the host, and allowAllDevices is set to true, the plugin will have `rwm` access to all devices on the host.
- **`devices`** *PluginDevice array*
device of the plugin, (*Linux only*), struct consisting of the following fields, see [`DEVICES`](https://github.com/opencontainers/runtime-spec/blob/master/config-linux.md#devices)
- **`name`** *string*
name of the device.
- **`description`** *string*
description of the device.
- **`path`** *string*
path of the device.
## Example Config
*Example showing the 'tiborvass/sample-volume-plugin' plugin config.*
```json
{
"Args": {
"Description": "",
"Name": "",
"Settable": null,
"Value": null
},
"Description": "A sample volume plugin for Docker",
"Documentation": "https://docs.docker.com/engine/extend/plugins/",
"Entrypoint": [
"/usr/bin/sample-volume-plugin",
"/data"
],
"Env": [
{
"Description": "",
"Name": "DEBUG",
"Settable": [
"value"
],
"Value": "0"
}
],
"Interface": {
"Socket": "plugin.sock",
"Types": [
"docker.volumedriver/1.0"
]
},
"Linux": {
"Capabilities": null,
"AllowAllDevices": false,
"Devices": null
},
"Mounts": null,
"Network": {
"Type": ""
},
"PropagatedMount": "/data",
"User": {},
"Workdir": ""
}
```
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---
description: Develop and use a plugin with the managed plugin system
keywords: "API, Usage, plugins, documentation, developer"
title: Managed plugin system
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Docker Engine managed plugin system
* [Installing and using a plugin](index.md#installing-and-using-a-plugin)
* [Developing a plugin](index.md#developing-a-plugin)
* [Debugging plugins](index.md#debugging-plugins)
Docker Engine's plugin system allows you to install, start, stop, and remove
plugins using Docker Engine.
For information about the legacy plugin system available in Docker Engine 1.12
and earlier, see [Understand legacy Docker Engine plugins](legacy_plugins.md).
> **Note**: Docker Engine managed plugins are currently not supported
on Windows daemons.
## Installing and using a plugin
Plugins are distributed as Docker images and can be hosted on Docker Hub or on
a private registry.
To install a plugin, use the `docker plugin install` command, which pulls the
plugin from Docker Hub or your private registry, prompts you to grant
permissions or capabilities if necessary, and enables the plugin.
To check the status of installed plugins, use the `docker plugin ls` command.
Plugins that start successfully are listed as enabled in the output.
After a plugin is installed, you can use it as an option for another Docker
operation, such as creating a volume.
In the following example, you install the `sshfs` plugin, verify that it is
enabled, and use it to create a volume.
> **Note**: This example is intended for instructional purposes only. Once the volume is created, your SSH password to the remote host will be exposed as plaintext when inspecting the volume. You should delete the volume as soon as you are done with the example.
1. Install the `sshfs` plugin.
```bash
$ docker plugin install vieux/sshfs
Plugin "vieux/sshfs" is requesting the following privileges:
- network: [host]
- capabilities: [CAP_SYS_ADMIN]
Do you grant the above permissions? [y/N] y
vieux/sshfs
```
The plugin requests 2 privileges:
- It needs access to the `host` network.
- It needs the `CAP_SYS_ADMIN` capability, which allows the plugin to run
the `mount` command.
2. Check that the plugin is enabled in the output of `docker plugin ls`.
```bash
$ docker plugin ls
ID NAME TAG DESCRIPTION ENABLED
69553ca1d789 vieux/sshfs latest the `sshfs` plugin true
```
3. Create a volume using the plugin.
This example mounts the `/remote` directory on host `1.2.3.4` into a
volume named `sshvolume`.
This volume can now be mounted into containers.
```bash
$ docker volume create \
-d vieux/sshfs \
--name sshvolume \
-o sshcmd=user@1.2.3.4:/remote \
-o password=$(cat file_containing_password_for_remote_host)
sshvolume
```
4. Verify that the volume was created successfully.
```bash
$ docker volume ls
DRIVER NAME
vieux/sshfs sshvolume
```
5. Start a container that uses the volume `sshvolume`.
```bash
$ docker run --rm -v sshvolume:/data busybox ls /data
<content of /remote on machine 1.2.3.4>
```
6. Remove the volume `sshvolume`
```bash
docker volume rm sshvolume
sshvolume
```
To disable a plugin, use the `docker plugin disable` command. To completely
remove it, use the `docker plugin remove` command. For other available
commands and options, see the
[command line reference](../reference/commandline/index.md).
## Developing a plugin
#### The rootfs directory
The `rootfs` directory represents the root filesystem of the plugin. In this
example, it was created from a Dockerfile:
>**Note:** The `/run/docker/plugins` directory is mandatory inside of the
plugin's filesystem for docker to communicate with the plugin.
```bash
$ git clone https://github.com/vieux/docker-volume-sshfs
$ cd docker-volume-sshfs
$ docker build -t rootfsimage .
$ id=$(docker create rootfsimage true) # id was cd851ce43a403 when the image was created
$ sudo mkdir -p myplugin/rootfs
$ sudo docker export "$id" | sudo tar -x -C myplugin/rootfs
$ docker rm -vf "$id"
$ docker rmi rootfsimage
```
#### The config.json file
The `config.json` file describes the plugin. See the [plugins config reference](config.md).
Consider the following `config.json` file.
```json
{
"description": "sshFS plugin for Docker",
"documentation": "https://docs.docker.com/engine/extend/plugins/",
"entrypoint": ["/docker-volume-sshfs"],
"network": {
"type": "host"
},
"interface" : {
"types": ["docker.volumedriver/1.0"],
"socket": "sshfs.sock"
},
"linux": {
"capabilities": ["CAP_SYS_ADMIN"]
}
}
```
This plugin is a volume driver. It requires a `host` network and the
`CAP_SYS_ADMIN` capability. It depends upon the `/docker-volume-sshfs`
entrypoint and uses the `/run/docker/plugins/sshfs.sock` socket to communicate
with Docker Engine. This plugin has no runtime parameters.
#### Creating the plugin
A new plugin can be created by running
`docker plugin create <plugin-name> ./path/to/plugin/data` where the plugin
data contains a plugin configuration file `config.json` and a root filesystem
in subdirectory `rootfs`.
After that the plugin `<plugin-name>` will show up in `docker plugin ls`.
Plugins can be pushed to remote registries with
`docker plugin push <plugin-name>`.
## Debugging plugins
Stdout of a plugin is redirected to dockerd logs. Such entries have a
`plugin=<ID>` suffix. Here are a few examples of commands for pluginID
`f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62` and their
corresponding log entries in the docker daemon logs.
```bash
$ docker plugin install tiborvass/sample-volume-plugins
INFO[0036] Starting... Found 0 volumes on startup plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
```
```bash
$ docker volume create -d tiborvass/sample-volume-plugins samplevol
INFO[0193] Create Called... Ensuring directory /data/samplevol exists on host... plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0193] open /var/lib/docker/plugin-data/local-persist.json: no such file or directory plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0193] Created volume samplevol with mountpoint /data/samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0193] Path Called... Returned path /data/samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
```
```bash
$ docker run -v samplevol:/tmp busybox sh
INFO[0421] Get Called... Found samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0421] Mount Called... Mounted samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0421] Path Called... Returned path /data/samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
INFO[0421] Unmount Called... Unmounted samplevol plugin=f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62
```
#### Using docker-runc to obtain logfiles and shell into the plugin.
`docker-runc`, the default docker container runtime can be used for debugging
plugins. This is specifically useful to collect plugin logs if they are
redirected to a file.
```bash
$ docker-runc list
ID PID STATUS BUNDLE CREATED
f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62 2679 running /run/docker/libcontainerd/f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62 2017-02-06T21:53:03.031537592Z
r
```
```bash
$ docker-runc exec f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62 cat /var/log/plugin.log
```
If the plugin has a built-in shell, then exec into the plugin can be done as
follows:
```bash
$ docker-runc exec -t f52a3df433b9aceee436eaada0752f5797aab1de47e5485f1690a073b860ff62 sh
```
#### Using curl to debug plugin socket issues.
To verify if the plugin API socket that the docker daemon communicates with
is responsive, use curl. In this example, we will make API calls from the
docker host to volume and network plugins using curl 7.47.0 to ensure that
the plugin is listening on the said socket. For a well functioning plugin,
these basic requests should work. Note that plugin sockets are available on the host under `/var/run/docker/plugins/<pluginID>`
```bash
curl -H "Content-Type: application/json" -XPOST -d '{}' --unix-socket /var/run/docker/plugins/e8a37ba56fc879c991f7d7921901723c64df6b42b87e6a0b055771ecf8477a6d/plugin.sock http:/VolumeDriver.List
{"Mountpoint":"","Err":"","Volumes":[{"Name":"myvol1","Mountpoint":"/data/myvol1"},{"Name":"myvol2","Mountpoint":"/data/myvol2"}],"Volume":null}
```
```bash
curl -H "Content-Type: application/json" -XPOST -d '{}' --unix-socket /var/run/docker/plugins/45e00a7ce6185d6e365904c8bcf62eb724b1fe307e0d4e7ecc9f6c1eb7bcdb70/plugin.sock http:/NetworkDriver.GetCapabilities
{"Scope":"local"}
```
When using curl 7.5 and above, the URL should be of the form
`http://hostname/APICall`, where `hostname` is the valid hostname where the
plugin is installed and `APICall` is the call to the plugin API.
For example, `http://localhost/VolumeDriver.List`
@@ -1,101 +0,0 @@
---
redirect_from:
- "/engine/extend/plugins/"
title: "Use Docker Engine plugins"
description: "How to add additional functionality to Docker with plugins extensions"
keywords: "Examples, Usage, plugins, docker, documentation, user guide"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
This document describes the Docker Engine plugins generally available in Docker
Engine. To view information on plugins managed by Docker,
refer to [Docker Engine plugin system](index.md).
You can extend the capabilities of the Docker Engine by loading third-party
plugins. This page explains the types of plugins and provides links to several
volume and network plugins for Docker.
## Types of plugins
Plugins extend Docker's functionality. They come in specific types. For
example, a [volume plugin](plugins_volume.md) might enable Docker
volumes to persist across multiple Docker hosts and a
[network plugin](plugins_network.md) might provide network plumbing.
Currently Docker supports authorization, volume and network driver plugins. In the future it
will support additional plugin types.
## Installing a plugin
Follow the instructions in the plugin's documentation.
## Finding a plugin
The sections below provide an inexhaustive overview of available plugins.
<style>
#DocumentationText tr td:first-child { white-space: nowrap;}
</style>
### Network plugins
Plugin | Description
----------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Contiv Networking](https://github.com/contiv/netplugin) | An open source network plugin to provide infrastructure and security policies for a multi-tenant micro services deployment, while providing an integration to physical network for non-container workload. Contiv Networking implements the remote driver and IPAM APIs available in Docker 1.9 onwards.
[Kuryr Network Plugin](https://github.com/openstack/kuryr) | A network plugin is developed as part of the OpenStack Kuryr project and implements the Docker networking (libnetwork) remote driver API by utilizing Neutron, the OpenStack networking service. It includes an IPAM driver as well.
[Weave Network Plugin](https://www.weave.works/docs/net/latest/introducing-weave/) | A network plugin that creates a virtual network that connects your Docker containers - across multiple hosts or clouds and enables automatic discovery of applications. Weave networks are resilient, partition tolerant, secure and work in partially connected networks, and other adverse environments - all configured with delightful simplicity.
### Volume plugins
Plugin | Description
----------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Azure File Storage plugin](https://github.com/Azure/azurefile-dockervolumedriver) | Lets you mount Microsoft [Azure File Storage](https://azure.microsoft.com/blog/azure-file-storage-now-generally-available/) shares to Docker containers as volumes using the SMB 3.0 protocol. [Learn more](https://azure.microsoft.com/blog/persistent-docker-volumes-with-azure-file-storage/).
[BeeGFS Volume Plugin](https://github.com/RedCoolBeans/docker-volume-beegfs) | An open source volume plugin to create persistent volumes in a BeeGFS parallel file system.
[Blockbridge plugin](https://github.com/blockbridge/blockbridge-docker-volume) | A volume plugin that provides access to an extensible set of container-based persistent storage options. It supports single and multi-host Docker environments with features that include tenant isolation, automated provisioning, encryption, secure deletion, snapshots and QoS.
[Contiv Volume Plugin](https://github.com/contiv/volplugin) | An open source volume plugin that provides multi-tenant, persistent, distributed storage with intent based consumption. It has support for Ceph and NFS.
[Convoy plugin](https://github.com/rancher/convoy) | A volume plugin for a variety of storage back-ends including device mapper and NFS. It's a simple standalone executable written in Go and provides the framework to support vendor-specific extensions such as snapshots, backups and restore.
[DigitalOcean Block Storage plugin](https://github.com/omallo/docker-volume-plugin-dostorage) | Integrates DigitalOcean's [block storage solution](https://www.digitalocean.com/products/storage/) into the Docker ecosystem by automatically attaching a given block storage volume to a DigitalOcean droplet and making the contents of the volume available to Docker containers running on that droplet.
[DRBD plugin](https://www.drbd.org/en/supported-projects/docker) | A volume plugin that provides highly available storage replicated by [DRBD](https://www.drbd.org). Data written to the docker volume is replicated in a cluster of DRBD nodes.
[Flocker plugin](https://clusterhq.com/docker-plugin/) | A volume plugin that provides multi-host portable volumes for Docker, enabling you to run databases and other stateful containers and move them around across a cluster of machines.
[Fuxi Volume Plugin](https://github.com/openstack/fuxi) | A volume plugin that is developed as part of the OpenStack Kuryr project and implements the Docker volume plugin API by utilizing Cinder, the OpenStack block storage service.
[gce-docker plugin](https://github.com/mcuadros/gce-docker) | A volume plugin able to attach, format and mount Google Compute [persistent-disks](https://cloud.google.com/compute/docs/disks/persistent-disks).
[GlusterFS plugin](https://github.com/calavera/docker-volume-glusterfs) | A volume plugin that provides multi-host volumes management for Docker using GlusterFS.
[Horcrux Volume Plugin](https://github.com/muthu-r/horcrux) | A volume plugin that allows on-demand, version controlled access to your data. Horcrux is an open-source plugin, written in Go, and supports SCP, [Minio](https://www.minio.io) and Amazon S3.
[HPE 3Par Volume Plugin](https://github.com/hpe-storage/python-hpedockerplugin/) | A volume plugin that supports HPE 3Par and StoreVirtual iSCSI storage arrays.
[IPFS Volume Plugin](http://github.com/vdemeester/docker-volume-ipfs) | An open source volume plugin that allows using an [ipfs](https://ipfs.io/) filesystem as a volume.
[Keywhiz plugin](https://github.com/calavera/docker-volume-keywhiz) | A plugin that provides credentials and secret management using Keywhiz as a central repository.
[Local Persist Plugin](https://github.com/CWSpear/local-persist) | A volume plugin that extends the default `local` driver's functionality by allowing you specify a mountpoint anywhere on the host, which enables the files to *always persist*, even if the volume is removed via `docker volume rm`.
[NetApp Plugin](https://github.com/NetApp/netappdvp) (nDVP) | A volume plugin that provides direct integration with the Docker ecosystem for the NetApp storage portfolio. The nDVP package supports the provisioning and management of storage resources from the storage platform to Docker hosts, with a robust framework for adding additional platforms in the future.
[Netshare plugin](https://github.com/ContainX/docker-volume-netshare) | A volume plugin that provides volume management for NFS 3/4, AWS EFS and CIFS file systems.
[Nimble Storage Volume Plugin](https://connect.nimblestorage.com/community/app-integration/docker)| A volume plug-in that integrates with Nimble Storage Unified Flash Fabric arrays. The plug-in abstracts array volume capabilities to the Docker administrator to allow self-provisioning of secure multi-tenant volumes and clones.
[OpenStorage Plugin](https://github.com/libopenstorage/openstorage) | A cluster-aware volume plugin that provides volume management for file and block storage solutions. It implements a vendor neutral specification for implementing extensions such as CoS, encryption, and snapshots. It has example drivers based on FUSE, NFS, NBD and EBS to name a few.
[Portworx Volume Plugin](https://github.com/portworx/px-dev) | A volume plugin that turns any server into a scale-out converged compute/storage node, providing container granular storage and highly available volumes across any node, using a shared-nothing storage backend that works with any docker scheduler.
[Quobyte Volume Plugin](https://github.com/quobyte/docker-volume) | A volume plugin that connects Docker to [Quobyte](http://www.quobyte.com/containers)'s data center file system, a general-purpose scalable and fault-tolerant storage platform.
[REX-Ray plugin](https://github.com/emccode/rexray) | A volume plugin which is written in Go and provides advanced storage functionality for many platforms including VirtualBox, EC2, Google Compute Engine, OpenStack, and EMC.
[Virtuozzo Storage and Ploop plugin](https://github.com/virtuozzo/docker-volume-ploop) | A volume plugin with support for Virtuozzo Storage distributed cloud file system as well as ploop devices.
[VMware vSphere Storage Plugin](https://github.com/vmware/docker-volume-vsphere) | Docker Volume Driver for vSphere enables customers to address persistent storage requirements for Docker containers in vSphere environments.
### Authorization plugins
Plugin | Description
------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
[Twistlock AuthZ Broker](https://github.com/twistlock/authz) | A basic extendable authorization plugin that runs directly on the host or inside a container. This plugin allows you to define user policies that it evaluates during authorization. Basic authorization is provided if Docker daemon is started with the --tlsverify flag (username is extracted from the certificate common name).
[HBM plugin](https://github.com/kassisol/hbm) | An authorization plugin that prevents from executing commands with certains parameters.
## Troubleshooting a plugin
If you are having problems with Docker after loading a plugin, ask the authors
of the plugin for help. The Docker team may not be able to assist you.
## Writing a plugin
If you are interested in writing a plugin for Docker, or seeing how they work
under the hood, see the [docker plugins reference](plugin_api.md).
-196
View File
@@ -1,196 +0,0 @@
---
title: "Plugins API"
description: "How to write Docker plugins extensions "
keywords: "API, Usage, plugins, documentation, developer"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Docker Plugin API
Docker plugins are out-of-process extensions which add capabilities to the
Docker Engine.
This document describes the Docker Engine plugin API. To view information on
plugins managed by Docker Engine, refer to [Docker Engine plugin system](index.md).
This page is intended for people who want to develop their own Docker plugin.
If you just want to learn about or use Docker plugins, look
[here](legacy_plugins.md).
## What plugins are
A plugin is a process running on the same or a different host as the docker daemon,
which registers itself by placing a file on the same docker host in one of the plugin
directories described in [Plugin discovery](#plugin-discovery).
Plugins have human-readable names, which are short, lowercase strings. For
example, `flocker` or `weave`.
Plugins can run inside or outside containers. Currently running them outside
containers is recommended.
## Plugin discovery
Docker discovers plugins by looking for them in the plugin directory whenever a
user or container tries to use one by name.
There are three types of files which can be put in the plugin directory.
* `.sock` files are UNIX domain sockets.
* `.spec` files are text files containing a URL, such as `unix:///other.sock` or `tcp://localhost:8080`.
* `.json` files are text files containing a full json specification for the plugin.
Plugins with UNIX domain socket files must run on the same docker host, whereas
plugins with spec or json files can run on a different host if a remote URL is specified.
UNIX domain socket files must be located under `/run/docker/plugins`, whereas
spec files can be located either under `/etc/docker/plugins` or `/usr/lib/docker/plugins`.
The name of the file (excluding the extension) determines the plugin name.
For example, the `flocker` plugin might create a UNIX socket at
`/run/docker/plugins/flocker.sock`.
You can define each plugin into a separated subdirectory if you want to isolate definitions from each other.
For example, you can create the `flocker` socket under `/run/docker/plugins/flocker/flocker.sock` and only
mount `/run/docker/plugins/flocker` inside the `flocker` container.
Docker always searches for unix sockets in `/run/docker/plugins` first. It checks for spec or json files under
`/etc/docker/plugins` and `/usr/lib/docker/plugins` if the socket doesn't exist. The directory scan stops as
soon as it finds the first plugin definition with the given name.
### JSON specification
This is the JSON format for a plugin:
```json
{
"Name": "plugin-example",
"Addr": "https://example.com/docker/plugin",
"TLSConfig": {
"InsecureSkipVerify": false,
"CAFile": "/usr/shared/docker/certs/example-ca.pem",
"CertFile": "/usr/shared/docker/certs/example-cert.pem",
"KeyFile": "/usr/shared/docker/certs/example-key.pem"
}
}
```
The `TLSConfig` field is optional and TLS will only be verified if this configuration is present.
## Plugin lifecycle
Plugins should be started before Docker, and stopped after Docker. For
example, when packaging a plugin for a platform which supports `systemd`, you
might use [`systemd` dependencies](
http://www.freedesktop.org/software/systemd/man/systemd.unit.html#Before=) to
manage startup and shutdown order.
When upgrading a plugin, you should first stop the Docker daemon, upgrade the
plugin, then start Docker again.
## Plugin activation
When a plugin is first referred to -- either by a user referring to it by name
(e.g. `docker run --volume-driver=foo`) or a container already configured to
use a plugin being started -- Docker looks for the named plugin in the plugin
directory and activates it with a handshake. See Handshake API below.
Plugins are *not* activated automatically at Docker daemon startup. Rather,
they are activated only lazily, or on-demand, when they are needed.
## Systemd socket activation
Plugins may also be socket activated by `systemd`. The official [Plugins helpers](https://github.com/docker/go-plugins-helpers)
natively supports socket activation. In order for a plugin to be socket activated it needs
a `service` file and a `socket` file.
The `service` file (for example `/lib/systemd/system/your-plugin.service`):
```
[Unit]
Description=Your plugin
Before=docker.service
After=network.target your-plugin.socket
Requires=your-plugin.socket docker.service
[Service]
ExecStart=/usr/lib/docker/your-plugin
[Install]
WantedBy=multi-user.target
```
The `socket` file (for example `/lib/systemd/system/your-plugin.socket`):
```
[Unit]
Description=Your plugin
[Socket]
ListenStream=/run/docker/plugins/your-plugin.sock
[Install]
WantedBy=sockets.target
```
This will allow plugins to be actually started when the Docker daemon connects to
the sockets they're listening on (for instance the first time the daemon uses them
or if one of the plugin goes down accidentally).
## API design
The Plugin API is RPC-style JSON over HTTP, much like webhooks.
Requests flow *from* the Docker daemon *to* the plugin. So the plugin needs to
implement an HTTP server and bind this to the UNIX socket mentioned in the
"plugin discovery" section.
All requests are HTTP `POST` requests.
The API is versioned via an Accept header, which currently is always set to
`application/vnd.docker.plugins.v1+json`.
## Handshake API
Plugins are activated via the following "handshake" API call.
### /Plugin.Activate
**Request:** empty body
**Response:**
```
{
"Implements": ["VolumeDriver"]
}
```
Responds with a list of Docker subsystems which this plugin implements.
After activation, the plugin will then be sent events from this subsystem.
Possible values are:
* [`authz`](plugins_authorization.md)
* [`NetworkDriver`](plugins_network.md)
* [`VolumeDriver`](plugins_volume.md)
## Plugin retries
Attempts to call a method on a plugin are retried with an exponential backoff
for up to 30 seconds. This may help when packaging plugins as containers, since
it gives plugin containers a chance to start up before failing any user
containers which depend on them.
## Plugins helpers
To ease plugins development, we're providing an `sdk` for each kind of plugins
currently supported by Docker at [docker/go-plugins-helpers](https://github.com/docker/go-plugins-helpers).
@@ -1,260 +0,0 @@
---
title: "Access authorization plugin"
description: "How to create authorization plugins to manage access control to your Docker daemon."
keywords: "security, authorization, authentication, docker, documentation, plugin, extend"
redirect_from:
- "/engine/extend/authorization/"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Create an authorization plugin
This document describes the Docker Engine plugins generally available in Docker
Engine. To view information on plugins managed by Docker Engine,
refer to [Docker Engine plugin system](index.md).
Docker's out-of-the-box authorization model is all or nothing. Any user with
permission to access the Docker daemon can run any Docker client command. The
same is true for callers using Docker's Engine API to contact the daemon. If you
require greater access control, you can create authorization plugins and add
them to your Docker daemon configuration. Using an authorization plugin, a
Docker administrator can configure granular access policies for managing access
to Docker daemon.
Anyone with the appropriate skills can develop an authorization plugin. These
skills, at their most basic, are knowledge of Docker, understanding of REST, and
sound programming knowledge. This document describes the architecture, state,
and methods information available to an authorization plugin developer.
## Basic principles
Docker's [plugin infrastructure](plugin_api.md) enables
extending Docker by loading, removing and communicating with
third-party components using a generic API. The access authorization subsystem
was built using this mechanism.
Using this subsystem, you don't need to rebuild the Docker daemon to add an
authorization plugin. You can add a plugin to an installed Docker daemon. You do
need to restart the Docker daemon to add a new plugin.
An authorization plugin approves or denies requests to the Docker daemon based
on both the current authentication context and the command context. The
authentication context contains all user details and the authentication method.
The command context contains all the relevant request data.
Authorization plugins must follow the rules described in [Docker Plugin API](plugin_api.md).
Each plugin must reside within directories described under the
[Plugin discovery](plugin_api.md#plugin-discovery) section.
**Note**: the abbreviations `AuthZ` and `AuthN` mean authorization and authentication
respectively.
## Default user authorization mechanism
If TLS is enabled in the [Docker daemon](https://docs.docker.com/engine/security/https/), the default user authorization flow extracts the user details from the certificate subject name.
That is, the `User` field is set to the client certificate subject common name, and the `AuthenticationMethod` field is set to `TLS`.
## Basic architecture
You are responsible for registering your plugin as part of the Docker daemon
startup. You can install multiple plugins and chain them together. This chain
can be ordered. Each request to the daemon passes in order through the chain.
Only when all the plugins grant access to the resource, is the access granted.
When an HTTP request is made to the Docker daemon through the CLI or via the
Engine API, the authentication subsystem passes the request to the installed
authentication plugin(s). The request contains the user (caller) and command
context. The plugin is responsible for deciding whether to allow or deny the
request.
The sequence diagrams below depict an allow and deny authorization flow:
![Authorization Allow flow](images/authz_allow.png)
![Authorization Deny flow](images/authz_deny.png)
Each request sent to the plugin includes the authenticated user, the HTTP
headers, and the request/response body. Only the user name and the
authentication method used are passed to the plugin. Most importantly, no user
credentials or tokens are passed. Finally, not all request/response bodies
are sent to the authorization plugin. Only those request/response bodies where
the `Content-Type` is either `text/*` or `application/json` are sent.
For commands that can potentially hijack the HTTP connection (`HTTP
Upgrade`), such as `exec`, the authorization plugin is only called for the
initial HTTP requests. Once the plugin approves the command, authorization is
not applied to the rest of the flow. Specifically, the streaming data is not
passed to the authorization plugins. For commands that return chunked HTTP
response, such as `logs` and `events`, only the HTTP request is sent to the
authorization plugins.
During request/response processing, some authorization flows might
need to do additional queries to the Docker daemon. To complete such flows,
plugins can call the daemon API similar to a regular user. To enable these
additional queries, the plugin must provide the means for an administrator to
configure proper authentication and security policies.
## Docker client flows
To enable and configure the authorization plugin, the plugin developer must
support the Docker client interactions detailed in this section.
### Setting up Docker daemon
Enable the authorization plugin with a dedicated command line flag in the
`--authorization-plugin=PLUGIN_ID` format. The flag supplies a `PLUGIN_ID`
value. This value can be the plugin’s socket or a path to a specification file.
Authorization plugins can be loaded without restarting the daemon. Refer
to the [`dockerd` documentation](../reference/commandline/dockerd.md#configuration-reloading) for more information.
```bash
$ dockerd --authorization-plugin=plugin1 --authorization-plugin=plugin2,...
```
Docker's authorization subsystem supports multiple `--authorization-plugin` parameters.
### Calling authorized command (allow)
```bash
$ docker pull centos
...
f1b10cd84249: Pull complete
...
```
### Calling unauthorized command (deny)
```bash
$ docker pull centos
...
docker: Error response from daemon: authorization denied by plugin PLUGIN_NAME: volumes are not allowed.
```
### Error from plugins
```bash
$ docker pull centos
...
docker: Error response from daemon: plugin PLUGIN_NAME failed with error: AuthZPlugin.AuthZReq: Cannot connect to the Docker daemon. Is the docker daemon running on this host?.
```
## API schema and implementation
In addition to Docker's standard plugin registration method, each plugin
should implement the following two methods:
* `/AuthZPlugin.AuthZReq` This authorize request method is called before the Docker daemon processes the client request.
* `/AuthZPlugin.AuthZRes` This authorize response method is called before the response is returned from Docker daemon to the client.
#### /AuthZPlugin.AuthZReq
**Request**:
```json
{
"User": "The user identification",
"UserAuthNMethod": "The authentication method used",
"RequestMethod": "The HTTP method",
"RequestURI": "The HTTP request URI",
"RequestBody": "Byte array containing the raw HTTP request body",
"RequestHeader": "Byte array containing the raw HTTP request header as a map[string][]string "
}
```
**Response**:
```json
{
"Allow": "Determined whether the user is allowed or not",
"Msg": "The authorization message",
"Err": "The error message if things go wrong"
}
```
#### /AuthZPlugin.AuthZRes
**Request**:
```json
{
"User": "The user identification",
"UserAuthNMethod": "The authentication method used",
"RequestMethod": "The HTTP method",
"RequestURI": "The HTTP request URI",
"RequestBody": "Byte array containing the raw HTTP request body",
"RequestHeader": "Byte array containing the raw HTTP request header as a map[string][]string",
"ResponseBody": "Byte array containing the raw HTTP response body",
"ResponseHeader": "Byte array containing the raw HTTP response header as a map[string][]string",
"ResponseStatusCode":"Response status code"
}
```
**Response**:
```json
{
"Allow": "Determined whether the user is allowed or not",
"Msg": "The authorization message",
"Err": "The error message if things go wrong"
}
```
### Request authorization
Each plugin must support two request authorization messages formats, one from the daemon to the plugin and then from the plugin to the daemon. The tables below detail the content expected in each message.
#### Daemon -> Plugin
Name | Type | Description
-----------------------|-------------------|-------------------------------------------------------
User | string | The user identification
Authentication method | string | The authentication method used
Request method | enum | The HTTP method (GET/DELETE/POST)
Request URI | string | The HTTP request URI including API version (e.g., v.1.17/containers/json)
Request headers | map[string]string | Request headers as key value pairs (without the authorization header)
Request body | []byte | Raw request body
#### Plugin -> Daemon
Name | Type | Description
--------|--------|----------------------------------------------------------------------------------
Allow | bool | Boolean value indicating whether the request is allowed or denied
Msg | string | Authorization message (will be returned to the client in case the access is denied)
Err | string | Error message (will be returned to the client in case the plugin encounter an error. The string value supplied may appear in logs, so should not include confidential information)
### Response authorization
The plugin must support two authorization messages formats, one from the daemon to the plugin and then from the plugin to the daemon. The tables below detail the content expected in each message.
#### Daemon -> Plugin
Name | Type | Description
----------------------- |------------------ |----------------------------------------------------
User | string | The user identification
Authentication method | string | The authentication method used
Request method | string | The HTTP method (GET/DELETE/POST)
Request URI | string | The HTTP request URI including API version (e.g., v.1.17/containers/json)
Request headers | map[string]string | Request headers as key value pairs (without the authorization header)
Request body | []byte | Raw request body
Response status code | int | Status code from the docker daemon
Response headers | map[string]string | Response headers as key value pairs
Response body | []byte | Raw docker daemon response body
#### Plugin -> Daemon
Name | Type | Description
--------|--------|----------------------------------------------------------------------------------
Allow | bool | Boolean value indicating whether the response is allowed or denied
Msg | string | Authorization message (will be returned to the client in case the access is denied)
Err | string | Error message (will be returned to the client in case the plugin encounter an error. The string value supplied may appear in logs, so should not include confidential information)
@@ -1,403 +0,0 @@
---
title: "Graphdriver plugins"
description: "How to manage image and container filesystems with external plugins"
keywords: "Examples, Usage, storage, image, docker, data, graph, plugin, api"
advisory: experimental
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
## Changelog
### 1.13.0
- Support v2 plugins
# Docker graph driver plugins
Docker graph driver plugins enable admins to use an external/out-of-process
graph driver for use with Docker engine. This is an alternative to using the
built-in storage drivers, such as aufs/overlay/devicemapper/btrfs.
You need to install and enable the plugin and then restart the Docker daemon
before using the plugin. See the following example for the correct ordering
of steps.
```
$ docker plugin install cpuguy83/docker-overlay2-graphdriver-plugin # this command also enables the driver
<output suppressed>
$ pkill dockerd
$ dockerd --experimental -s cpuguy83/docker-overlay2-graphdriver-plugin
```
# Write a graph driver plugin
See the [plugin documentation](https://docs.docker.com/engine/extend/) for detailed information
on the underlying plugin protocol.
## Graph Driver plugin protocol
If a plugin registers itself as a `GraphDriver` when activated, then it is
expected to provide the rootfs for containers as well as image layer storage.
### /GraphDriver.Init
**Request**:
```json
{
"Home": "/graph/home/path",
"Opts": [],
"UIDMaps": [],
"GIDMaps": []
}
```
Initialize the graph driver plugin with a home directory and array of options.
These are passed through from the user, but the plugin is not required to parse
or honor them.
The request also includes a list of UID and GID mappings, structed as follows:
```json
{
"ContainerID": 0,
"HostID": 0,
"Size": 0
}
```
**Response**:
```json
{
"Err": ""
}
```
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Capabilities
**Request**:
```json
{}
```
Get behavioral characteristics of the graph driver. If a plugin does not handle
this request, the engine will use default values for all capabilities.
**Response**:
```json
{
"ReproducesExactDiffs": false,
}
```
Respond with values of capabilities:
* **ReproducesExactDiffs** Defaults to false. Flags that this driver is capable
of reproducing exactly equivalent diffs for read-only filesystem layers.
### /GraphDriver.Create
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Parent": "2cd9c322cb78a55e8212aa3ea8425a4180236d7106938ec921d0935a4b8ca142",
"MountLabel": "",
"StorageOpt": {}
}
```
Create a new, empty, read-only filesystem layer with the specified
`ID`, `Parent` and `MountLabel`. If `Parent` is an empty string, there is no
parent layer. `StorageOpt` is map of strings which indicate storage options.
**Response**:
```json
{
"Err": ""
}
```
Respond with a non-empty string error if an error occurred.
### /GraphDriver.CreateReadWrite
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Parent": "2cd9c322cb78a55e8212aa3ea8425a4180236d7106938ec921d0935a4b8ca142",
"MountLabel": "",
"StorageOpt": {}
}
```
Similar to `/GraphDriver.Create` but creates a read-write filesystem layer.
### /GraphDriver.Remove
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187"
}
```
Remove the filesystem layer with this given `ID`.
**Response**:
```json
{
"Err": ""
}
```
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Get
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"MountLabel": ""
}
```
Get the mountpoint for the layered filesystem referred to by the given `ID`.
**Response**:
```json
{
"Dir": "/var/mygraph/46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Err": ""
}
```
Respond with the absolute path to the mounted layered filesystem.
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Put
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187"
}
```
Release the system resources for the specified `ID`, such as unmounting the
filesystem layer.
**Response**:
```json
{
"Err": ""
}
```
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Exists
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187"
}
```
Determine if a filesystem layer with the specified `ID` exists.
**Response**:
```json
{
"Exists": true
}
```
Respond with a boolean for whether or not the filesystem layer with the specified
`ID` exists.
### /GraphDriver.Status
**Request**:
```json
{}
```
Get low-level diagnostic information about the graph driver.
**Response**:
```json
{
"Status": [[]]
}
```
Respond with a 2-D array with key/value pairs for the underlying status
information.
### /GraphDriver.GetMetadata
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187"
}
```
Get low-level diagnostic information about the layered filesystem with the
with the specified `ID`
**Response**:
```json
{
"Metadata": {},
"Err": ""
}
```
Respond with a set of key/value pairs containing the low-level diagnostic
information about the layered filesystem.
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Cleanup
**Request**:
```json
{}
```
Perform necessary tasks to release resources help by the plugin, such as
unmounting all the layered file systems.
**Response**:
```json
{
"Err": ""
}
```
Respond with a non-empty string error if an error occurred.
### /GraphDriver.Diff
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Parent": "2cd9c322cb78a55e8212aa3ea8425a4180236d7106938ec921d0935a4b8ca142"
}
```
Get an archive of the changes between the filesystem layers specified by the `ID`
and `Parent`. `Parent` may be an empty string, in which case there is no parent.
**Response**:
```
{% raw %}
{{ TAR STREAM }}
{% endraw %}
```
### /GraphDriver.Changes
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Parent": "2cd9c322cb78a55e8212aa3ea8425a4180236d7106938ec921d0935a4b8ca142"
}
```
Get a list of changes between the filesystem layers specified by the `ID` and
`Parent`. If `Parent` is an empty string, there is no parent.
**Response**:
```json
{
"Changes": [{}],
"Err": ""
}
```
Respond with a list of changes. The structure of a change is:
```json
"Path": "/some/path",
"Kind": 0,
```
Where the `Path` is the filesystem path within the layered filesystem that is
changed and `Kind` is an integer specifying the type of change that occurred:
- 0 - Modified
- 1 - Added
- 2 - Deleted
Respond with a non-empty string error if an error occurred.
### /GraphDriver.ApplyDiff
**Request**:
```
{% raw %}
{{ TAR STREAM }}
{% endraw %}
```
Extract the changeset from the given diff into the layer with the specified `ID`
and `Parent`
**Query Parameters**:
- id (required)- the `ID` of the new filesystem layer to extract the diff to
- parent (required)- the `Parent` of the given `ID`
**Response**:
```json
{
"Size": 512366,
"Err": ""
}
```
Respond with the size of the new layer in bytes.
Respond with a non-empty string error if an error occurred.
### /GraphDriver.DiffSize
**Request**:
```json
{
"ID": "46fe8644f2572fd1e505364f7581e0c9dbc7f14640bd1fb6ce97714fb6fc5187",
"Parent": "2cd9c322cb78a55e8212aa3ea8425a4180236d7106938ec921d0935a4b8ca142"
}
```
Calculate the changes between the specified `ID`
**Response**:
```json
{
"Size": 512366,
"Err": ""
}
```
Respond with the size changes between the specified `ID` and `Parent`
Respond with a non-empty string error if an error occurred.
@@ -1,220 +0,0 @@
---
title: "Docker log driver plugins"
description: "Log driver plugins."
keywords: "Examples, Usage, plugins, docker, documentation, user guide, logging"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Logging driver plugins
This document describes logging driver plugins for Docker.
Logging drivers enables users to forward container logs to another service for
processing. Docker includes several logging drivers as built-ins, however can
never hope to support all use-cases with built-in drivers. Plugins allow Docker
to support a wide range of logging services without requiring to embed client
libraries for these services in the main Docker codebase. See the
[plugin documentation](legacy_plugins.md) for more information.
## Create a logging plugin
The main interface for logging plugins uses the same JSON+HTTP RPC protocol used
by other plugin types. See the
[example](https://github.com/cpuguy83/docker-log-driver-test) plugin for a
reference implementation of a logging plugin. The example wraps the built-in
`jsonfilelog` log driver.
## LogDriver protocol
Logging plugins must register as a `LogDriver` during plugin activation. Once
activated users can specify the plugin as a log driver.
There are two HTTP endpoints that logging plugins must implement:
### `/LogDriver.StartLogging`
Signals to the plugin that a container is starting that the plugin should start
receiving logs for.
Logs will be streamed over the defined file in the request. On Linux this file
is a FIFO. Logging plugins are not currently supported on Windows.
**Request**:
```json
{
"File": "/path/to/file/stream",
"Info": {
"ContainerID": "123456"
}
}
```
`File` is the path to the log stream that needs to be consumed. Each call to
`StartLogging` should provide a different file path, even if it's a container
that the plugin has already received logs for prior. The file is created by
docker with a randomly generated name.
`Info` is details about the container that's being logged. This is fairly
free-form, but is defined by the following struct definition:
```go
type Info struct {
Config map[string]string
ContainerID string
ContainerName string
ContainerEntrypoint string
ContainerArgs []string
ContainerImageID string
ContainerImageName string
ContainerCreated time.Time
ContainerEnv []string
ContainerLabels map[string]string
LogPath string
DaemonName string
}
```
`ContainerID` will always be supplied with this struct, but other fields may be
empty or missing.
**Response**
```json
{
"Err": ""
}
```
If an error occurred during this request, add an error message to the `Err` field
in the response. If no error then you can either send an empty response (`{}`)
or an empty value for the `Err` field.
The driver should at this point be consuming log messages from the passed in file.
If messages are unconsumed, it may cause the container to block while trying to
write to its stdio streams.
Log stream messages are encoded as protocol buffers. The protobuf definitions are
in the
[docker repository](https://github.com/docker/docker/blob/master/api/types/plugins/logdriver/entry.proto).
Since protocol buffers are not self-delimited you must decode them from the stream
using the following stream format:
```
[size][message]
```
Where `size` is a 4-byte big endian binary encoded uint32. `size` in this case
defines the size of the next message. `message` is the actual log entry.
A reference golang implementation of a stream encoder/decoder can be found
[here](https://github.com/docker/docker/blob/master/api/types/plugins/logdriver/io.go)
### `/LogDriver.StopLogging`
Signals to the plugin to stop collecting logs from the defined file.
Once a response is received, the file will be removed by Docker. You must make
sure to collect all logs on the stream before responding to this request or risk
losing log data.
Requests on this endpoint does not mean that the container has been removed
only that it has stopped.
**Request**:
```json
{
"File": "/path/to/file/stream"
}
```
**Response**:
```json
{
"Err": ""
}
```
If an error occurred during this request, add an error message to the `Err` field
in the response. If no error then you can either send an empty response (`{}`)
or an empty value for the `Err` field.
## Optional endpoints
Logging plugins can implement two extra logging endpoints:
### `/LogDriver.Capabilities`
Defines the capabilities of the log driver. You must implement this endpoint for
Docker to be able to take advantage of any of the defined capabilities.
**Request**:
```json
{}
```
**Response**:
```json
{
"ReadLogs": true
}
```
Supported capabilities:
- `ReadLogs` - this tells Docker that the plugin is capable of reading back logs
to clients. Plugins that report that they support `ReadLogs` must implement the
`/LogDriver.ReadLogs` endpoint
### `/LogDriver.ReadLogs`
Reads back logs to the client. This is used when `docker logs <container>` is
called.
In order for Docker to use this endpoint, the plugin must specify as much when
`/LogDriver.Capabilities` is called.
**Request**:
```json
{
"ReadConfig": {},
"Info": {
"ContainerID": "123456"
}
}
```
`ReadConfig` is the list of options for reading, it is defined with the following
golang struct:
```go
type ReadConfig struct {
Since time.Time
Tail int
Follow bool
}
```
- `Since` defines the oldest log that should be sent.
- `Tail` defines the number of lines to read (e.g. like the command `tail -n 10`)
- `Follow` signals that the client wants to stay attached to receive new log messages
as they come in once the existing logs have been read.
`Info` is the same type defined in `/LogDriver.StartLogging`. It should be used
to determine what set of logs to read.
**Response**:
```
{{ log stream }}
```
The response should be the encoded log message using the same format as the
messages that the plugin consumed from Docker.
@@ -1,85 +0,0 @@
---
title: "Docker metrics collector plugins"
description: "Metrics plugins."
keywords: "Examples, Usage, plugins, docker, documentation, user guide, metrics"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Metrics Collector Plugins
Docker exposes internal metrics based on the prometheus format. Metrics plugins
enable accessing these metrics in a consistent way by providing a Unix
socket at a predefined path where the plugin can scrape the metrics.
> **Note**: that while the plugin interface for metrics is non-experimental, the naming
of the metrics and metric labels is still considered experimental and may change
in a future version.
## Creating a metrics plugin
You must currently set `PropagatedMount` in the plugin `config.json` to
`/run/docker`. This allows the plugin to receive updated mounts
(the bind-mounted socket) from Docker after the plugin is already configured.
## MetricsCollector protocol
Metrics plugins must register as implementing the`MetricsCollector` interface
in `config.json`.
On Unix platforms, the socket is located at `/run/docker/metrics.sock` in the
plugin's rootfs.
`MetricsCollector` must implement two endpoints:
### `MetricsCollector.StartMetrics`
Signals to the plugin that the metrics socket is now available for scraping
**Request**
```json
{}
```
The request has no playload.
**Response**
```json
{
"Err": ""
}
```
If an error occurred during this request, add an error message to the `Err` field
in the response. If no error then you can either send an empty response (`{}`)
or an empty value for the `Err` field. Errors will only be logged.
### `MetricsCollector.StopMetrics`
Signals to the plugin that the metrics socket is no longer available.
This may happen when the daemon is shutting down.
**Request**
```json
{}
```
The request has no playload.
**Response**
```json
{
"Err": ""
}
```
If an error occurred during this request, add an error message to the `Err` field
in the response. If no error then you can either send an empty response (`{}`)
or an empty value for the `Err` field. Errors will only be logged.
@@ -1,77 +0,0 @@
---
title: "Docker network driver plugins"
description: "Network driver plugins."
keywords: "Examples, Usage, plugins, docker, documentation, user guide"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Engine network driver plugins
This document describes Docker Engine network driver plugins generally
available in Docker Engine. To view information on plugins
managed by Docker Engine, refer to [Docker Engine plugin system](index.md).
Docker Engine network plugins enable Engine deployments to be extended to
support a wide range of networking technologies, such as VXLAN, IPVLAN, MACVLAN
or something completely different. Network driver plugins are supported via the
LibNetwork project. Each plugin is implemented as a "remote driver" for
LibNetwork, which shares plugin infrastructure with Engine. Effectively, network
driver plugins are activated in the same way as other plugins, and use the same
kind of protocol.
## Network driver plugins and swarm mode
Docker 1.12 adds support for cluster management and orchestration called
[swarm mode](https://docs.docker.com/engine/swarm/). Docker Engine running in swarm mode currently
only supports the built-in overlay driver for networking. Therefore existing
networking plugins will not work in swarm mode.
When you run Docker Engine outside of swarm mode, all networking plugins that
worked in Docker 1.11 will continue to function normally. They do not require
any modification.
## Using network driver plugins
The means of installing and running a network driver plugin depend on the
particular plugin. So, be sure to install your plugin according to the
instructions obtained from the plugin developer.
Once running however, network driver plugins are used just like the built-in
network drivers: by being mentioned as a driver in network-oriented Docker
commands. For example,
$ docker network create --driver weave mynet
Some network driver plugins are listed in [plugins](legacy_plugins.md)
The `mynet` network is now owned by `weave`, so subsequent commands
referring to that network will be sent to the plugin,
$ docker run --network=mynet busybox top
## Write a network plugin
Network plugins implement the [Docker plugin
API](plugin_api.md) and the network plugin protocol
## Network plugin protocol
The network driver protocol, in addition to the plugin activation call, is
documented as part of libnetwork:
[https://github.com/docker/libnetwork/blob/master/docs/remote.md](https://github.com/docker/libnetwork/blob/master/docs/remote.md).
# Related Information
To interact with the Docker maintainers and other interested users, see the IRC channel `#docker-network`.
- [Docker networks feature overview](https://docs.docker.com/engine/userguide/networking/)
- The [LibNetwork](https://github.com/docker/libnetwork) project
@@ -1,186 +0,0 @@
---
description: Using services with plugins
keywords: "API, Usage, plugins, documentation, developer"
title: Plugins and Services
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Using Volume and Network plugins in Docker services
In swarm mode, it is possible to create a service that allows for attaching
to networks or mounting volumes that are backed by plugins. Swarm schedules
services based on plugin availability on a node.
### Volume plugins
In this example, a volume plugin is installed on a swarm worker and a volume
is created using the plugin. In the manager, a service is created with the
relevant mount options. It can be observed that the service is scheduled to
run on the worker node with the said volume plugin and volume. Note that,
node1 is the manager and node2 is the worker.
1. Prepare manager. In node 1:
```bash
$ docker swarm init
Swarm initialized: current node (dxn1zf6l61qsb1josjja83ngz) is now a manager.
```
2. Join swarm, install plugin and create volume on worker. In node 2:
```bash
$ docker swarm join \
--token SWMTKN-1-49nj1cmql0jkz5s954yi3oex3nedyz0fb0xx14ie39trti4wxv-8vxv8rssmk743ojnwacrr2e7c \
192.168.99.100:2377
```
```bash
$ docker plugin install tiborvass/sample-volume-plugin
latest: Pulling from tiborvass/sample-volume-plugin
eb9c16fbdc53: Download complete
Digest: sha256:00b42de88f3a3e0342e7b35fa62394b0a9ceb54d37f4c50be5d3167899994639
Status: Downloaded newer image for tiborvass/sample-volume-plugin:latest
Installed plugin tiborvass/sample-volume-plugin
```
```bash
$ docker volume create -d tiborvass/sample-volume-plugin --name pluginVol
```
3. Create a service using the plugin and volume. In node1:
```bash
$ docker service create --name my-service --mount type=volume,volume-driver=tiborvass/sample-volume-plugin,source=pluginVol,destination=/tmp busybox top
$ docker service ls
z1sj8bb8jnfn my-service replicated 1/1 busybox:latest
```
docker service ls shows service 1 instance of service running.
4. Observe the task getting scheduled in node 2:
```bash
{% raw %}
$ docker ps --format '{{.ID}}\t {{.Status}} {{.Names}} {{.Command}}'
83fc1e842599 Up 2 days my-service.1.9jn59qzn7nbc3m0zt1hij12xs "top"
{% endraw %}
```
### Network plugins
In this example, a global scope network plugin is installed on both the
swarm manager and worker. A service is created with replicated instances
using the installed plugin. We will observe how the availability of the
plugin determines network creation and container scheduling.
Note that node1 is the manager and node2 is the worker.
1. Install a global scoped network plugin on both manager and worker. On node1
and node2:
```bash
$ docker plugin install bboreham/weave2
Plugin "bboreham/weave2" is requesting the following privileges:
- network: [host]
- capabilities: [CAP_SYS_ADMIN CAP_NET_ADMIN]
Do you grant the above permissions? [y/N] y
latest: Pulling from bboreham/weave2
7718f575adf7: Download complete
Digest: sha256:2780330cc15644b60809637ee8bd68b4c85c893d973cb17f2981aabfadfb6d72
Status: Downloaded newer image for bboreham/weave2:latest
Installed plugin bboreham/weave2
```
2. Create a network using plugin on manager. On node1:
```bash
$ docker network create --driver=bboreham/weave2:latest globalnet
$ docker network ls
NETWORK ID NAME DRIVER SCOPE
qlj7ueteg6ly globalnet bboreham/weave2:latest swarm
```
3. Create a service on the manager and have replicas set to 8. Observe that
containers get scheduled on both manager and worker.
On node 1:
```bash
$ docker service create --network globalnet --name myservice --replicas=8 mrjana/simpleweb simpleweb
w90drnfzw85nygbie9kb89vpa
```
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
87520965206a mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 5 seconds ago Up 4 seconds myservice.4.ytdzpktmwor82zjxkh118uf1v
15e24de0f7aa mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 5 seconds ago Up 4 seconds myservice.2.kh7a9n3iauq759q9mtxyfs9hp
c8c8f0144cdc mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 5 seconds ago Up 4 seconds myservice.6.sjhpj5gr3xt33e3u2jycoj195
2e8e4b2c5c08 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 5 seconds ago Up 4 seconds myservice.8.2z29zowsghx66u2velublwmrh
```
On node 2:
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
53c0ae7c1dae mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 2 seconds ago Up Less than a second myservice.7.x44tvvdm3iwkt9kif35f7ykz1
9b56c627fee0 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 2 seconds ago Up Less than a second myservice.1.x7n1rm6lltw5gja3ueikze57q
d4f5927ba52c mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 2 seconds ago Up 1 second myservice.5.i97bfo9uc6oe42lymafs9rz6k
478c0d395bd7 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 2 seconds ago Up Less than a second myservice.3.yr7nkffa48lff1vrl2r1m1ucs
```
4. Scale down the number of instances. On node1:
```bash
$ docker service scale myservice=0
myservice scaled to 0
```
5. Disable and uninstall the plugin on the worker. On node2:
```bash
$ docker plugin rm -f bboreham/weave2
bboreham/weave2
```
6. Scale up the number of instances again. Observe that all containers are
scheduled on the master and not on the worker, because the plugin is not available on the worker anymore.
On node 1:
```bash
$ docker service scale myservice=8
myservice scaled to 8
```
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cf4b0ec2415e mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 36 seconds myservice.3.r7p5o208jmlzpcbm2ytl3q6n1
57c64a6a2b88 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 36 seconds myservice.4.dwoezsbb02ccstkhlqjy2xe7h
3ac68cc4e7b8 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 35 seconds myservice.5.zx4ezdrm2nwxzkrwnxthv0284
006c3cb318fc mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 36 seconds myservice.8.q0e3umt19y3h3gzo1ty336k5r
dd2ffebde435 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 36 seconds myservice.7.a77y3u22prjipnrjg7vzpv3ba
a86c74d8b84b mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 36 seconds myservice.6.z9nbn14bagitwol1biveeygl7
2846a7850ba0 mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 37 seconds myservice.2.ypufz2eh9fyhppgb89g8wtj76
e2ec01efcd8a mrjana/simpleweb@sha256:317d7f221d68c86d503119b0ea12c29de42af0a22ca087d522646ad1069a47a4 "simpleweb" 39 seconds ago Up 38 seconds myservice.1.8w7c4ttzr6zcb9sjsqyhwp3yl
```
On node 2:
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
```
@@ -1,360 +0,0 @@
---
title: "Volume plugins"
description: "How to manage data with external volume plugins"
keywords: "Examples, Usage, volume, docker, data, volumes, plugin, api"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# Write a volume plugin
Docker Engine volume plugins enable Engine deployments to be integrated with
external storage systems such as Amazon EBS, and enable data volumes to persist
beyond the lifetime of a single Docker host. See the
[plugin documentation](legacy_plugins.md) for more information.
## Changelog
### 1.13.0
- If used as part of the v2 plugin architecture, mountpoints that are part of
paths returned by the plugin must be mounted under the directory specified by
`PropagatedMount` in the plugin configuration
([#26398](https://github.com/docker/docker/pull/26398))
### 1.12.0
- Add `Status` field to `VolumeDriver.Get` response
([#21006](https://github.com/docker/docker/pull/21006#))
- Add `VolumeDriver.Capabilities` to get capabilities of the volume driver
([#22077](https://github.com/docker/docker/pull/22077))
### 1.10.0
- Add `VolumeDriver.Get` which gets the details about the volume
([#16534](https://github.com/docker/docker/pull/16534))
- Add `VolumeDriver.List` which lists all volumes owned by the driver
([#16534](https://github.com/docker/docker/pull/16534))
### 1.8.0
- Initial support for volume driver plugins
([#14659](https://github.com/docker/docker/pull/14659))
## Command-line changes
To give a container access to a volume, use the `--volume` and `--volume-driver`
flags on the `docker container run` command. The `--volume` (or `-v`) flag
accepts a volume name and path on the host, and the `--volume-driver` flag
accepts a driver type.
```bash
$ docker volume create --driver=flocker volumename
$ docker container run -it --volume volumename:/data busybox sh
```
### `--volume`
The `--volume` (or `-v`) flag takes a value that is in the format
`<volume_name>:<mountpoint>`. The two parts of the value are
separated by a colon (`:`) character.
- The volume name is a human-readable name for the volume, and cannot begin with
a `/` character. It is referred to as `volume_name` in the rest of this topic.
- The `Mountpoint` is the path on the host (v1) or in the plugin (v2) where the
volume has been made available.
### `volumedriver`
Specifying a `volumedriver` in conjunction with a `volumename` allows you to
use plugins such as [Flocker](https://github.com/ScatterHQ/flocker) to manage
volumes external to a single host, such as those on EBS.
## Create a VolumeDriver
The container creation endpoint (`/containers/create`) accepts a `VolumeDriver`
field of type `string` allowing to specify the name of the driver. If not
specified, it defaults to `"local"` (the default driver for local volumes).
## Volume plugin protocol
If a plugin registers itself as a `VolumeDriver` when activated, it must
provide the Docker Daemon with writeable paths on the host filesystem. The Docker
daemon provides these paths to containers to consume. The Docker daemon makes
the volumes available by bind-mounting the provided paths into the containers.
> **Note**: Volume plugins should *not* write data to the `/var/lib/docker/`
> directory, including `/var/lib/docker/volumes`. The `/var/lib/docker/`
> directory is reserved for Docker.
### `/VolumeDriver.Create`
**Request**:
```json
{
"Name": "volume_name",
"Opts": {}
}
```
Instruct the plugin that the user wants to create a volume, given a user
specified volume name. The plugin does not need to actually manifest the
volume on the filesystem yet (until `Mount` is called).
`Opts` is a map of driver specific options passed through from the user request.
**Response**:
```json
{
"Err": ""
}
```
Respond with a string error if an error occurred.
### `/VolumeDriver.Remove`
**Request**:
```json
{
"Name": "volume_name"
}
```
Delete the specified volume from disk. This request is issued when a user
invokes `docker rm -v` to remove volumes associated with a container.
**Response**:
```json
{
"Err": ""
}
```
Respond with a string error if an error occurred.
### `/VolumeDriver.Mount`
**Request**:
```json
{
"Name": "volume_name",
"ID": "b87d7442095999a92b65b3d9691e697b61713829cc0ffd1bb72e4ccd51aa4d6c"
}
```
Docker requires the plugin to provide a volume, given a user specified volume
name. `Mount` is called once per container start. If the same `volume_name` is requested
more than once, the plugin may need to keep track of each new mount request and provision
at the first mount request and deprovision at the last corresponding unmount request.
`ID` is a unique ID for the caller that is requesting the mount.
**Response**:
- **v1**:
```json
{
"Mountpoint": "/path/to/directory/on/host",
"Err": ""
}
```
- **v2**:
```json
{
"Mountpoint": "/path/under/PropagatedMount",
"Err": ""
}
```
`Mountpoint` is the path on the host (v1) or in the plugin (v2) where the volume
has been made available.
`Err` is either empty or contains an error string.
### `/VolumeDriver.Path`
**Request**:
```json
{
"Name": "volume_name"
}
```
Request the path to the volume with the given `volume_name`.
**Response**:
- **v1**:
```json
{
"Mountpoin": "/path/to/directory/on/host",
"Err": ""
}
```
- **v2**:
```json
{
"Mountpoint": "/path/under/PropagatedMount",
"Err": ""
}
```
Respond with the path on the host (v1) or inside the plugin (v2) where the
volume has been made available, and/or a string error if an error occurred.
`Mountpoint` is optional. However, the plugin may be queried again later if one
is not provided.
### `/VolumeDriver.Unmount`
**Request**:
```json
{
"Name": "volume_name",
"ID": "b87d7442095999a92b65b3d9691e697b61713829cc0ffd1bb72e4ccd51aa4d6c"
}
```
Docker is no longer using the named volume. `Unmount` is called once per
container stop. Plugin may deduce that it is safe to deprovision the volume at
this point.
`ID` is a unique ID for the caller that is requesting the mount.
**Response**:
```json
{
"Err": ""
}
```
Respond with a string error if an error occurred.
### `/VolumeDriver.Get`
**Request**:
```json
{
"Name": "volume_name"
}
```
Get info about `volume_name`.
**Response**:
- **v1**:
```json
{
"Volume": {
"Name": "volume_name",
"Mountpoint": "/path/to/directory/on/host",
"Status": {}
},
"Err": ""
}
```
- **v2**:
```json
{
"Volume": {
"Name": "volume_name",
"Mountpoint": "/path/under/PropagatedMount",
"Status": {}
},
"Err": ""
}
```
Respond with a string error if an error occurred. `Mountpoint` and `Status` are
optional.
### /VolumeDriver.List
**Request**:
```json
{}
```
Get the list of volumes registered with the plugin.
**Response**:
- **v1**:
```json
{
"Volumes": [
{
"Name": "volume_name",
"Mountpoint": "/path/to/directory/on/host"
}
],
"Err": ""
}
```
- **v2**:
```json
{
"Volumes": [
{
"Name": "volume_name",
"Mountpoint": "/path/under/PropagatedMount"
}
],
"Err": ""
}
```
Respond with a string error if an error occurred. `Mountpoint` is optional.
### /VolumeDriver.Capabilities
**Request**:
```json
{}
```
Get the list of capabilities the driver supports.
The driver is not required to implement `Capabilities`. If it is not
implemented, the default values are used.
**Response**:
```json
{
"Capabilities": {
"Scope": "global"
}
}
```
Supported scopes are `global` and `local`. Any other value in `Scope` will be
ignored, and `local` is used. `Scope` allows cluster managers to handle the
volume in different ways. For instance, a scope of `global`, signals to the
cluster manager that it only needs to create the volume once instead of on each
Docker host. More capabilities may be added in the future.
File diff suppressed because it is too large Load Diff
@@ -1,160 +0,0 @@
---
title: "attach"
description: "The attach command description and usage"
keywords: "attach, running, container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# attach
```markdown
Usage: docker attach [OPTIONS] CONTAINER
Attach local standard input, output, and error streams to a running container
Options:
--detach-keys string Override the key sequence for detaching a container
--help Print usage
--no-stdin Do not attach STDIN
--sig-proxy Proxy all received signals to the process (default true)
```
## Description
Use `docker attach` to attach your terminal's standard input, output, and error
(or any combination of the three) to a running container using the container's
ID or name. This allows you to view its ongoing output or to control it
interactively, as though the commands were running directly in your terminal.
> **Note:**
> The `attach` command will display the output of the `ENTRYPOINT/CMD` process. This
> can appear as if the attach command is hung when in fact the process may simply
> not be interacting with the terminal at that time.
You can attach to the same contained process multiple times simultaneously,
even as a different user with the appropriate permissions.
To stop a container, use `CTRL-c`. This key sequence sends `SIGKILL` to the
container. If `--sig-proxy` is true (the default),`CTRL-c` sends a `SIGINT` to
the container. You can detach from a container and leave it running using the
`CTRL-p CTRL-q` key sequence.
> **Note:**
> A process running as PID 1 inside a container is treated specially by
> Linux: it ignores any signal with the default action. So, the process
> will not terminate on `SIGINT` or `SIGTERM` unless it is coded to do
> so.
It is forbidden to redirect the standard input of a `docker attach` command
while attaching to a tty-enabled container (i.e.: launched with `-t`).
While a client is connected to container's stdio using `docker attach`, Docker
uses a ~1MB memory buffer to maximize the throughput of the application. If
this buffer is filled, the speed of the API connection will start to have an
effect on the process output writing speed. This is similar to other
applications like SSH. Because of this, it is not recommended to run
performance critical applications that generate a lot of output in the
foreground over a slow client connection. Instead, users should use the
`docker logs` command to get access to the logs.
### Override the detach sequence
If you want, you can configure an override the Docker key sequence for detach.
This is useful if the Docker default sequence conflicts with key sequence you
use for other applications. There are two ways to define your own detach key
sequence, as a per-container override or as a configuration property on your
entire configuration.
To override the sequence for an individual container, use the
`--detach-keys="<sequence>"` flag with the `docker attach` command. The format of
the `<sequence>` is either a letter [a-Z], or the `ctrl-` combined with any of
the following:
* `a-z` (a single lowercase alpha character )
* `@` (at sign)
* `[` (left bracket)
* `\\` (two backward slashes)
* `_` (underscore)
* `^` (caret)
These `a`, `ctrl-a`, `X`, or `ctrl-\\` values are all examples of valid key
sequences. To configure a different configuration default key sequence for all
containers, see [**Configuration file** section](cli.md#configuration-files).
## Examples
### Attach to and detach from a running container
```bash
$ docker run -d --name topdemo ubuntu /usr/bin/top -b
$ docker attach topdemo
top - 02:05:52 up 3:05, 0 users, load average: 0.01, 0.02, 0.05
Tasks: 1 total, 1 running, 0 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.1%us, 0.2%sy, 0.0%ni, 99.7%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 373572k total, 355560k used, 18012k free, 27872k buffers
Swap: 786428k total, 0k used, 786428k free, 221740k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 17200 1116 912 R 0 0.3 0:00.03 top
top - 02:05:55 up 3:05, 0 users, load average: 0.01, 0.02, 0.05
Tasks: 1 total, 1 running, 0 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.0%us, 0.2%sy, 0.0%ni, 99.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 373572k total, 355244k used, 18328k free, 27872k buffers
Swap: 786428k total, 0k used, 786428k free, 221776k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 17208 1144 932 R 0 0.3 0:00.03 top
top - 02:05:58 up 3:06, 0 users, load average: 0.01, 0.02, 0.05
Tasks: 1 total, 1 running, 0 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.3%sy, 0.0%ni, 99.5%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 373572k total, 355780k used, 17792k free, 27880k buffers
Swap: 786428k total, 0k used, 786428k free, 221776k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1 root 20 0 17208 1144 932 R 0 0.3 0:00.03 top
^C$
$ echo $?
0
$ docker ps -a | grep topdemo
7998ac8581f9 ubuntu:14.04 "/usr/bin/top -b" 38 seconds ago Exited (0) 21 seconds ago topdemo
```
### Get the exit code of the container's command
And in this second example, you can see the exit code returned by the `bash`
process is returned by the `docker attach` command to its caller too:
```bash
$ docker run --name test -d -it debian
275c44472aebd77c926d4527885bb09f2f6db21d878c75f0a1c212c03d3bcfab
$ docker attach test
root@f38c87f2a42d:/# exit 13
exit
$ echo $?
13
$ docker ps -a | grep test
275c44472aeb debian:7 "/bin/bash" 26 seconds ago Exited (13) 17 seconds ago test
```
@@ -1,581 +0,0 @@
---
title: "build"
description: "The build command description and usage"
keywords: "build, docker, image"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# build
```markdown
Usage: docker build [OPTIONS] PATH | URL | -
Build an image from a Dockerfile
Options:
--add-host value Add a custom host-to-IP mapping (host:ip) (default [])
--build-arg value Set build-time variables (default [])
--cache-from value Images to consider as cache sources (default [])
--cgroup-parent string Optional parent cgroup for the container
--compress Compress the build context using gzip
--cpu-period int Limit the CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit the CPU CFS (Completely Fair Scheduler) quota
-c, --cpu-shares int CPU shares (relative weight)
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
--disable-content-trust Skip image verification (default true)
-f, --file string Name of the Dockerfile (Default is 'PATH/Dockerfile')
--force-rm Always remove intermediate containers
--help Print usage
--iidfile string Write the image ID to the file
--isolation string Container isolation technology
--label value Set metadata for an image (default [])
-m, --memory string Memory limit
--memory-swap string Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--network string Set the networking mode for the RUN instructions during build
'bridge': use default Docker bridge
'none': no networking
'container:<name|id>': reuse another container's network stack
'host': use the Docker host network stack
'<network-name>|<network-id>': connect to a user-defined network
--no-cache Do not use cache when building the image
--pull Always attempt to pull a newer version of the image
-q, --quiet Suppress the build output and print image ID on success
--rm Remove intermediate containers after a successful build (default true)
--security-opt value Security Options (default [])
--shm-size bytes Size of /dev/shm
The format is `<number><unit>`. `number` must be greater than `0`.
Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes),
or `g` (gigabytes). If you omit the unit, the system uses bytes.
--squash Squash newly built layers into a single new layer (**Experimental Only**)
-t, --tag value Name and optionally a tag in the 'name:tag' format (default [])
--target string Set the target build stage to build.
--ulimit value Ulimit options (default [])
```
## Description
Builds Docker images from a Dockerfile and a "context". A build's context is
the files located in the specified `PATH` or `URL`. The build process can refer
to any of the files in the context. For example, your build can use an
[*ADD*](../builder.md#add) instruction to reference a file in the
context.
The `URL` parameter can refer to three kinds of resources: Git repositories,
pre-packaged tarball contexts and plain text files.
### Git repositories
When the `URL` parameter points to the location of a Git repository, the
repository acts as the build context. The system recursively fetches the
repository and its submodules. The commit history is not preserved. A
repository is first pulled into a temporary directory on your local host. After
the that succeeds, the directory is sent to the Docker daemon as the context.
Local copy gives you the ability to access private repositories using local
user credentials, VPN's, and so forth.
> **Note:**
> If the `URL` parameter contains a fragment the system will recursively clone
> the repository and its submodules using a `git clone --recursive` command.
Git URLs accept context configuration in their fragment section, separated by a
colon `:`. The first part represents the reference that Git will check out,
this can be either a branch, a tag, or a remote reference. The second part
represents a subdirectory inside the repository that will be used as a build
context.
For example, run this command to use a directory called `docker` in the branch
`container`:
```bash
$ docker build https://github.com/docker/rootfs.git#container:docker
```
The following table represents all the valid suffixes with their build
contexts:
Build Syntax Suffix | Commit Used | Build Context Used
--------------------------------|-----------------------|-------------------
`myrepo.git` | `refs/heads/master` | `/`
`myrepo.git#mytag` | `refs/tags/mytag` | `/`
`myrepo.git#mybranch` | `refs/heads/mybranch` | `/`
`myrepo.git#pull/42/head` | `refs/pull/42/head` | `/`
`myrepo.git#:myfolder` | `refs/heads/master` | `/myfolder`
`myrepo.git#master:myfolder` | `refs/heads/master` | `/myfolder`
`myrepo.git#mytag:myfolder` | `refs/tags/mytag` | `/myfolder`
`myrepo.git#mybranch:myfolder` | `refs/heads/mybranch` | `/myfolder`
### Tarball contexts
If you pass an URL to a remote tarball, the URL itself is sent to the daemon:
```bash
$ docker build http://server/context.tar.gz
```
The download operation will be performed on the host the Docker daemon is
running on, which is not necessarily the same host from which the build command
is being issued. The Docker daemon will fetch `context.tar.gz` and use it as the
build context. Tarball contexts must be tar archives conforming to the standard
`tar` UNIX format and can be compressed with any one of the 'xz', 'bzip2',
'gzip' or 'identity' (no compression) formats.
### Text files
Instead of specifying a context, you can pass a single `Dockerfile` in the
`URL` or pipe the file in via `STDIN`. To pipe a `Dockerfile` from `STDIN`:
```bash
$ docker build - < Dockerfile
```
With Powershell on Windows, you can run:
```powershell
Get-Content Dockerfile | docker build -
```
If you use `STDIN` or specify a `URL` pointing to a plain text file, the system
places the contents into a file called `Dockerfile`, and any `-f`, `--file`
option is ignored. In this scenario, there is no context.
By default the `docker build` command will look for a `Dockerfile` at the root
of the build context. The `-f`, `--file`, option lets you specify the path to
an alternative file to use instead. This is useful in cases where the same set
of files are used for multiple builds. The path must be to a file within the
build context. If a relative path is specified then it is interpreted as
relative to the root of the context.
In most cases, it's best to put each Dockerfile in an empty directory. Then,
add to that directory only the files needed for building the Dockerfile. To
increase the build's performance, you can exclude files and directories by
adding a `.dockerignore` file to that directory as well. For information on
creating one, see the [.dockerignore file](../builder.md#dockerignore-file).
If the Docker client loses connection to the daemon, the build is canceled.
This happens if you interrupt the Docker client with `CTRL-c` or if the Docker
client is killed for any reason. If the build initiated a pull which is still
running at the time the build is cancelled, the pull is cancelled as well.
## Return code
On a successful build, a return code of success `0` will be returned. When the
build fails, a non-zero failure code will be returned.
There should be informational output of the reason for failure output to
`STDERR`:
```bash
$ docker build -t fail .
Sending build context to Docker daemon 2.048 kB
Sending build context to Docker daemon
Step 1/3 : FROM busybox
---> 4986bf8c1536
Step 2/3 : RUN exit 13
---> Running in e26670ec7a0a
INFO[0000] The command [/bin/sh -c exit 13] returned a non-zero code: 13
$ echo $?
1
```
See also:
[*Dockerfile Reference*](../builder.md).
## Examples
### Build with PATH
```bash
$ docker build .
Uploading context 10240 bytes
Step 1/3 : FROM busybox
Pulling repository busybox
---> e9aa60c60128MB/2.284 MB (100%) endpoint: https://cdn-registry-1.docker.io/v1/
Step 2/3 : RUN ls -lh /
---> Running in 9c9e81692ae9
total 24
drwxr-xr-x 2 root root 4.0K Mar 12 2013 bin
drwxr-xr-x 5 root root 4.0K Oct 19 00:19 dev
drwxr-xr-x 2 root root 4.0K Oct 19 00:19 etc
drwxr-xr-x 2 root root 4.0K Nov 15 23:34 lib
lrwxrwxrwx 1 root root 3 Mar 12 2013 lib64 -> lib
dr-xr-xr-x 116 root root 0 Nov 15 23:34 proc
lrwxrwxrwx 1 root root 3 Mar 12 2013 sbin -> bin
dr-xr-xr-x 13 root root 0 Nov 15 23:34 sys
drwxr-xr-x 2 root root 4.0K Mar 12 2013 tmp
drwxr-xr-x 2 root root 4.0K Nov 15 23:34 usr
---> b35f4035db3f
Step 3/3 : CMD echo Hello world
---> Running in 02071fceb21b
---> f52f38b7823e
Successfully built f52f38b7823e
Removing intermediate container 9c9e81692ae9
Removing intermediate container 02071fceb21b
```
This example specifies that the `PATH` is `.`, and so all the files in the
local directory get `tar`d and sent to the Docker daemon. The `PATH` specifies
where to find the files for the "context" of the build on the Docker daemon.
Remember that the daemon could be running on a remote machine and that no
parsing of the Dockerfile happens at the client side (where you're running
`docker build`). That means that *all* the files at `PATH` get sent, not just
the ones listed to [*ADD*](../builder.md#add) in the Dockerfile.
The transfer of context from the local machine to the Docker daemon is what the
`docker` client means when you see the "Sending build context" message.
If you wish to keep the intermediate containers after the build is complete,
you must use `--rm=false`. This does not affect the build cache.
### Build with URL
```bash
$ docker build github.com/creack/docker-firefox
```
This will clone the GitHub repository and use the cloned repository as context.
The Dockerfile at the root of the repository is used as Dockerfile. You can
specify an arbitrary Git repository by using the `git://` or `git@` scheme.
```bash
$ docker build -f ctx/Dockerfile http://server/ctx.tar.gz
Downloading context: http://server/ctx.tar.gz [===================>] 240 B/240 B
Step 1/3 : FROM busybox
---> 8c2e06607696
Step 2/3 : ADD ctx/container.cfg /
---> e7829950cee3
Removing intermediate container b35224abf821
Step 3/3 : CMD /bin/ls
---> Running in fbc63d321d73
---> 3286931702ad
Removing intermediate container fbc63d321d73
Successfully built 377c409b35e4
```
This sends the URL `http://server/ctx.tar.gz` to the Docker daemon, which
downloads and extracts the referenced tarball. The `-f ctx/Dockerfile`
parameter specifies a path inside `ctx.tar.gz` to the `Dockerfile` that is used
to build the image. Any `ADD` commands in that `Dockerfile` that refers to local
paths must be relative to the root of the contents inside `ctx.tar.gz`. In the
example above, the tarball contains a directory `ctx/`, so the `ADD
ctx/container.cfg /` operation works as expected.
### Build with -
```bash
$ docker build - < Dockerfile
```
This will read a Dockerfile from `STDIN` without context. Due to the lack of a
context, no contents of any local directory will be sent to the Docker daemon.
Since there is no context, a Dockerfile `ADD` only works if it refers to a
remote URL.
```bash
$ docker build - < context.tar.gz
```
This will build an image for a compressed context read from `STDIN`. Supported
formats are: bzip2, gzip and xz.
### Use a .dockerignore file
```bash
$ docker build .
Uploading context 18.829 MB
Uploading context
Step 1/2 : FROM busybox
---> 769b9341d937
Step 2/2 : CMD echo Hello world
---> Using cache
---> 99cc1ad10469
Successfully built 99cc1ad10469
$ echo ".git" > .dockerignore
$ docker build .
Uploading context 6.76 MB
Uploading context
Step 1/2 : FROM busybox
---> 769b9341d937
Step 2/2 : CMD echo Hello world
---> Using cache
---> 99cc1ad10469
Successfully built 99cc1ad10469
```
This example shows the use of the `.dockerignore` file to exclude the `.git`
directory from the context. Its effect can be seen in the changed size of the
uploaded context. The builder reference contains detailed information on
[creating a .dockerignore file](../builder.md#dockerignore-file)
### Tag an image (-t)
```bash
$ docker build -t vieux/apache:2.0 .
```
This will build like the previous example, but it will then tag the resulting
image. The repository name will be `vieux/apache` and the tag will be `2.0`.
[Read more about valid tags](tag.md).
You can apply multiple tags to an image. For example, you can apply the `latest`
tag to a newly built image and add another tag that references a specific
version.
For example, to tag an image both as `whenry/fedora-jboss:latest` and
`whenry/fedora-jboss:v2.1`, use the following:
```bash
$ docker build -t whenry/fedora-jboss:latest -t whenry/fedora-jboss:v2.1 .
```
### Specify a Dockerfile (-f)
```bash
$ docker build -f Dockerfile.debug .
```
This will use a file called `Dockerfile.debug` for the build instructions
instead of `Dockerfile`.
```bash
$ curl example.com/remote/Dockerfile | docker build -f - .
```
The above command will use the current directory as the build context and read
a Dockerfile from stdin.
```bash
$ docker build -f dockerfiles/Dockerfile.debug -t myapp_debug .
$ docker build -f dockerfiles/Dockerfile.prod -t myapp_prod .
```
The above commands will build the current build context (as specified by the
`.`) twice, once using a debug version of a `Dockerfile` and once using a
production version.
```bash
$ cd /home/me/myapp/some/dir/really/deep
$ docker build -f /home/me/myapp/dockerfiles/debug /home/me/myapp
$ docker build -f ../../../../dockerfiles/debug /home/me/myapp
```
These two `docker build` commands do the exact same thing. They both use the
contents of the `debug` file instead of looking for a `Dockerfile` and will use
`/home/me/myapp` as the root of the build context. Note that `debug` is in the
directory structure of the build context, regardless of how you refer to it on
the command line.
> **Note:**
> `docker build` will return a `no such file or directory` error if the
> file or directory does not exist in the uploaded context. This may
> happen if there is no context, or if you specify a file that is
> elsewhere on the Host system. The context is limited to the current
> directory (and its children) for security reasons, and to ensure
> repeatable builds on remote Docker hosts. This is also the reason why
> `ADD ../file` will not work.
### Use a custom parent cgroup (--cgroup-parent)
When `docker build` is run with the `--cgroup-parent` option the containers
used in the build will be run with the [corresponding `docker run`
flag](../run.md#specifying-custom-cgroups).
### Set ulimits in container (--ulimit)
Using the `--ulimit` option with `docker build` will cause each build step's
container to be started using those [`--ulimit`
flag values](./run.md#set-ulimits-in-container-ulimit).
### Set build-time variables (--build-arg)
You can use `ENV` instructions in a Dockerfile to define variable
values. These values persist in the built image. However, often
persistence is not what you want. Users want to specify variables differently
depending on which host they build an image on.
A good example is `http_proxy` or source versions for pulling intermediate
files. The `ARG` instruction lets Dockerfile authors define values that users
can set at build-time using the `--build-arg` flag:
```bash
$ docker build --build-arg HTTP_PROXY=http://10.20.30.2:1234 .
```
This flag allows you to pass the build-time variables that are
accessed like regular environment variables in the `RUN` instruction of the
Dockerfile. Also, these values don't persist in the intermediate or final images
like `ENV` values do.
Using this flag will not alter the output you see when the `ARG` lines from the
Dockerfile are echoed during the build process.
For detailed information on using `ARG` and `ENV` instructions, see the
[Dockerfile reference](../builder.md).
### Optional security options (--security-opt)
This flag is only supported on a daemon running on Windows, and only supports
the `credentialspec` option. The `credentialspec` must be in the format
`file://spec.txt` or `registry://keyname`.
### Specify isolation technology for container (--isolation)
This option is useful in situations where you are running Docker containers on
Windows. The `--isolation=<value>` option sets a container's isolation
technology. On Linux, the only supported is the `default` option which uses
Linux namespaces. On Microsoft Windows, you can specify these values:
| Value | Description |
|-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `default` | Use the value specified by the Docker daemon's `--exec-opt` . If the `daemon` does not specify an isolation technology, Microsoft Windows uses `process` as its default value. |
| `process` | Namespace isolation only. |
| `hyperv` | Hyper-V hypervisor partition-based isolation. |
Specifying the `--isolation` flag without a value is the same as setting `--isolation="default"`.
### Add entries to container hosts file (--add-host)
You can add other hosts into a container's `/etc/hosts` file by using one or
more `--add-host` flags. This example adds a static address for a host named
`docker`:
$ docker build --add-host=docker:10.180.0.1 .
### Specifying target build stage (--target)
When building a Dockerfile with multiple build stages, `--target` can be used to
specify an intermediate build stage by name as a final stage for the resulting
image. Commands after the target stage will be skipped.
```Dockerfile
FROM debian AS build-env
...
FROM alpine AS production-env
...
```
```bash
$ docker build -t mybuildimage --target build-env .
```
### Squash an image's layers (--squash) **Experimental Only**
#### Overview
Once the image is built, squash the new layers into a new image with a single
new layer. Squashing does not destroy any existing image, rather it creates a new
image with the content of the squashed layers. This effectively makes it look
like all `Dockerfile` commands were created with a single layer. The build
cache is preserved with this method.
**Note**: using this option means the new image will not be able to take
advantage of layer sharing with other images and may use significantly more
space.
**Note**: using this option you may see significantly more space used due to
storing two copies of the image, one for the build cache with all the cache
layers in tact, and one for the squashed version.
#### Prerequisites
The example on this page is using experimental mode in Docker 1.13.
Experimental mode can be enabled by using the `--experimental` flag when starting the Docker daemon or setting `experimental: true` in the `daemon.json` configuration file.
By default, experimental mode is disabled. To see the current configuration, use the `docker version` command.
```none
Server:
Version: 1.13.1
API version: 1.26 (minimum version 1.12)
Go version: go1.7.5
Git commit: 092cba3
Built: Wed Feb 8 06:35:24 2017
OS/Arch: linux/amd64
Experimental: false
[...]
```
To enable experimental mode, users need to restart the docker daemon with the experimental flag enabled.
#### Enable Docker experimental
Experimental features are now included in the standard Docker binaries as of version 1.13.0. For enabling experimental features, you need to start the Docker daemon with `--experimental` flag. You can also enable the daemon flag via /etc/docker/daemon.json. e.g.
```
{
"experimental": true
}
```
Then make sure the experimental flag is enabled:
```bash
$ docker version -f '{{.Server.Experimental}}'
true
```
#### Build an image with `--squash` argument
The following is an example of docker build with `--squash` argument
```Dockerfile
FROM busybox
RUN echo hello > /hello
RUN echo world >> /hello
RUN touch remove_me /remove_me
ENV HELLO world
RUN rm /remove_me
```
An image named `test` is built with `--squash` argument.
```bash
$ docker build --squash -t test .
[...]
```
If everything is right, the history will look like this:
```bash
$ docker history test
IMAGE CREATED CREATED BY SIZE COMMENT
4e10cb5b4cac 3 seconds ago 12 B merge sha256:88a7b0112a41826885df0e7072698006ee8f621c6ab99fca7fe9151d7b599702 to sha256:47bcc53f74dc94b1920f0b34f6036096526296767650f223433fe65c35f149eb
<missing> 5 minutes ago /bin/sh -c rm /remove_me 0 B
<missing> 5 minutes ago /bin/sh -c #(nop) ENV HELLO=world 0 B
<missing> 5 minutes ago /bin/sh -c touch remove_me /remove_me 0 B
<missing> 5 minutes ago /bin/sh -c echo world >> /hello 0 B
<missing> 6 minutes ago /bin/sh -c echo hello > /hello 0 B
<missing> 7 weeks ago /bin/sh -c #(nop) CMD ["sh"] 0 B
<missing> 7 weeks ago /bin/sh -c #(nop) ADD file:47ca6e777c36a4cfff 1.113 MB
```
We could find that all layer's name is `<missing>`, and there is a new layer with COMMENT `merge`.
Test the image, check for `/remove_me` being gone, make sure `hello\nworld` is in `/hello`, make sure the `HELLO` envvar's value is `world`.
@@ -1,317 +0,0 @@
---
title: "Use the Docker command line"
description: "Docker's CLI command description and usage"
keywords: "Docker, Docker documentation, CLI, command line"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# docker
To list available commands, either run `docker` with no parameters
or execute `docker help`:
```bash
$ docker
Usage: docker [OPTIONS] COMMAND [ARG...]
docker [ --help | -v | --version ]
A self-sufficient runtime for containers.
Options:
--config string Location of client config files (default "/root/.docker")
-D, --debug Enable debug mode
--help Print usage
-H, --host value Daemon socket(s) to connect to (default [])
-l, --log-level string Set the logging level ("debug"|"info"|"warn"|"error"|"fatal") (default "info")
--tls Use TLS; implied by --tlsverify
--tlscacert string Trust certs signed only by this CA (default "/root/.docker/ca.pem")
--tlscert string Path to TLS certificate file (default "/root/.docker/cert.pem")
--tlskey string Path to TLS key file (default "/root/.docker/key.pem")
--tlsverify Use TLS and verify the remote
-v, --version Print version information and quit
Commands:
attach Attach to a running container
# […]
```
## Description
Depending on your Docker system configuration, you may be required to preface
each `docker` command with `sudo`. To avoid having to use `sudo` with the
`docker` command, your system administrator can create a Unix group called
`docker` and add users to it.
For more information about installing Docker or `sudo` configuration, refer to
the [installation](https://docs.docker.com/engine/installation/) instructions for your operating system.
### Environment variables
For easy reference, the following list of environment variables are supported
by the `docker` command line:
* `DOCKER_API_VERSION` The API version to use (e.g. `1.19`)
* `DOCKER_CONFIG` The location of your client configuration files.
* `DOCKER_CERT_PATH` The location of your authentication keys.
* `DOCKER_DRIVER` The graph driver to use.
* `DOCKER_HOST` Daemon socket to connect to.
* `DOCKER_NOWARN_KERNEL_VERSION` Prevent warnings that your Linux kernel is
unsuitable for Docker.
* `DOCKER_RAMDISK` If set this will disable 'pivot_root'.
* `DOCKER_TLS_VERIFY` When set Docker uses TLS and verifies the remote.
* `DOCKER_CONTENT_TRUST` When set Docker uses notary to sign and verify images.
Equates to `--disable-content-trust=false` for build, create, pull, push, run.
* `DOCKER_CONTENT_TRUST_SERVER` The URL of the Notary server to use. This defaults
to the same URL as the registry.
* `DOCKER_HIDE_LEGACY_COMMANDS` When set, Docker hides "legacy" top-level commands (such as `docker rm`, and
`docker pull`) in `docker help` output, and only `Management commands` per object-type (e.g., `docker container`) are
printed. This may become the default in a future release, at which point this environment-variable is removed.
* `DOCKER_TMPDIR` Location for temporary Docker files.
Because Docker is developed using Go, you can also use any environment
variables used by the Go runtime. In particular, you may find these useful:
* `HTTP_PROXY`
* `HTTPS_PROXY`
* `NO_PROXY`
These Go environment variables are case-insensitive. See the
[Go specification](http://golang.org/pkg/net/http/) for details on these
variables.
### Configuration files
By default, the Docker command line stores its configuration files in a
directory called `.docker` within your `$HOME` directory. However, you can
specify a different location via the `DOCKER_CONFIG` environment variable
or the `--config` command line option. If both are specified, then the
`--config` option overrides the `DOCKER_CONFIG` environment variable.
For example:
docker --config ~/testconfigs/ ps
Instructs Docker to use the configuration files in your `~/testconfigs/`
directory when running the `ps` command.
Docker manages most of the files in the configuration directory
and you should not modify them. However, you *can modify* the
`config.json` file to control certain aspects of how the `docker`
command behaves.
Currently, you can modify the `docker` command behavior using environment
variables or command-line options. You can also use options within
`config.json` to modify some of the same behavior. When using these
mechanisms, you must keep in mind the order of precedence among them. Command
line options override environment variables and environment variables override
properties you specify in a `config.json` file.
The `config.json` file stores a JSON encoding of several properties:
The property `HttpHeaders` specifies a set of headers to include in all messages
sent from the Docker client to the daemon. Docker does not try to interpret or
understand these header; it simply puts them into the messages. Docker does
not allow these headers to change any headers it sets for itself.
The property `psFormat` specifies the default format for `docker ps` output.
When the `--format` flag is not provided with the `docker ps` command,
Docker's client uses this property. If this property is not set, the client
falls back to the default table format. For a list of supported formatting
directives, see the
[**Formatting** section in the `docker ps` documentation](ps.md)
The property `imagesFormat` specifies the default format for `docker images` output.
When the `--format` flag is not provided with the `docker images` command,
Docker's client uses this property. If this property is not set, the client
falls back to the default table format. For a list of supported formatting
directives, see the [**Formatting** section in the `docker images` documentation](images.md)
The property `pluginsFormat` specifies the default format for `docker plugin ls` output.
When the `--format` flag is not provided with the `docker plugin ls` command,
Docker's client uses this property. If this property is not set, the client
falls back to the default table format. For a list of supported formatting
directives, see the [**Formatting** section in the `docker plugin ls` documentation](plugin_ls.md)
The property `servicesFormat` specifies the default format for `docker
service ls` output. When the `--format` flag is not provided with the
`docker service ls` command, Docker's client uses this property. If this
property is not set, the client falls back to the default json format. For a
list of supported formatting directives, see the
[**Formatting** section in the `docker service ls` documentation](service_ls.md)
The property `serviceInspectFormat` specifies the default format for `docker
service inspect` output. When the `--format` flag is not provided with the
`docker service inspect` command, Docker's client uses this property. If this
property is not set, the client falls back to the default json format. For a
list of supported formatting directives, see the
[**Formatting** section in the `docker service inspect` documentation](service_inspect.md)
The property `statsFormat` specifies the default format for `docker
stats` output. When the `--format` flag is not provided with the
`docker stats` command, Docker's client uses this property. If this
property is not set, the client falls back to the default table
format. For a list of supported formatting directives, see
[**Formatting** section in the `docker stats` documentation](stats.md)
The property `secretFormat` specifies the default format for `docker
secret ls` output. When the `--format` flag is not provided with the
`docker secret ls` command, Docker's client uses this property. If this
property is not set, the client falls back to the default table
format. For a list of supported formatting directives, see
[**Formatting** section in the `docker secret ls` documentation](secret_ls.md)
The property `nodesFormat` specifies the default format for `docker node ls` output.
When the `--format` flag is not provided with the `docker node ls` command,
Docker's client uses the value of `nodesFormat`. If the value of `nodesFormat` is not set,
the client uses the default table format. For a list of supported formatting
directives, see the [**Formatting** section in the `docker node ls` documentation](node_ls.md)
The property `configFormat` specifies the default format for `docker
config ls` output. When the `--format` flag is not provided with the
`docker config ls` command, Docker's client uses this property. If this
property is not set, the client falls back to the default table
format. For a list of supported formatting directives, see
[**Formatting** section in the `docker config ls` documentation](config_ls.md)
The property `credsStore` specifies an external binary to serve as the default
credential store. When this property is set, `docker login` will attempt to
store credentials in the binary specified by `docker-credential-<value>` which
is visible on `$PATH`. If this property is not set, credentials will be stored
in the `auths` property of the config. For more information, see the
[**Credentials store** section in the `docker login` documentation](login.md#credentials-store)
The property `credHelpers` specifies a set of credential helpers to use
preferentially over `credsStore` or `auths` when storing and retrieving
credentials for specific registries. If this property is set, the binary
`docker-credential-<value>` will be used when storing or retrieving credentials
for a specific registry. For more information, see the
[**Credential helpers** section in the `docker login` documentation](login.md#credential-helpers)
Once attached to a container, users detach from it and leave it running using
the using `CTRL-p CTRL-q` key sequence. This detach key sequence is customizable
using the `detachKeys` property. Specify a `<sequence>` value for the
property. The format of the `<sequence>` is a comma-separated list of either
a letter [a-Z], or the `ctrl-` combined with any of the following:
* `a-z` (a single lowercase alpha character )
* `@` (at sign)
* `[` (left bracket)
* `\\` (two backward slashes)
* `_` (underscore)
* `^` (caret)
Your customization applies to all containers started in with your Docker client.
Users can override your custom or the default key sequence on a per-container
basis. To do this, the user specifies the `--detach-keys` flag with the `docker
attach`, `docker exec`, `docker run` or `docker start` command.
Following is a sample `config.json` file:
```json
{
"HttpHeaders": {
"MyHeader": "MyValue"
},
"psFormat": "table {{.ID}}\\t{{.Image}}\\t{{.Command}}\\t{{.Labels}}",
"imagesFormat": "table {{.ID}}\\t{{.Repository}}\\t{{.Tag}}\\t{{.CreatedAt}}",
"pluginsFormat": "table {{.ID}}\t{{.Name}}\t{{.Enabled}}",
"statsFormat": "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}",
"servicesFormat": "table {{.ID}}\t{{.Name}}\t{{.Mode}}",
"secretFormat": "table {{.ID}}\t{{.Name}}\t{{.CreatedAt}}\t{{.UpdatedAt}}",
"configFormat": "table {{.ID}}\t{{.Name}}\t{{.CreatedAt}}\t{{.UpdatedAt}}",
"serviceInspectFormat": "pretty",
"nodesFormat": "table {{.ID}}\t{{.Hostname}}\t{{.Availability}}",
"detachKeys": "ctrl-e,e",
"credsStore": "secretservice",
"credHelpers": {
"awesomereg.example.org": "hip-star",
"unicorn.example.com": "vcbait"
}
}
```
### Notary
If using your own notary server and a self-signed certificate or an internal
Certificate Authority, you need to place the certificate at
`tls/<registry_url>/ca.crt` in your docker config directory.
Alternatively you can trust the certificate globally by adding it to your system's
list of root Certificate Authorities.
## Examples
### Display help text
To list the help on any command just execute the command, followed by the
`--help` option.
$ docker run --help
Usage: docker run [OPTIONS] IMAGE [COMMAND] [ARG...]
Run a command in a new container
Options:
--add-host value Add a custom host-to-IP mapping (host:ip) (default [])
-a, --attach value Attach to STDIN, STDOUT or STDERR (default [])
...
### Option types
Single character command line options can be combined, so rather than
typing `docker run -i -t --name test busybox sh`,
you can write `docker run -it --name test busybox sh`.
#### Boolean
Boolean options take the form `-d=false`. The value you see in the help text is
the default value which is set if you do **not** specify that flag. If you
specify a Boolean flag without a value, this will set the flag to `true`,
irrespective of the default value.
For example, running `docker run -d` will set the value to `true`, so your
container **will** run in "detached" mode, in the background.
Options which default to `true` (e.g., `docker build --rm=true`) can only be
set to the non-default value by explicitly setting them to `false`:
```bash
$ docker build --rm=false .
```
#### Multi
You can specify options like `-a=[]` multiple times in a single command line,
for example in these commands:
```bash
$ docker run -a stdin -a stdout -i -t ubuntu /bin/bash
$ docker run -a stdin -a stdout -a stderr ubuntu /bin/ls
```
Sometimes, multiple options can call for a more complex value string as for
`-v`:
```bash
$ docker run -v /host:/container example/mysql
```
> **Note**: Do not use the `-t` and `-a stderr` options together due to
> limitations in the `pty` implementation. All `stderr` in `pty` mode
> simply goes to `stdout`.
#### Strings and Integers
Options like `--name=""` expect a string, and they
can only be specified once. Options like `-c=0`
expect an integer, and they can only be specified once.
@@ -1,117 +0,0 @@
---
title: "commit"
description: "The commit command description and usage"
keywords: "commit, file, changes"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# commit
```markdown
Usage: docker commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]
Create a new image from a container's changes
Options:
-a, --author string Author (e.g., "John Hannibal Smith <hannibal@a-team.com>")
-c, --change value Apply Dockerfile instruction to the created image (default [])
--help Print usage
-m, --message string Commit message
-p, --pause Pause container during commit (default true)
```
## Description
It can be useful to commit a container's file changes or settings into a new
image. This allows you to debug a container by running an interactive shell, or to
export a working dataset to another server. Generally, it is better to use
Dockerfiles to manage your images in a documented and maintainable way.
[Read more about valid image names and tags](tag.md).
The commit operation will not include any data contained in
volumes mounted inside the container.
By default, the container being committed and its processes will be paused
while the image is committed. This reduces the likelihood of encountering data
corruption during the process of creating the commit. If this behavior is
undesired, set the `--pause` option to false.
The `--change` option will apply `Dockerfile` instructions to the image that is
created. Supported `Dockerfile` instructions:
`CMD`|`ENTRYPOINT`|`ENV`|`EXPOSE`|`LABEL`|`ONBUILD`|`USER`|`VOLUME`|`WORKDIR`
## Examples
### Commit a container
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton
$ docker commit c3f279d17e0a svendowideit/testimage:version3
f5283438590d
$ docker images
REPOSITORY TAG ID CREATED SIZE
svendowideit/testimage version3 f5283438590d 16 seconds ago 335.7 MB
```
### Commit a container with new configurations
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton
$ docker inspect -f "{{ .Config.Env }}" c3f279d17e0a
[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin]
$ docker commit --change "ENV DEBUG true" c3f279d17e0a svendowideit/testimage:version3
f5283438590d
$ docker inspect -f "{{ .Config.Env }}" f5283438590d
[HOME=/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin DEBUG=true]
```
### Commit a container with new `CMD` and `EXPOSE` instructions
```bash
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton
$ docker commit --change='CMD ["apachectl", "-DFOREGROUND"]' -c "EXPOSE 80" c3f279d17e0a svendowideit/testimage:version4
f5283438590d
$ docker run -d svendowideit/testimage:version4
89373736e2e7f00bc149bd783073ac43d0507da250e999f3f1036e0db60817c0
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
89373736e2e7 testimage:version4 "apachectl -DFOREGROU" 3 seconds ago Up 2 seconds 80/tcp distracted_fermat
c3f279d17e0a ubuntu:12.04 /bin/bash 7 days ago Up 25 hours desperate_dubinsky
197387f1b436 ubuntu:12.04 /bin/bash 7 days ago Up 25 hours focused_hamilton
```
@@ -1,61 +0,0 @@
---
title: "container"
description: "The container command description and usage"
keywords: "container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# container
```markdown
Usage: docker container COMMAND
Manage containers
Options:
--help Print usage
Commands:
attach Attach to a running container
commit Create a new image from a container's changes
cp Copy files/folders between a container and the local filesystem
create Create a new container
diff Inspect changes to files or directories on a container's filesystem
exec Run a command in a running container
export Export a container's filesystem as a tar archive
inspect Display detailed information on one or more containers
kill Kill one or more running containers
logs Fetch the logs of a container
ls List containers
pause Pause all processes within one or more containers
port List port mappings or a specific mapping for the container
prune Remove all stopped containers
rename Rename a container
restart Restart one or more containers
rm Remove one or more containers
run Run a command in a new container
start Start one or more stopped containers
stats Display a live stream of container(s) resource usage statistics
stop Stop one or more running containers
top Display the running processes of a container
unpause Unpause all processes within one or more containers
update Update configuration of one or more containers
wait Block until one or more containers stop, then print their exit codes
Run 'docker container COMMAND --help' for more information on a command.
```
## Description
Manage containers.
@@ -1,126 +0,0 @@
---
title: "container prune"
description: "Remove all stopped containers"
keywords: container, prune, delete, remove
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# container prune
```markdown
Usage: docker container prune [OPTIONS]
Remove all stopped containers
Options:
Options:
--filter filter Provide filter values (e.g. 'until=<timestamp>')
-f, --force Do not prompt for confirmation
--help Print usage
```
## Description
Removes all stopped containers.
## Examples
### Prune containers
```bash
$ docker container prune
WARNING! This will remove all stopped containers.
Are you sure you want to continue? [y/N] y
Deleted Containers:
4a7f7eebae0f63178aff7eb0aa39cd3f0627a203ab2df258c1a00b456cf20063
f98f9c2aa1eaf727e4ec9c0283bc7d4aa4762fbdba7f26191f26c97f64090360
Total reclaimed space: 212 B
```
### Filtering
The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
The currently supported filters are:
* until (`<timestamp>`) - only remove containers created before given timestamp
* label (`label=<key>`, `label=<key>=<value>`, `label!=<key>`, or `label!=<key>=<value>`) - only remove containers with (or without, in case `label!=...` is used) the specified labels.
The `until` filter can be Unix timestamps, date formatted
timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
relative to the daemon machine’s time. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
`2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
timezone on the daemon will be used if you do not provide either a `Z` or a
`+-00:00` timezone offset at the end of the timestamp. When providing Unix
timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
fraction of a second no more than nine digits long.
The `label` filter accepts two formats. One is the `label=...` (`label=<key>` or `label=<key>=<value>`),
which removes containers with the specified labels. The other
format is the `label!=...` (`label!=<key>` or `label!=<key>=<value>`), which removes
containers without the specified labels.
The following removes containers created more than 5 minutes ago:
```bash
$ docker ps -a --format 'table {{.ID}}\t{{.Image}}\t{{.Command}}\t{{.CreatedAt}}\t{{.Status}}'
CONTAINER ID IMAGE COMMAND CREATED AT STATUS
61b9efa71024 busybox "sh" 2017-01-04 13:23:33 -0800 PST Exited (0) 41 seconds ago
53a9bc23a516 busybox "sh" 2017-01-04 13:11:59 -0800 PST Exited (0) 12 minutes ago
$ docker container prune --force --filter "until=5m"
Deleted Containers:
53a9bc23a5168b6caa2bfbefddf1b30f93c7ad57f3dec271fd32707497cb9369
Total reclaimed space: 25 B
$ docker ps -a --format 'table {{.ID}}\t{{.Image}}\t{{.Command}}\t{{.CreatedAt}}\t{{.Status}}'
CONTAINER ID IMAGE COMMAND CREATED AT STATUS
61b9efa71024 busybox "sh" 2017-01-04 13:23:33 -0800 PST Exited (0) 44 seconds ago
```
The following removes containers created before `2017-01-04T13:10:00`:
```bash
$ docker ps -a --format 'table {{.ID}}\t{{.Image}}\t{{.Command}}\t{{.CreatedAt}}\t{{.Status}}'
CONTAINER ID IMAGE COMMAND CREATED AT STATUS
53a9bc23a516 busybox "sh" 2017-01-04 13:11:59 -0800 PST Exited (0) 7 minutes ago
4a75091a6d61 busybox "sh" 2017-01-04 13:09:53 -0800 PST Exited (0) 9 minutes ago
$ docker container prune --force --filter "until=2017-01-04T13:10:00"
Deleted Containers:
4a75091a6d618526fcd8b33ccd6e5928ca2a64415466f768a6180004b0c72c6c
Total reclaimed space: 27 B
$ docker ps -a --format 'table {{.ID}}\t{{.Image}}\t{{.Command}}\t{{.CreatedAt}}\t{{.Status}}'
CONTAINER ID IMAGE COMMAND CREATED AT STATUS
53a9bc23a516 busybox "sh" 2017-01-04 13:11:59 -0800 PST Exited (0) 9 minutes ago
```
## Related commands
* [system df](system_df.md)
* [volume prune](volume_prune.md)
* [image prune](image_prune.md)
* [network prune](network_prune.md)
* [system prune](system_prune.md)
@@ -1,115 +0,0 @@
---
title: "cp"
description: "The cp command description and usage"
keywords: "copy, container, files, folders"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# cp
```markdown
Usage: docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|-
docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH
Copy files/folders between a container and the local filesystem
Use '-' as the source to read a tar archive from stdin
and extract it to a directory destination in a container.
Use '-' as the destination to stream a tar archive of a
container source to stdout.
Options:
-L, --follow-link Always follow symbol link in SRC_PATH
--help Print usage
```
## Description
The `docker cp` utility copies the contents of `SRC_PATH` to the `DEST_PATH`.
You can copy from the container's file system to the local machine or the
reverse, from the local filesystem to the container. If `-` is specified for
either the `SRC_PATH` or `DEST_PATH`, you can also stream a tar archive from
`STDIN` or to `STDOUT`. The `CONTAINER` can be a running or stopped container.
The `SRC_PATH` or `DEST_PATH` can be a file or directory.
The `docker cp` command assumes container paths are relative to the container's
`/` (root) directory. This means supplying the initial forward slash is optional;
The command sees `compassionate_darwin:/tmp/foo/myfile.txt` and
`compassionate_darwin:tmp/foo/myfile.txt` as identical. Local machine paths can
be an absolute or relative value. The command interprets a local machine's
relative paths as relative to the current working directory where `docker cp` is
run.
The `cp` command behaves like the Unix `cp -a` command in that directories are
copied recursively with permissions preserved if possible. Ownership is set to
the user and primary group at the destination. For example, files copied to a
container are created with `UID:GID` of the root user. Files copied to the local
machine are created with the `UID:GID` of the user which invoked the `docker cp`
command. If you specify the `-L` option, `docker cp` follows any symbolic link
in the `SRC_PATH`. `docker cp` does *not* create parent directories for
`DEST_PATH` if they do not exist.
Assuming a path separator of `/`, a first argument of `SRC_PATH` and second
argument of `DEST_PATH`, the behavior is as follows:
- `SRC_PATH` specifies a file
- `DEST_PATH` does not exist
- the file is saved to a file created at `DEST_PATH`
- `DEST_PATH` does not exist and ends with `/`
- Error condition: the destination directory must exist.
- `DEST_PATH` exists and is a file
- the destination is overwritten with the source file's contents
- `DEST_PATH` exists and is a directory
- the file is copied into this directory using the basename from
`SRC_PATH`
- `SRC_PATH` specifies a directory
- `DEST_PATH` does not exist
- `DEST_PATH` is created as a directory and the *contents* of the source
directory are copied into this directory
- `DEST_PATH` exists and is a file
- Error condition: cannot copy a directory to a file
- `DEST_PATH` exists and is a directory
- `SRC_PATH` does not end with `/.` (that is: _slash_ followed by _dot_)
- the source directory is copied into this directory
- `SRC_PATH` does end with `/.` (that is: _slash_ followed by _dot_)
- the *content* of the source directory is copied into this
directory
The command requires `SRC_PATH` and `DEST_PATH` to exist according to the above
rules. If `SRC_PATH` is local and is a symbolic link, the symbolic link, not
the target, is copied by default. To copy the link target and not the link, specify
the `-L` option.
A colon (`:`) is used as a delimiter between `CONTAINER` and its path. You can
also use `:` when specifying paths to a `SRC_PATH` or `DEST_PATH` on a local
machine, for example `file:name.txt`. If you use a `:` in a local machine path,
you must be explicit with a relative or absolute path, for example:
`/path/to/file:name.txt` or `./file:name.txt`
It is not possible to copy certain system files such as resources under
`/proc`, `/sys`, `/dev`, [tmpfs](run.md#mount-tmpfs-tmpfs), and mounts created by
the user in the container. However, you can still copy such files by manually
running `tar` in `docker exec`. Both of the following examples do the same thing
in different ways (consider `SRC_PATH` and `DEST_PATH` are directories):
```bash
$ docker exec foo tar Ccf $(dirname SRC_PATH) - $(basename SRC_PATH) | tar Cxf DEST_PATH -
```
```bash
$ tar Ccf $(dirname SRC_PATH) - $(basename SRC_PATH) | docker exec -i foo tar Cxf DEST_PATH -
```
Using `-` as the `SRC_PATH` streams the contents of `STDIN` as a tar archive.
The command extracts the content of the tar to the `DEST_PATH` in container's
filesystem. In this case, `DEST_PATH` must specify a directory. Using `-` as
the `DEST_PATH` streams the contents of the resource as a tar archive to `STDOUT`.
@@ -1,260 +0,0 @@
---
title: "create"
description: "The create command description and usage"
keywords: "docker, create, container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# create
Creates a new container.
```markdown
Usage: docker create [OPTIONS] IMAGE [COMMAND] [ARG...]
Create a new container
Options:
--add-host value Add a custom host-to-IP mapping (host:ip) (default [])
-a, --attach value Attach to STDIN, STDOUT or STDERR (default [])
--blkio-weight value Block IO (relative weight), between 10 and 1000
--blkio-weight-device value Block IO weight (relative device weight) (default [])
--cap-add value Add Linux capabilities (default [])
--cap-drop value Drop Linux capabilities (default [])
--cgroup-parent string Optional parent cgroup for the container
--cidfile string Write the container ID to the file
--cpu-count int The number of CPUs available for execution by the container.
Windows daemon only. On Windows Server containers, this is
approximated as a percentage of total CPU usage.
--cpu-percent int CPU percent (Windows only)
--cpu-period int Limit CPU CFS (Completely Fair Scheduler) period
--cpu-quota int Limit CPU CFS (Completely Fair Scheduler) quota
-c, --cpu-shares int CPU shares (relative weight)
--cpus NanoCPUs Number of CPUs (default 0.000)
--cpu-rt-period int Limit the CPU real-time period in microseconds
--cpu-rt-runtime int Limit the CPU real-time runtime in microseconds
--cpuset-cpus string CPUs in which to allow execution (0-3, 0,1)
--cpuset-mems string MEMs in which to allow execution (0-3, 0,1)
--device value Add a host device to the container (default [])
--device-cgroup-rule value Add a rule to the cgroup allowed devices list
--device-read-bps value Limit read rate (bytes per second) from a device (default [])
--device-read-iops value Limit read rate (IO per second) from a device (default [])
--device-write-bps value Limit write rate (bytes per second) to a device (default [])
--device-write-iops value Limit write rate (IO per second) to a device (default [])
--disable-content-trust Skip image verification (default true)
--dns value Set custom DNS servers (default [])
--dns-option value Set DNS options (default [])
--dns-search value Set custom DNS search domains (default [])
--entrypoint string Overwrite the default ENTRYPOINT of the image
-e, --env value Set environment variables (default [])
--env-file value Read in a file of environment variables (default [])
--expose value Expose a port or a range of ports (default [])
--group-add value Add additional groups to join (default [])
--health-cmd string Command to run to check health
--health-interval duration Time between running the check (ns|us|ms|s|m|h) (default 0s)
--health-retries int Consecutive failures needed to report unhealthy
--health-timeout duration Maximum time to allow one check to run (ns|us|ms|s|m|h) (default 0s)
--health-start-period duration Start period for the container to initialize before counting retries towards unstable (ns|us|ms|s|m|h) (default 0s)
--help Print usage
-h, --hostname string Container host name
--init Run an init inside the container that forwards signals and reaps processes
-i, --interactive Keep STDIN open even if not attached
--io-maxbandwidth string Maximum IO bandwidth limit for the system drive (Windows only)
--io-maxiops uint Maximum IOps limit for the system drive (Windows only)
--ip string IPv4 address (e.g., 172.30.100.104)
--ip6 string IPv6 address (e.g., 2001:db8::33)
--ipc string IPC namespace to use
--isolation string Container isolation technology
--kernel-memory string Kernel memory limit
-l, --label value Set meta data on a container (default [])
--label-file value Read in a line delimited file of labels (default [])
--link value Add link to another container (default [])
--link-local-ip value Container IPv4/IPv6 link-local addresses (default [])
--log-driver string Logging driver for the container
--log-opt value Log driver options (default [])
--mac-address string Container MAC address (e.g., 92:d0:c6:0a:29:33)
-m, --memory string Memory limit
--memory-reservation string Memory soft limit
--memory-swap string Swap limit equal to memory plus swap: '-1' to enable unlimited swap
--memory-swappiness int Tune container memory swappiness (0 to 100) (default -1)
--mount value Attach a filesytem mount to the container (default [])
--name string Assign a name to the container
--network-alias value Add network-scoped alias for the container (default [])
--network string Connect a container to a network (default "default")
'bridge': create a network stack on the default Docker bridge
'none': no networking
'container:<name|id>': reuse another container's network stack
'host': use the Docker host network stack
'<network-name>|<network-id>': connect to a user-defined network
--no-healthcheck Disable any container-specified HEALTHCHECK
--oom-kill-disable Disable OOM Killer
--oom-score-adj int Tune host's OOM preferences (-1000 to 1000)
--pid string PID namespace to use
--pids-limit int Tune container pids limit (set -1 for unlimited), kernel >= 4.3
--privileged Give extended privileges to this container
-p, --publish value Publish a container's port(s) to the host (default [])
-P, --publish-all Publish all exposed ports to random ports
--read-only Mount the container's root filesystem as read only
--restart string Restart policy to apply when a container exits (default "no")
Possible values are: no, on-failure[:max-retry], always, unless-stopped
--rm Automatically remove the container when it exits
--runtime string Runtime to use for this container
--security-opt value Security Options (default [])
--shm-size bytes Size of /dev/shm
The format is `<number><unit>`. `number` must be greater than `0`.
Unit is optional and can be `b` (bytes), `k` (kilobytes), `m` (megabytes),
or `g` (gigabytes). If you omit the unit, the system uses bytes.
--stop-signal string Signal to stop a container (default "SIGTERM")
--stop-timeout=10 Timeout (in seconds) to stop a container
--storage-opt value Storage driver options for the container (default [])
--sysctl value Sysctl options (default map[])
--tmpfs value Mount a tmpfs directory (default [])
-t, --tty Allocate a pseudo-TTY
--ulimit value Ulimit options (default [])
-u, --user string Username or UID (format: <name|uid>[:<group|gid>])
--userns string User namespace to use
'host': Use the Docker host user namespace
'': Use the Docker daemon user namespace specified by `--userns-remap` option.
--uts string UTS namespace to use
-v, --volume value Bind mount a volume (default []). The format
is `[host-src:]container-dest[:<options>]`.
The comma-delimited `options` are [rw|ro],
[z|Z], [[r]shared|[r]slave|[r]private],
[delegated|cached|consistent], and
[nocopy]. The 'host-src' is an absolute path
or a name value.
--volume-driver string Optional volume driver for the container
--volumes-from value Mount volumes from the specified container(s) (default [])
-w, --workdir string Working directory inside the container
```
## Description
The `docker create` command creates a writeable container layer over the
specified image and prepares it for running the specified command. The
container ID is then printed to `STDOUT`. This is similar to `docker run -d`
except the container is never started. You can then use the
`docker start <container_id>` command to start the container at any point.
This is useful when you want to set up a container configuration ahead of time
so that it is ready to start when you need it. The initial status of the
new container is `created`.
Please see the [run command](run.md) section and the [Docker run reference](../run.md) for more details.
## Examples
### Create and start a container
```bash
$ docker create -t -i fedora bash
6d8af538ec541dd581ebc2a24153a28329acb5268abe5ef868c1f1a261221752
$ docker start -a -i 6d8af538ec5
bash-4.2#
```
### Initialize volumes
As of v1.4.0 container volumes are initialized during the `docker create` phase
(i.e., `docker run` too). For example, this allows you to `create` the `data`
volume container, and then use it from another container:
```bash
$ docker create -v /data --name data ubuntu
240633dfbb98128fa77473d3d9018f6123b99c454b3251427ae190a7d951ad57
$ docker run --rm --volumes-from data ubuntu ls -la /data
total 8
drwxr-xr-x 2 root root 4096 Dec 5 04:10 .
drwxr-xr-x 48 root root 4096 Dec 5 04:11 ..
```
Similarly, `create` a host directory bind mounted volume container, which can
then be used from the subsequent container:
```bash
$ docker create -v /home/docker:/docker --name docker ubuntu
9aa88c08f319cd1e4515c3c46b0de7cc9aa75e878357b1e96f91e2c773029f03
$ docker run --rm --volumes-from docker ubuntu ls -la /docker
total 20
drwxr-sr-x 5 1000 staff 180 Dec 5 04:00 .
drwxr-xr-x 48 root root 4096 Dec 5 04:13 ..
-rw-rw-r-- 1 1000 staff 3833 Dec 5 04:01 .ash_history
-rw-r--r-- 1 1000 staff 446 Nov 28 11:51 .ashrc
-rw-r--r-- 1 1000 staff 25 Dec 5 04:00 .gitconfig
drwxr-sr-x 3 1000 staff 60 Dec 1 03:28 .local
-rw-r--r-- 1 1000 staff 920 Nov 28 11:51 .profile
drwx--S--- 2 1000 staff 460 Dec 5 00:51 .ssh
drwxr-xr-x 32 1000 staff 1140 Dec 5 04:01 docker
```
Set storage driver options per container.
```bash
$ docker create -it --storage-opt size=120G fedora /bin/bash
```
This (size) will allow to set the container rootfs size to 120G at creation time.
This option is only available for the `devicemapper`, `btrfs`, `overlay2`,
`windowsfilter` and `zfs` graph drivers.
For the `devicemapper`, `btrfs`, `windowsfilter` and `zfs` graph drivers,
user cannot pass a size less than the Default BaseFS Size.
For the `overlay2` storage driver, the size option is only available if the
backing fs is `xfs` and mounted with the `pquota` mount option.
Under these conditions, user can pass any size less then the backing fs size.
### Specify isolation technology for container (--isolation)
This option is useful in situations where you are running Docker containers on
Windows. The `--isolation=<value>` option sets a container's isolation
technology. On Linux, the only supported is the `default` option which uses
Linux namespaces. On Microsoft Windows, you can specify these values:
| Value | Description |
|-----------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `default` | Use the value specified by the Docker daemon's `--exec-opt` . If the `daemon` does not specify an isolation technology, Microsoft Windows uses `process` as its default value if the
daemon is running on Windows server, or `hyperv` if running on Windows client. |
| `process` | Namespace isolation only. |
| `hyperv` | Hyper-V hypervisor partition-based isolation. |
Specifying the `--isolation` flag without a value is the same as setting `--isolation="default"`.
### Dealing with dynamically created devices (--device-cgroup-rule)
Devices available to a container are assigned at creation time. The
assigned devices will both be added to the cgroup.allow file and
created into the container once it is run. This poses a problem when
a new device needs to be added to running container.
One of the solution is to add a more permissive rule to a container
allowing it access to a wider range of devices. For example, supposing
our container needs access to a character device with major `42` and
any number of minor number (added as new devices appear), the
following rule would be added:
```
docker create --device-cgroup-rule='c 42:* rmw' -name my-container my-image
```
Then, a user could ask `udev` to execute a script that would `docker exec my-container mknod newDevX c 42 <minor>`
the required device when it is added.
NOTE: initially present devices still need to be explicitely added to
the create/run command
@@ -1,112 +0,0 @@
---
title: "deploy"
description: "The deploy command description and usage"
keywords: "stack, deploy"
advisory: "experimental"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# deploy (experimental)
An alias for `stack deploy`.
```markdown
Usage: docker deploy [OPTIONS] STACK
Deploy a new stack or update an existing stack
Aliases:
deploy, up
Options:
--bundle-file string Path to a Distributed Application Bundle file
--compose-file string Path to a Compose file
--help Print usage
--prune Prune services that are no longer referenced
--with-registry-auth Send registry authentication details to Swarm agents
```
## Description
Create and update a stack from a `compose` or a `dab` file on the swarm. This command
has to be run targeting a manager node.
## Examples
### Compose file
The `deploy` command supports compose file version `3.0` and above.
```bash
$ docker stack deploy --compose-file docker-compose.yml vossibility
Ignoring unsupported options: links
Creating network vossibility_vossibility
Creating network vossibility_default
Creating service vossibility_nsqd
Creating service vossibility_logstash
Creating service vossibility_elasticsearch
Creating service vossibility_kibana
Creating service vossibility_ghollector
Creating service vossibility_lookupd
```
You can verify that the services were correctly created
```bash
$ docker service ls
ID NAME MODE REPLICAS IMAGE
29bv0vnlm903 vossibility_lookupd replicated 1/1 nsqio/nsq@sha256:eeba05599f31eba418e96e71e0984c3dc96963ceb66924dd37a47bf7ce18a662
4awt47624qwh vossibility_nsqd replicated 1/1 nsqio/nsq@sha256:eeba05599f31eba418e96e71e0984c3dc96963ceb66924dd37a47bf7ce18a662
4tjx9biia6fs vossibility_elasticsearch replicated 1/1 elasticsearch@sha256:12ac7c6af55d001f71800b83ba91a04f716e58d82e748fa6e5a7359eed2301aa
7563uuzr9eys vossibility_kibana replicated 1/1 kibana@sha256:6995a2d25709a62694a937b8a529ff36da92ebee74bafd7bf00e6caf6db2eb03
9gc5m4met4he vossibility_logstash replicated 1/1 logstash@sha256:2dc8bddd1bb4a5a34e8ebaf73749f6413c101b2edef6617f2f7713926d2141fe
axqh55ipl40h vossibility_vossibility-collector replicated 1/1 icecrime/vossibility-collector@sha256:f03f2977203ba6253988c18d04061c5ec7aab46bca9dfd89a9a1fa4500989fba
```
### DAB file
```bash
$ docker stack deploy --bundle-file vossibility-stack.dab vossibility
Loading bundle from vossibility-stack.dab
Creating service vossibility_elasticsearch
Creating service vossibility_kibana
Creating service vossibility_logstash
Creating service vossibility_lookupd
Creating service vossibility_nsqd
Creating service vossibility_vossibility-collector
```
You can verify that the services were correctly created:
```bash
$ docker service ls
ID NAME MODE REPLICAS IMAGE
29bv0vnlm903 vossibility_lookupd replicated 1/1 nsqio/nsq@sha256:eeba05599f31eba418e96e71e0984c3dc96963ceb66924dd37a47bf7ce18a662
4awt47624qwh vossibility_nsqd replicated 1/1 nsqio/nsq@sha256:eeba05599f31eba418e96e71e0984c3dc96963ceb66924dd37a47bf7ce18a662
4tjx9biia6fs vossibility_elasticsearch replicated 1/1 elasticsearch@sha256:12ac7c6af55d001f71800b83ba91a04f716e58d82e748fa6e5a7359eed2301aa
7563uuzr9eys vossibility_kibana replicated 1/1 kibana@sha256:6995a2d25709a62694a937b8a529ff36da92ebee74bafd7bf00e6caf6db2eb03
9gc5m4met4he vossibility_logstash replicated 1/1 logstash@sha256:2dc8bddd1bb4a5a34e8ebaf73749f6413c101b2edef6617f2f7713926d2141fe
axqh55ipl40h vossibility_vossibility-collector replicated 1/1 icecrime/vossibility-collector@sha256:f03f2977203ba6253988c18d04061c5ec7aab46bca9dfd89a9a1fa4500989fba
```
## Related commands
* [stack config](stack_config.md)
* [stack deploy](stack_deploy.md)
* [stack ls](stack_ls.md)
* [stack ps](stack_ps.md)
* [stack rm](stack_rm.md)
* [stack services](stack_services.md)
@@ -1,67 +0,0 @@
---
title: "diff"
description: "The diff command description and usage"
keywords: "list, changed, files, container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# diff
```markdown
Usage: docker diff CONTAINER
Inspect changes to files or directories on a container's filesystem
Options:
--help Print usage
```
## Description
List the changed files and directories in a container᾿s filesystem since the
container was created. Three different types of change are tracked:
| Symbol | Description |
|--------|---------------------------------|
| `A` | A file or directory was added |
| `D` | A file or directory was deleted |
| `C` | A file or directory was changed |
You can use the full or shortened container ID or the container name set using
`docker run --name` option.
## Examples
Inspect the changes to an `nginx` container:
```bash
$ docker diff 1fdfd1f54c1b
C /dev
C /dev/console
C /dev/core
C /dev/stdout
C /dev/fd
C /dev/ptmx
C /dev/stderr
C /dev/stdin
C /run
A /run/nginx.pid
C /var/lib/nginx/tmp
A /var/lib/nginx/tmp/client_body
A /var/lib/nginx/tmp/fastcgi
A /var/lib/nginx/tmp/proxy
A /var/lib/nginx/tmp/scgi
A /var/lib/nginx/tmp/uwsgi
C /var/log/nginx
A /var/log/nginx/access.log
A /var/log/nginx/error.log
```
File diff suppressed because it is too large Load Diff
@@ -1,345 +0,0 @@
---
title: "events"
description: "The events command description and usage"
keywords: "events, container, report"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/moby/moby/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# events
```markdown
Usage: docker events [OPTIONS]
Get real time events from the server
Options:
-f, --filter value Filter output based on conditions provided (default [])
--format string Format the output using the given Go template
--help Print usage
--since string Show all events created since timestamp
--until string Stream events until this timestamp
```
## Description
Use `docker events` to get real-time events from the server. These events differ
per Docker object type.
### Object types
#### Containers
Docker containers report the following events:
- `attach`
- `commit`
- `copy`
- `create`
- `destroy`
- `detach`
- `die`
- `exec_create`
- `exec_detach`
- `exec_start`
- `export`
- `health_status`
- `kill`
- `oom`
- `pause`
- `rename`
- `resize`
- `restart`
- `start`
- `stop`
- `top`
- `unpause`
- `update`
#### Images
Docker images report the following events:
- `delete`
- `import`
- `load`
- `pull`
- `push`
- `save`
- `tag`
- `untag`
#### Plugins
Docker plugins report the following events:
- `install`
- `enable`
- `disable`
- `remove`
#### Volumes
Docker volumes report the following events:
- `create`
- `mount`
- `unmount`
- `destroy`
#### Networks
Docker networks report the following events:
- `create`
- `connect`
- `disconnect`
- `destroy`
#### Daemons
Docker daemons report the following events:
- `reload`
### Limiting, filtering, and formatting the output
#### Limit events by time
The `--since` and `--until` parameters can be Unix timestamps, date formatted
timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
relative to the client machine’s time. If you do not provide the `--since` option,
the command returns only new and/or live events. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
`2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
timezone on the client will be used if you do not provide either a `Z` or a
`+-00:00` timezone offset at the end of the timestamp. When providing Unix
timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
fraction of a second no more than nine digits long.
#### Filtering
The filtering flag (`-f` or `--filter`) format is of "key=value". If you would
like to use multiple filters, pass multiple flags (e.g.,
`--filter "foo=bar" --filter "bif=baz"`)
Using the same filter multiple times will be handled as a *OR*; for example
`--filter container=588a23dac085 --filter container=a8f7720b8c22` will display
events for container 588a23dac085 *OR* container a8f7720b8c22
Using multiple filters will be handled as a *AND*; for example
`--filter container=588a23dac085 --filter event=start` will display events for
container container 588a23dac085 *AND* the event type is *start*
The currently supported filters are:
* container (`container=<name or id>`)
* daemon (`daemon=<name or id>`)
* event (`event=<event action>`)
* image (`image=<tag or id>`)
* label (`label=<key>` or `label=<key>=<value>`)
* network (`network=<name or id>`)
* plugin (`plugin=<name or id>`)
* type (`type=<container or image or volume or network or daemon or plugin>`)
* volume (`volume=<name or id>`)
#### Format
If a format (`--format`) is specified, the given template will be executed
instead of the default
format. Go's [text/template](http://golang.org/pkg/text/template/) package
describes all the details of the format.
If a format is set to `{{json .}}`, the events are streamed as valid JSON
Lines. For information about JSON Lines, please refer to http://jsonlines.org/ .
## Examples
### Basic example
You'll need two shells for this example.
**Shell 1: Listening for events:**
```bash
$ docker events
```
**Shell 2: Start and Stop containers:**
```bash
$ docker create --name test alpine:latest top
$ docker start test
$ docker stop test
```
**Shell 1: (Again .. now showing events):**
```none
2017-01-05T00:35:58.859401177+08:00 container create 0fdb48addc82871eb34eb23a847cfd033dedd1a0a37bef2e6d9eb3870fc7ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:04.703631903+08:00 network connect e2e1f5ceda09d4300f3a846f0acfaa9a8bb0d89e775eb744c5acecd60e0529e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:04.795031609+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:09.830268747+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:36:09.840186338+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:36:09.880113663+08:00 network disconnect e2e...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:09.890214053+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
```
To exit the `docker events` command, use `CTRL+C`.
### Filter events by time
You can filter the output by an absolute timestamp or relative time on the host
machine, using the following different time syntaxes:
```bash
$ docker events --since 1483283804
2017-01-05T00:35:41.241772953+08:00 volume create testVol (driver=local)
2017-01-05T00:35:58.859401177+08:00 container create d9cd...4d70 (image=alpine:latest, name=test)
2017-01-05T00:36:04.703631903+08:00 network connect e2e1...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:04.795031609+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:09.830268747+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:36:09.840186338+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:36:09.880113663+08:00 network disconnect e2e...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:09.890214053+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
$ docker events --since '2017-01-05'
2017-01-05T00:35:41.241772953+08:00 volume create testVol (driver=local)
2017-01-05T00:35:58.859401177+08:00 container create d9cd...4d70 (image=alpine:latest, name=test)
2017-01-05T00:36:04.703631903+08:00 network connect e2e1...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:04.795031609+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:09.830268747+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:36:09.840186338+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:36:09.880113663+08:00 network disconnect e2e...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:09.890214053+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
$ docker events --since '2013-09-03T15:49:29'
2017-01-05T00:35:41.241772953+08:00 volume create testVol (driver=local)
2017-01-05T00:35:58.859401177+08:00 container create d9cd...4d70 (image=alpine:latest, name=test)
2017-01-05T00:36:04.703631903+08:00 network connect e2e1...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:04.795031609+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:09.830268747+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:36:09.840186338+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:36:09.880113663+08:00 network disconnect e2e...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:09.890214053+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
$ docker events --since '10m'
2017-01-05T00:35:41.241772953+08:00 volume create testVol (driver=local)
2017-01-05T00:35:58.859401177+08:00 container create d9cd...4d70 (image=alpine:latest, name=test)
2017-01-05T00:36:04.703631903+08:00 network connect e2e1...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:04.795031609+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:36:09.830268747+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:36:09.840186338+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:36:09.880113663+08:00 network disconnect e2e...29e2 (container=0fdb...ff37, name=bridge, type=bridge)
2017-01-05T00:36:09.890214053+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
```
### Filter events by criteria
The following commands show several different ways to filter the `docker event`
output.
```bash
$ docker events --filter 'event=stop'
2017-01-05T00:40:22.880175420+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:41:17.888104182+08:00 container stop 2a8f...4e78 (image=alpine, name=kickass_brattain)
$ docker events --filter 'image=alpine'
2017-01-05T00:41:55.784240236+08:00 container create d9cd...4d70 (image=alpine, name=happy_meitner)
2017-01-05T00:41:55.913156783+08:00 container start d9cd...4d70 (image=alpine, name=happy_meitner)
2017-01-05T00:42:01.106875249+08:00 container kill d9cd...4d70 (image=alpine, name=happy_meitner, signal=15)
2017-01-05T00:42:11.111934041+08:00 container kill d9cd...4d70 (image=alpine, name=happy_meitner, signal=9)
2017-01-05T00:42:11.119578204+08:00 container die d9cd...4d70 (exitCode=137, image=alpine, name=happy_meitner)
2017-01-05T00:42:11.173276611+08:00 container stop d9cd...4d70 (image=alpine, name=happy_meitner)
$ docker events --filter 'container=test'
2017-01-05T00:43:00.139719934+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:43:09.259951086+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=15)
2017-01-05T00:43:09.270102715+08:00 container die 0fdb...ff37 (exitCode=143, image=alpine:latest, name=test)
2017-01-05T00:43:09.312556440+08:00 container stop 0fdb...ff37 (image=alpine:latest, name=test)
$ docker events --filter 'container=test' --filter 'container=d9cdb1525ea8'
2017-01-05T00:44:11.517071981+08:00 container start 0fdb...ff37 (image=alpine:latest, name=test)
2017-01-05T00:44:17.685870901+08:00 container start d9cd...4d70 (image=alpine, name=happy_meitner)
2017-01-05T00:44:29.757658470+08:00 container kill 0fdb...ff37 (image=alpine:latest, name=test, signal=9)
2017-01-05T00:44:29.767718510+08:00 container die 0fdb...ff37 (exitCode=137, image=alpine:latest, name=test)
2017-01-05T00:44:29.815798344+08:00 container destroy 0fdb...ff37 (image=alpine:latest, name=test)
$ docker events --filter 'container=test' --filter 'event=stop'
2017-01-05T00:46:13.664099505+08:00 container stop a9d1...e130 (image=alpine, name=test)
$ docker events --filter 'type=volume'
2015-12-23T21:05:28.136212689Z volume create test-event-volume-local (driver=local)
2015-12-23T21:05:28.383462717Z volume mount test-event-volume-local (read/write=true, container=562f...5025, destination=/foo, driver=local, propagation=rprivate)
2015-12-23T21:05:28.650314265Z volume unmount test-event-volume-local (container=562f...5025, driver=local)
2015-12-23T21:05:28.716218405Z volume destroy test-event-volume-local (driver=local)
$ docker events --filter 'type=network'
2015-12-23T21:38:24.705709133Z network create 8b11...2c5b (name=test-event-network-local, type=bridge)
2015-12-23T21:38:25.119625123Z network connect 8b11...2c5b (name=test-event-network-local, container=b4be...c54e, type=bridge)
$ docker events --filter 'container=container_1' --filter 'container=container_2'
2014-09-03T15:49:29.999999999Z07:00 container die 4386fb97867d (image=ubuntu-1:14.04)
2014-05-10T17:42:14.999999999Z07:00 container stop 4386fb97867d (image=ubuntu-1:14.04)
2014-05-10T17:42:14.999999999Z07:00 container die 7805c1d35632 (imager=redis:2.8)
2014-09-03T15:49:29.999999999Z07:00 container stop 7805c1d35632 (image=redis:2.8)
$ docker events --filter 'type=volume'
2015-12-23T21:05:28.136212689Z volume create test-event-volume-local (driver=local)
2015-12-23T21:05:28.383462717Z volume mount test-event-volume-local (read/write=true, container=562fe10671e9273da25eed36cdce26159085ac7ee6707105fd534866340a5025, destination=/foo, driver=local, propagation=rprivate)
2015-12-23T21:05:28.650314265Z volume unmount test-event-volume-local (container=562fe10671e9273da25eed36cdce26159085ac7ee6707105fd534866340a5025, driver=local)
2015-12-23T21:05:28.716218405Z volume destroy test-event-volume-local (driver=local)
$ docker events --filter 'type=network'
2015-12-23T21:38:24.705709133Z network create 8b111217944ba0ba844a65b13efcd57dc494932ee2527577758f939315ba2c5b (name=test-event-network-local, type=bridge)
2015-12-23T21:38:25.119625123Z network connect 8b111217944ba0ba844a65b13efcd57dc494932ee2527577758f939315ba2c5b (name=test-event-network-local, container=b4be644031a3d90b400f88ab3d4bdf4dc23adb250e696b6328b85441abe2c54e, type=bridge)
$ docker events --filter 'type=plugin'
2016-07-25T17:30:14.825557616Z plugin pull ec7b87f2ce84330fe076e666f17dfc049d2d7ae0b8190763de94e1f2d105993f (name=tiborvass/sample-volume-plugin:latest)
2016-07-25T17:30:14.888127370Z plugin enable ec7b87f2ce84330fe076e666f17dfc049d2d7ae0b8190763de94e1f2d105993f (name=tiborvass/sample-volume-plugin:latest)
```
### Format the output
```bash
$ docker events --filter 'type=container' --format 'Type={{.Type}} Status={{.Status}} ID={{.ID}}'
Type=container Status=create ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container Status=attach ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container Status=start ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container Status=resize ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container Status=die ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
Type=container Status=destroy ID=2ee349dac409e97974ce8d01b70d250b85e0ba8189299c126a87812311951e26
```
#### Format as JSON
```none
$ docker events --format '{{json .}}'
{"status":"create","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..
{"status":"attach","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..
{"Type":"network","Action":"connect","Actor":{"ID":"1b50a5bf755f6021dfa78e..
{"status":"start","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f42..
{"status":"resize","id":"196016a57679bf42424484918746a9474cd905dd993c4d0f4..
```
@@ -1,99 +0,0 @@
---
title: "exec"
description: "The exec command description and usage"
keywords: "command, container, run, execute"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# exec
```markdown
Usage: docker exec [OPTIONS] CONTAINER COMMAND [ARG...]
Run a command in a running container
Options:
-d, --detach Detached mode: run command in the background
--detach-keys Override the key sequence for detaching a container
-e, --env=[] Set environment variables
--help Print usage
-i, --interactive Keep STDIN open even if not attached
--privileged Give extended privileges to the command
-t, --tty Allocate a pseudo-TTY
-u, --user Username or UID (format: <name|uid>[:<group|gid>])
```
## Description
The `docker exec` command runs a new command in a running container.
The command started using `docker exec` only runs while the container's primary
process (`PID 1`) is running, and it is not restarted if the container is
restarted.
COMMAND will run in the default directory of the container. It the
underlying image has a custom directory specified with the WORKDIR directive
in its Dockerfile, this will be used instead.
COMMAND should be an executable, a chained or a quoted command
will not work. Example: `docker exec -ti my_container "echo a && echo b"` will
not work, but `docker exec -ti my_container sh -c "echo a && echo b"` will.
## Examples
### Run `docker exec` on a running container
First, start a container.
```bash
$ docker run --name ubuntu_bash --rm -i -t ubuntu bash
```
This will create a container named `ubuntu_bash` and start a Bash session.
Next, execute a command on the container.
```bash
$ docker exec -d ubuntu_bash touch /tmp/execWorks
```
This will create a new file `/tmp/execWorks` inside the running container
`ubuntu_bash`, in the background.
Next, execute an interactive `bash` shell on the container.
```bash
$ docker exec -it ubuntu_bash bash
```
This will create a new Bash session in the container `ubuntu_bash`.
### Try to run `docker exec` on a paused container
If the container is paused, then the `docker exec` command will fail with an error:
```bash
$ docker pause test
test
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1ae3b36715d2 ubuntu:latest "bash" 17 seconds ago Up 16 seconds (Paused) test
$ docker exec test ls
FATA[0000] Error response from daemon: Container test is paused, unpause the container before exec
$ echo $?
1
```
@@ -1,48 +0,0 @@
---
title: "export"
description: "The export command description and usage"
keywords: "export, file, system, container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# export
```markdown
Usage: docker export [OPTIONS] CONTAINER
Export a container's filesystem as a tar archive
Options:
--help Print usage
-o, --output string Write to a file, instead of STDOUT
```
## Description
The `docker export` command does not export the contents of volumes associated
with the container. If a volume is mounted on top of an existing directory in
the container, `docker export` will export the contents of the *underlying*
directory, not the contents of the volume.
Refer to [Backup, restore, or migrate data volumes](https://docs.docker.com/engine/tutorials/dockervolumes/#backup-restore-or-migrate-data-volumes)
in the user guide for examples on exporting data in a volume.
## Examples
Each of these commands has the same result.
```bash
$ docker export red_panda > latest.tar
```
```bash
$ docker export --output="latest.tar" red_panda
```
@@ -1,93 +0,0 @@
---
title: "history"
description: "The history command description and usage"
keywords: "docker, image, history"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# history
```markdown
Usage: docker history [OPTIONS] IMAGE
Show the history of an image
Options:
--format string Pretty-print images using a Go template
--help Print usage
-H, --human Print sizes and dates in human readable format (default true)
--no-trunc Don't truncate output
-q, --quiet Only show numeric IDs
```
## Examples
To see how the `docker:latest` image was built:
```bash
$ docker history docker
IMAGE CREATED CREATED BY SIZE COMMENT
3e23a5875458 8 days ago /bin/sh -c #(nop) ENV LC_ALL=C.UTF-8 0 B
8578938dd170 8 days ago /bin/sh -c dpkg-reconfigure locales && loc 1.245 MB
be51b77efb42 8 days ago /bin/sh -c apt-get update && apt-get install 338.3 MB
4b137612be55 6 weeks ago /bin/sh -c #(nop) ADD jessie.tar.xz in / 121 MB
750d58736b4b 6 weeks ago /bin/sh -c #(nop) MAINTAINER Tianon Gravi <ad 0 B
511136ea3c5a 9 months ago 0 B Imported from -
```
To see how the `docker:apache` image was added to a container's base image:
```bash
$ docker history docker:scm
IMAGE CREATED CREATED BY SIZE COMMENT
2ac9d1098bf1 3 months ago /bin/bash 241.4 MB Added Apache to Fedora base image
88b42ffd1f7c 5 months ago /bin/sh -c #(nop) ADD file:1fd8d7f9f6557cafc7 373.7 MB
c69cab00d6ef 5 months ago /bin/sh -c #(nop) MAINTAINER Lokesh Mandvekar 0 B
511136ea3c5a 19 months ago 0 B Imported from -
```
### Format the output
The formatting option (`--format`) will pretty-prints history output
using a Go template.
Valid placeholders for the Go template are listed below:
| Placeholder | Description |
| --------------- | ----------- |
| `.ID` | Image ID |
| `.CreatedSince` | Elapsed time since the image was created if `--human=true`, otherwise timestamp of when image was created |
| `.CreatedAt` | Timestamp of when image was created |
| `.CreatedBy` | Command that was used to create the image |
| `.Size` | Image disk size |
| `.Comment` | Comment for image |
When using the `--format` option, the `history` command will either
output the data exactly as the template declares or, when using the
`table` directive, will include column headers as well.
The following example uses a template without headers and outputs the
`ID` and `CreatedSince` entries separated by a colon for all images:
```bash
$ docker images --format "{{.ID}}: {{.Created}} ago"
cc1b61406712: 2 weeks ago
<missing>: 2 weeks ago
<missing>: 2 weeks ago
<missing>: 2 weeks ago
<missing>: 2 weeks ago
<missing>: 3 weeks ago
<missing>: 3 weeks ago
<missing>: 3 weeks ago
```
@@ -1,47 +0,0 @@
---
title: "image"
description: "The image command description and usage"
keywords: "image"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# image
```markdown
Usage: docker image COMMAND
Manage images
Options:
--help Print usage
Commands:
build Build an image from a Dockerfile
history Show the history of an image
import Import the contents from a tarball to create a filesystem image
inspect Display detailed information on one or more images
load Load an image from a tar archive or STDIN
ls List images
prune Remove unused images
pull Pull an image or a repository from a registry
push Push an image or a repository to a registry
rm Remove one or more images
save Save one or more images to a tar archive (streamed to STDOUT by default)
tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE
Run 'docker image COMMAND --help' for more information on a command.
```
## Description
Manage images.
@@ -1,171 +0,0 @@
---
title: "image prune"
description: "Remove all stopped images"
keywords: "image, prune, delete, remove"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# image prune
```markdown
Usage: docker image prune [OPTIONS]
Remove unused images
Options:
-a, --all Remove all unused images, not just dangling ones
--filter filter Provide filter values (e.g. 'until=<timestamp>')
-f, --force Do not prompt for confirmation
--help Print usage
```
## Description
Remove all dangling images. If `-a` is specified, will also remove all images not referenced by any container.
## Examples
Example output:
```bash
$ docker image prune -a
WARNING! This will remove all images without at least one container associated to them.
Are you sure you want to continue? [y/N] y
Deleted Images:
untagged: alpine:latest
untagged: alpine@sha256:3dcdb92d7432d56604d4545cbd324b14e647b313626d99b889d0626de158f73a
deleted: sha256:4e38e38c8ce0b8d9041a9c4fefe786631d1416225e13b0bfe8cfa2321aec4bba
deleted: sha256:4fe15f8d0ae69e169824f25f1d4da3015a48feeeeebb265cd2e328e15c6a869f
untagged: alpine:3.3
untagged: alpine@sha256:4fa633f4feff6a8f02acfc7424efd5cb3e76686ed3218abf4ca0fa4a2a358423
untagged: my-jq:latest
deleted: sha256:ae67841be6d008a374eff7c2a974cde3934ffe9536a7dc7ce589585eddd83aff
deleted: sha256:34f6f1261650bc341eb122313372adc4512b4fceddc2a7ecbb84f0958ce5ad65
deleted: sha256:cf4194e8d8db1cb2d117df33f2c75c0369c3a26d96725efb978cc69e046b87e7
untagged: my-curl:latest
deleted: sha256:b2789dd875bf427de7f9f6ae001940073b3201409b14aba7e5db71f408b8569e
deleted: sha256:96daac0cb203226438989926fc34dd024f365a9a8616b93e168d303cfe4cb5e9
deleted: sha256:5cbd97a14241c9cd83250d6b6fc0649833c4a3e84099b968dd4ba403e609945e
deleted: sha256:a0971c4015c1e898c60bf95781c6730a05b5d8a2ae6827f53837e6c9d38efdec
deleted: sha256:d8359ca3b681cc5396a4e790088441673ed3ce90ebc04de388bfcd31a0716b06
deleted: sha256:83fc9ba8fb70e1da31dfcc3c88d093831dbd4be38b34af998df37e8ac538260c
deleted: sha256:ae7041a4cc625a9c8e6955452f7afe602b401f662671cea3613f08f3d9343b35
deleted: sha256:35e0f43a37755b832f0bbea91a2360b025ee351d7309dae0d9737bc96b6d0809
deleted: sha256:0af941dd29f00e4510195dd00b19671bc591e29d1495630e7e0f7c44c1e6a8c0
deleted: sha256:9fc896fc2013da84f84e45b3096053eb084417b42e6b35ea0cce5a3529705eac
deleted: sha256:47cf20d8c26c46fff71be614d9f54997edacfe8d46d51769706e5aba94b16f2b
deleted: sha256:2c675ee9ed53425e31a13e3390bf3f539bf8637000e4bcfbb85ee03ef4d910a1
Total reclaimed space: 16.43 MB
```
### Filtering
The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
The currently supported filters are:
* until (`<timestamp>`) - only remove images created before given timestamp
* label (`label=<key>`, `label=<key>=<value>`, `label!=<key>`, or `label!=<key>=<value>`) - only remove images with (or without, in case `label!=...` is used) the specified labels.
The `until` filter can be Unix timestamps, date formatted
timestamps, or Go duration strings (e.g. `10m`, `1h30m`) computed
relative to the daemon machine’s time. Supported formats for date
formatted time stamps include RFC3339Nano, RFC3339, `2006-01-02T15:04:05`,
`2006-01-02T15:04:05.999999999`, `2006-01-02Z07:00`, and `2006-01-02`. The local
timezone on the daemon will be used if you do not provide either a `Z` or a
`+-00:00` timezone offset at the end of the timestamp. When providing Unix
timestamps enter seconds[.nanoseconds], where seconds is the number of seconds
that have elapsed since January 1, 1970 (midnight UTC/GMT), not counting leap
seconds (aka Unix epoch or Unix time), and the optional .nanoseconds field is a
fraction of a second no more than nine digits long.
The `label` filter accepts two formats. One is the `label=...` (`label=<key>` or `label=<key>=<value>`),
which removes images with the specified labels. The other
format is the `label!=...` (`label!=<key>` or `label!=<key>=<value>`), which removes
images without the specified labels.
The following removes images created before `2017-01-04T00:00:00`:
```bash
$ docker images --format 'table {{.Repository}}\t{{.Tag}}\t{{.ID}}\t{{.CreatedAt}}\t{{.Size}}'
REPOSITORY TAG IMAGE ID CREATED AT SIZE
foo latest 2f287ac753da 2017-01-04 13:42:23 -0800 PST 3.98 MB
alpine latest 88e169ea8f46 2016-12-27 10:17:25 -0800 PST 3.98 MB
busybox latest e02e811dd08f 2016-10-07 14:03:58 -0700 PDT 1.09 MB
$ docker image prune -a --force --filter "until=2017-01-04T00:00:00"
Deleted Images:
untagged: alpine:latest
untagged: alpine@sha256:dfbd4a3a8ebca874ebd2474f044a0b33600d4523d03b0df76e5c5986cb02d7e8
untagged: busybox:latest
untagged: busybox@sha256:29f5d56d12684887bdfa50dcd29fc31eea4aaf4ad3bec43daf19026a7ce69912
deleted: sha256:e02e811dd08fd49e7f6032625495118e63f597eb150403d02e3238af1df240ba
deleted: sha256:e88b3f82283bc59d5e0df427c824e9f95557e661fcb0ea15fb0fb6f97760f9d9
Total reclaimed space: 1.093 MB
$ docker images --format 'table {{.Repository}}\t{{.Tag}}\t{{.ID}}\t{{.CreatedAt}}\t{{.Size}}'
REPOSITORY TAG IMAGE ID CREATED AT SIZE
foo latest 2f287ac753da 2017-01-04 13:42:23 -0800 PST 3.98 MB
```
The following removes images created more than 10 days (`240h`) ago:
```bash
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
foo latest 2f287ac753da 14 seconds ago 3.98 MB
alpine latest 88e169ea8f46 8 days ago 3.98 MB
debian jessie 7b0a06c805e8 2 months ago 123 MB
busybox latest e02e811dd08f 2 months ago 1.09 MB
golang 1.7.0 138c2e655421 4 months ago 670 MB
$ docker image prune -a --force --filter "until=240h"
Deleted Images:
untagged: golang:1.7.0
untagged: golang@sha256:6765038c2b8f407fd6e3ecea043b44580c229ccfa2a13f6d85866cf2b4a9628e
deleted: sha256:138c2e6554219de65614d88c15521bfb2da674cbb0bf840de161f89ff4264b96
deleted: sha256:ec353c2e1a673f456c4b78906d0d77f9d9456cfb5229b78c6a960bfb7496b76a
deleted: sha256:fe22765feaf3907526b4921c73ea6643ff9e334497c9b7e177972cf22f68ee93
deleted: sha256:ff845959c80148421a5c3ae11cc0e6c115f950c89bc949646be55ed18d6a2912
deleted: sha256:a4320831346648c03db64149eafc83092e2b34ab50ca6e8c13112388f25899a7
deleted: sha256:4c76020202ee1d9709e703b7c6de367b325139e74eebd6b55b30a63c196abaf3
deleted: sha256:d7afd92fb07236c8a2045715a86b7d5f0066cef025018cd3ca9a45498c51d1d6
deleted: sha256:9e63c5bce4585dd7038d830a1f1f4e44cb1a1515b00e620ac718e934b484c938
untagged: debian:jessie
untagged: debian@sha256:c1af755d300d0c65bb1194d24bce561d70c98a54fb5ce5b1693beb4f7988272f
deleted: sha256:7b0a06c805e8f23807fb8856621c60851727e85c7bcb751012c813f122734c8d
deleted: sha256:f96222d75c5563900bc4dd852179b720a0885de8f7a0619ba0ac76e92542bbc8
Total reclaimed space: 792.6 MB
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
foo latest 2f287ac753da About a minute ago 3.98 MB
alpine latest 88e169ea8f46 8 days ago 3.98 MB
busybox latest e02e811dd08f 2 months ago 1.09 MB
```
## Related commands
* [system df](system_df.md)
* [container prune](container_prune.md)
* [volume prune](volume_prune.md)
* [network prune](network_prune.md)
* [system prune](system_prune.md)
@@ -1,343 +0,0 @@
---
title: "images"
description: "The images command description and usage"
keywords: "list, docker, images"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# images
```markdown
Usage: docker images [OPTIONS] [REPOSITORY[:TAG]]
List images
Options:
-a, --all Show all images (default hides intermediate images)
--digests Show digests
-f, --filter value Filter output based on conditions provided (default [])
- dangling=(true|false)
- label=<key> or label=<key>=<value>
- before=(<image-name>[:tag]|<image-id>|<image@digest>)
- since=(<image-name>[:tag]|<image-id>|<image@digest>)
- reference=(pattern of an image reference)
--format string Pretty-print images using a Go template
--help Print usage
--no-trunc Don't truncate output
-q, --quiet Only show numeric IDs
```
## Description
The default `docker images` will show all top level
images, their repository and tags, and their size.
Docker images have intermediate layers that increase reusability,
decrease disk usage, and speed up `docker build` by
allowing each step to be cached. These intermediate layers are not shown
by default.
The `SIZE` is the cumulative space taken up by the image and all
its parent images. This is also the disk space used by the contents of the
Tar file created when you `docker save` an image.
An image will be listed more than once if it has multiple repository names
or tags. This single image (identifiable by its matching `IMAGE ID`)
uses up the `SIZE` listed only once.
## Examples
### List the most recently created images
```bash
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 77af4d6b9913 19 hours ago 1.089 GB
committ latest b6fa739cedf5 19 hours ago 1.089 GB
<none> <none> 78a85c484f71 19 hours ago 1.089 GB
docker latest 30557a29d5ab 20 hours ago 1.089 GB
<none> <none> 5ed6274db6ce 24 hours ago 1.089 GB
postgres 9 746b819f315e 4 days ago 213.4 MB
postgres 9.3 746b819f315e 4 days ago 213.4 MB
postgres 9.3.5 746b819f315e 4 days ago 213.4 MB
postgres latest 746b819f315e 4 days ago 213.4 MB
```
### List images by name and tag
The `docker images` command takes an optional `[REPOSITORY[:TAG]]` argument
that restricts the list to images that match the argument. If you specify
`REPOSITORY`but no `TAG`, the `docker images` command lists all images in the
given repository.
For example, to list all images in the "java" repository, run this command :
```bash
$ docker images java
REPOSITORY TAG IMAGE ID CREATED SIZE
java 8 308e519aac60 6 days ago 824.5 MB
java 7 493d82594c15 3 months ago 656.3 MB
java latest 2711b1d6f3aa 5 months ago 603.9 MB
```
The `[REPOSITORY[:TAG]]` value must be an "exact match". This means that, for example,
`docker images jav` does not match the image `java`.
If both `REPOSITORY` and `TAG` are provided, only images matching that
repository and tag are listed. To find all local images in the "java"
repository with tag "8" you can use:
```bash
$ docker images java:8
REPOSITORY TAG IMAGE ID CREATED SIZE
java 8 308e519aac60 6 days ago 824.5 MB
```
If nothing matches `REPOSITORY[:TAG]`, the list is empty.
```bash
$ docker images java:0
REPOSITORY TAG IMAGE ID CREATED SIZE
```
### List the full length image IDs
```bash
$ docker images --no-trunc
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> sha256:77af4d6b9913e693e8d0b4b294fa62ade6054e6b2f1ffb617ac955dd63fb0182 19 hours ago 1.089 GB
committest latest sha256:b6fa739cedf5ea12a620a439402b6004d057da800f91c7524b5086a5e4749c9f 19 hours ago 1.089 GB
<none> <none> sha256:78a85c484f71509adeaace20e72e941f6bdd2b25b4c75da8693efd9f61a37921 19 hours ago 1.089 GB
docker latest sha256:30557a29d5abc51e5f1d5b472e79b7e296f595abcf19fe6b9199dbbc809c6ff4 20 hours ago 1.089 GB
<none> <none> sha256:0124422dd9f9cf7ef15c0617cda3931ee68346455441d66ab8bdc5b05e9fdce5 20 hours ago 1.089 GB
<none> <none> sha256:18ad6fad340262ac2a636efd98a6d1f0ea775ae3d45240d3418466495a19a81b 22 hours ago 1.082 GB
<none> <none> sha256:f9f1e26352f0a3ba6a0ff68167559f64f3e21ff7ada60366e2d44a04befd1d3a 23 hours ago 1.089 GB
tryout latest sha256:2629d1fa0b81b222fca63371ca16cbf6a0772d07759ff80e8d1369b926940074 23 hours ago 131.5 MB
<none> <none> sha256:5ed6274db6ceb2397844896966ea239290555e74ef307030ebb01ff91b1914df 24 hours ago 1.089 GB
```
### List image digests
Images that use the v2 or later format have a content-addressable identifier
called a `digest`. As long as the input used to generate the image is
unchanged, the digest value is predictable. To list image digest values, use
the `--digests` flag:
```bash
$ docker images --digests
REPOSITORY TAG DIGEST IMAGE ID CREATED SIZE
localhost:5000/test/busybox <none> sha256:cbbf2f9a99b47fc460d422812b6a5adff7dfee951d8fa2e4a98caa0382cfbdbf 4986bf8c1536 9 weeks ago 2.43 MB
```
When pushing or pulling to a 2.0 registry, the `push` or `pull` command
output includes the image digest. You can `pull` using a digest value. You can
also reference by digest in `create`, `run`, and `rmi` commands, as well as the
`FROM` image reference in a Dockerfile.
### Filtering
The filtering flag (`-f` or `--filter`) format is of "key=value". If there is more
than one filter, then pass multiple flags (e.g., `--filter "foo=bar" --filter "bif=baz"`)
The currently supported filters are:
* dangling (boolean - true or false)
* label (`label=<key>` or `label=<key>=<value>`)
* before (`<image-name>[:<tag>]`, `<image id>` or `<image@digest>`) - filter images created before given id or references
* since (`<image-name>[:<tag>]`, `<image id>` or `<image@digest>`) - filter images created since given id or references
* reference (pattern of an image reference) - filter images whose reference matches the specified pattern
#### Show untagged images (dangling)
```bash
$ docker images --filter "dangling=true"
REPOSITORY TAG IMAGE ID CREATED SIZE
<none> <none> 8abc22fbb042 4 weeks ago 0 B
<none> <none> 48e5f45168b9 4 weeks ago 2.489 MB
<none> <none> bf747efa0e2f 4 weeks ago 0 B
<none> <none> 980fe10e5736 12 weeks ago 101.4 MB
<none> <none> dea752e4e117 12 weeks ago 101.4 MB
<none> <none> 511136ea3c5a 8 months ago 0 B
```
This will display untagged images that are the leaves of the images tree (not
intermediary layers). These images occur when a new build of an image takes the
`repo:tag` away from the image ID, leaving it as `<none>:<none>` or untagged.
A warning will be issued if trying to remove an image when a container is presently
using it. By having this flag it allows for batch cleanup.
You can use this in conjunction with `docker rmi ...`:
```bash
$ docker rmi $(docker images -f "dangling=true" -q)
8abc22fbb042
48e5f45168b9
bf747efa0e2f
980fe10e5736
dea752e4e117
511136ea3c5a
```
> **Note**: Docker warns you if any containers exist that are using these
> untagged images.
#### Show images with a given label
The `label` filter matches images based on the presence of a `label` alone or a `label` and a
value.
The following filter matches images with the `com.example.version` label regardless of its value.
```bash
$ docker images --filter "label=com.example.version"
REPOSITORY TAG IMAGE ID CREATED SIZE
match-me-1 latest eeae25ada2aa About a minute ago 188.3 MB
match-me-2 latest dea752e4e117 About a minute ago 188.3 MB
```
The following filter matches images with the `com.example.version` label with the `1.0` value.
```bash
$ docker images --filter "label=com.example.version=1.0"
REPOSITORY TAG IMAGE ID CREATED SIZE
match-me latest 511136ea3c5a About a minute ago 188.3 MB
```
In this example, with the `0.1` value, it returns an empty set because no matches were found.
```bash
$ docker images --filter "label=com.example.version=0.1"
REPOSITORY TAG IMAGE ID CREATED SIZE
```
#### Filter images by time
The `before` filter shows only images created before the image with
given id or reference. For example, having these images:
```bash
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
image1 latest eeae25ada2aa 4 minutes ago 188.3 MB
image2 latest dea752e4e117 9 minutes ago 188.3 MB
image3 latest 511136ea3c5a 25 minutes ago 188.3 MB
```
Filtering with `before` would give:
```bash
$ docker images --filter "before=image1"
REPOSITORY TAG IMAGE ID CREATED SIZE
image2 latest dea752e4e117 9 minutes ago 188.3 MB
image3 latest 511136ea3c5a 25 minutes ago 188.3 MB
```
Filtering with `since` would give:
```bash
$ docker images --filter "since=image3"
REPOSITORY TAG IMAGE ID CREATED SIZE
image1 latest eeae25ada2aa 4 minutes ago 188.3 MB
image2 latest dea752e4e117 9 minutes ago 188.3 MB
```
#### Filter images by reference
The `reference` filter shows only images whose reference matches
the specified pattern.
```bash
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
busybox latest e02e811dd08f 5 weeks ago 1.09 MB
busybox uclibc e02e811dd08f 5 weeks ago 1.09 MB
busybox musl 733eb3059dce 5 weeks ago 1.21 MB
busybox glibc 21c16b6787c6 5 weeks ago 4.19 MB
```
Filtering with `reference` would give:
```bash
$ docker images --filter=reference='busy*:*libc'
REPOSITORY TAG IMAGE ID CREATED SIZE
busybox uclibc e02e811dd08f 5 weeks ago 1.09 MB
busybox glibc 21c16b6787c6 5 weeks ago 4.19 MB
```
### Format the output
The formatting option (`--format`) will pretty print container output
using a Go template.
Valid placeholders for the Go template are listed below:
| Placeholder | Description|
| ---- | ---- |
| `.ID` | Image ID |
| `.Repository` | Image repository |
| `.Tag` | Image tag |
| `.Digest` | Image digest |
| `.CreatedSince` | Elapsed time since the image was created |
| `.CreatedAt` | Time when the image was created |
| `.Size` | Image disk size |
When using the `--format` option, the `image` command will either
output the data exactly as the template declares or, when using the
`table` directive, will include column headers as well.
The following example uses a template without headers and outputs the
`ID` and `Repository` entries separated by a colon for all images:
```bash
$ docker images --format "{{.ID}}: {{.Repository}}"
77af4d6b9913: <none>
b6fa739cedf5: committ
78a85c484f71: <none>
30557a29d5ab: docker
5ed6274db6ce: <none>
746b819f315e: postgres
746b819f315e: postgres
746b819f315e: postgres
746b819f315e: postgres
```
To list all images with their repository and tag in a table format you
can use:
```bash
$ docker images --format "table {{.ID}}\t{{.Repository}}\t{{.Tag}}"
IMAGE ID REPOSITORY TAG
77af4d6b9913 <none> <none>
b6fa739cedf5 committ latest
78a85c484f71 <none> <none>
30557a29d5ab docker latest
5ed6274db6ce <none> <none>
746b819f315e postgres 9
746b819f315e postgres 9.3
746b819f315e postgres 9.3.5
746b819f315e postgres latest
```
@@ -1,89 +0,0 @@
---
title: "import"
description: "The import command description and usage"
keywords: "import, file, system, container"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# import
```markdown
Usage: docker import [OPTIONS] file|URL|- [REPOSITORY[:TAG]]
Import the contents from a tarball to create a filesystem image
Options:
-c, --change value Apply Dockerfile instruction to the created image (default [])
--help Print usage
-m, --message string Set commit message for imported image
```
## Description
You can specify a `URL` or `-` (dash) to take data directly from `STDIN`. The
`URL` can point to an archive (.tar, .tar.gz, .tgz, .bzip, .tar.xz, or .txz)
containing a filesystem or to an individual file on the Docker host. If you
specify an archive, Docker untars it in the container relative to the `/`
(root). If you specify an individual file, you must specify the full path within
the host. To import from a remote location, specify a `URI` that begins with the
`http://` or `https://` protocol.
The `--change` option will apply `Dockerfile` instructions to the image
that is created.
Supported `Dockerfile` instructions:
`CMD`|`ENTRYPOINT`|`ENV`|`EXPOSE`|`ONBUILD`|`USER`|`VOLUME`|`WORKDIR`
## Examples
### Import from a remote location
This will create a new untagged image.
```bash
$ docker import http://example.com/exampleimage.tgz
```
### Import from a local file
- Import to docker via pipe and `STDIN`.
```bash
$ cat exampleimage.tgz | docker import - exampleimagelocal:new
```
- Import with a commit message.
```bash
$ cat exampleimage.tgz | docker import --message "New image imported from tarball" - exampleimagelocal:new
```
- Import to docker from a local archive.
```bash
$ docker import /path/to/exampleimage.tgz
```
### Import from a local directory
```bash
$ sudo tar -c . | docker import - exampleimagedir
```
### Import from a local directory with new configurations
```bash
$ sudo tar -c . | docker import --change "ENV DEBUG true" - exampleimagedir
```
Note the `sudo` in this example – you must preserve
the ownership of the files (especially root ownership) during the
archiving with tar. If you are not root (or the sudo command) when you
tar, then the ownerships might not get preserved.
@@ -1,184 +0,0 @@
---
title: "Docker commands"
description: "Docker's CLI command description and usage"
keywords: "Docker, Docker documentation, CLI, command line"
identifier: "smn_cli_guide"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# The Docker commands
This section contains reference information on using Docker's command line
client. Each command has a reference page along with samples. If you are
unfamiliar with the command line, you should start by reading about how to [Use
the Docker command line](cli.md).
You start the Docker daemon with the command line. How you start the daemon
affects your Docker containers. For that reason you should also make sure to
read the [`dockerd`](dockerd.md) reference page.
## Commands by object
### Docker management commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [dockerd](dockerd.md) | Launch the Docker daemon |
| [info](info.md) | Display system-wide information |
| [inspect](inspect.md)| Return low-level information on a container or image |
| [version](version.md) | Show the Docker version information |
### Image commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [build](build.md) | Build an image from a Dockerfile |
| [commit](commit.md) | Create a new image from a container's changes |
| [history](history.md) | Show the history of an image |
| [images](images.md) | List images |
| [import](import.md) | Import the contents from a tarball to create a filesystem image |
| [load](load.md) | Load an image from a tar archive or STDIN |
| [image prune](image_prune.md) | Remove unused images |
| [rmi](rmi.md) | Remove one or more images |
| [save](save.md) | Save images to a tar archive |
| [tag](tag.md) | Tag an image into a repository |
### Container commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [attach](attach.md) | Attach to a running container |
| [container prune](container_prune.md) | Remove all stopped containers |
| [cp](cp.md) | Copy files/folders from a container to a HOSTDIR or to STDOUT |
| [create](create.md) | Create a new container |
| [diff](diff.md) | Inspect changes on a container's filesystem |
| [events](events.md) | Get real time events from the server |
| [exec](exec.md) | Run a command in a running container |
| [export](export.md) | Export a container's filesystem as a tar archive |
| [kill](kill.md) | Kill a running container |
| [logs](logs.md) | Fetch the logs of a container |
| [pause](pause.md) | Pause all processes within a container |
| [port](port.md) | List port mappings or a specific mapping for the container |
| [ps](ps.md) | List containers |
| [rename](rename.md) | Rename a container |
| [restart](restart.md) | Restart a running container |
| [rm](rm.md) | Remove one or more containers |
| [run](run.md) | Run a command in a new container |
| [start](start.md) | Start one or more stopped containers |
| [stats](stats.md) | Display a live stream of container(s) resource usage statistics |
| [stop](stop.md) | Stop a running container |
| [top](top.md) | Display the running processes of a container |
| [unpause](unpause.md) | Unpause all processes within a container |
| [update](update.md) | Update configuration of one or more containers |
| [wait](wait.md) | Block until a container stops, then print its exit code |
### Hub and registry commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [login](login.md) | Register or log in to a Docker registry |
| [logout](logout.md) | Log out from a Docker registry |
| [pull](pull.md) | Pull an image or a repository from a Docker registry |
| [push](push.md) | Push an image or a repository to a Docker registry |
| [search](search.md) | Search the Docker Hub for images |
### Network and connectivity commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [network connect](network_connect.md) | Connect a container to a network |
| [network create](network_create.md) | Create a new network |
| [network disconnect](network_disconnect.md) | Disconnect a container from a network |
| [network inspect](network_inspect.md) | Display information about a network |
| [network ls](network_ls.md) | Lists all the networks the Engine `daemon` knows about |
| [network prune](network_prune.md) | Remove all unused networks |
| [network rm](network_rm.md) | Removes one or more networks |
### Shared data volume commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [volume create](volume_create.md) | Creates a new volume where containers can consume and store data |
| [volume inspect](volume_inspect.md) | Display information about a volume |
| [volume ls](volume_ls.md) | Lists all the volumes Docker knows about |
| [volume prune](volume_prune.md) | Remove all unused volumes |
| [volume rm](volume_rm.md) | Remove one or more volumes |
### Swarm node commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [node demote](node_demote.md) | Demotes an existing manager so that it is no longer a manager |
| [node inspect](node_inspect.md) | Inspect a node in the swarm |
| [node ls](node_ls.md) | List nodes in the swarm |
| [node promote](node_promote.md) | Promote a node that is pending a promotion to manager |
| [node ps](node_ps.md) | List tasks running on one or more nodes |
| [node rm](node_rm.md) | Remove one or more nodes from the swarm |
| [node update](node_update.md) | Update attributes for a node |
### Swarm management commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [swarm init](swarm_init.md) | Initialize a swarm |
| [swarm join](swarm_join.md) | Join a swarm as a manager node or worker node |
| [swarm leave](swarm_leave.md) | Remove the current node from the swarm |
| [swarm join-token](swarm_join_token.md) | Display or rotate join tokens |
| [swarm unlock](swarm_unlock.md) | Unlock swarm |
| [swarm unlock-key](swarm_unlock_key.md) | Manage the unlock key |
| [swarm update](swarm_update.md) | Update attributes of a swarm |
### Swarm service commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [service create](service_create.md) | Create a new service |
| [service inspect](service_inspect.md) | Inspect a service |
| [service logs](service_logs.md) | Fetch the logs of a service or task |
| [service ls](service_ls.md) | List services in the swarm |
| [service ps](service_ps.md) | List the tasks of a service |
| [service rm](service_rm.md) | Remove a service from the swarm |
| [service scale](service_scale.md) | Set the number of replicas for the desired state of the service |
| [service update](service_update.md) | Update the attributes of a service |
### Swarm secret commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [secret create](secret_create.md) | Create a secret from a file or STDIN as content |
| [secret inspect](service_inspect.md) | Inspect the specified secret |
| [secret ls](secret_ls.md) | List secrets in the swarm |
| [secret rm](secret_rm.md) | Remove the specified secrets from the swarm |
### Swarm stack commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [stack deploy](stack_deploy.md) | Deploy a new stack or update an existing stack |
| [stack ls](stack_ls.md) | List stacks in the swarm |
| [stack ps](stack_ps.md) | List the tasks in the stack |
| [stack rm](stack_rm.md) | Remove the stack from the swarm |
| [stack services](stack_services.md) | List the services in the stack |
### Plugin commands
| Command | Description |
|:--------|:-------------------------------------------------------------------|
| [plugin create](plugin_create.md) | Create a plugin from a rootfs and configuration |
| [plugin disable](plugin_disable.md) | Disable a plugin |
| [plugin enable](plugin_enable.md) | Enable a plugin |
| [plugin inspect](plugin_inspect.md) | Display detailed information on a plugin |
| [plugin install](plugin_install.md) | Install a plugin |
| [plugin ls](plugin_ls.md) | List plugins |
| [plugin push](plugin_push.md) | Push a plugin to a registry |
| [plugin rm](plugin_rm.md) | Remove a plugin |
| [plugin set](plugin_set.md) | Change settings for a plugin |
@@ -1,245 +0,0 @@
---
title: "info"
description: "The info command description and usage"
keywords: "display, docker, information"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# info
```markdown
Usage: docker info [OPTIONS]
Display system-wide information
Options:
-f, --format string Format the output using the given Go template
--help Print usage
```
## Description
This command displays system wide information regarding the Docker installation.
Information displayed includes the kernel version, number of containers and images.
The number of images shown is the number of unique images. The same image tagged
under different names is counted only once.
If a format is specified, the given template will be executed instead of the
default format. Go's [text/template](http://golang.org/pkg/text/template/) package
describes all the details of the format.
Depending on the storage driver in use, additional information can be shown, such
as pool name, data file, metadata file, data space used, total data space, metadata
space used, and total metadata space.
The data file is where the images are stored and the metadata file is where the
meta data regarding those images are stored. When run for the first time Docker
allocates a certain amount of data space and meta data space from the space
available on the volume where `/var/lib/docker` is mounted.
## Examples
### Show output
The example below shows the output for a daemon running on Red Hat Enterprise Linux,
using the `devicemapper` storage driver. As can be seen in the output, additional
information about the `devicemapper` storage driver is shown:
```bash
$ docker info
Containers: 14
Running: 3
Paused: 1
Stopped: 10
Images: 52
Server Version: 1.10.3
Storage Driver: devicemapper
Pool Name: docker-202:2-25583803-pool
Pool Blocksize: 65.54 kB
Base Device Size: 10.74 GB
Backing Filesystem: xfs
Data file: /dev/loop0
Metadata file: /dev/loop1
Data Space Used: 1.68 GB
Data Space Total: 107.4 GB
Data Space Available: 7.548 GB
Metadata Space Used: 2.322 MB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.145 GB
Udev Sync Supported: true
Deferred Removal Enabled: false
Deferred Deletion Enabled: false
Deferred Deleted Device Count: 0
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Library Version: 1.02.107-RHEL7 (2015-12-01)
Execution Driver: native-0.2
Logging Driver: json-file
Plugins:
Volume: local
Network: null host bridge
Kernel Version: 3.10.0-327.el7.x86_64
Operating System: Red Hat Enterprise Linux Server 7.2 (Maipo)
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 991.7 MiB
Name: ip-172-30-0-91.ec2.internal
ID: I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S
Docker Root Dir: /var/lib/docker
Debug mode (client): false
Debug mode (server): false
Username: gordontheturtle
Registry: https://index.docker.io/v1/
Insecure registries:
myinsecurehost:5000
127.0.0.0/8
```
### Show debugging output
Here is a sample output for a daemon running on Ubuntu, using the overlay2
storage driver and a node that is part of a 2-node swarm:
```bash
$ docker -D info
Containers: 14
Running: 3
Paused: 1
Stopped: 10
Images: 52
Server Version: 1.13.0
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: active
NodeID: rdjq45w1op418waxlairloqbm
Is Manager: true
ClusterID: te8kdyw33n36fqiz74bfjeixd
Managers: 1
Nodes: 2
Orchestration:
Task History Retention Limit: 5
Raft:
Snapshot Interval: 10000
Number of Old Snapshots to Retain: 0
Heartbeat Tick: 1
Election Tick: 3
Dispatcher:
Heartbeat Period: 5 seconds
CA Configuration:
Expiry Duration: 3 months
Root Rotation In Progress: false
Node Address: 172.16.66.128 172.16.66.129
Manager Addresses:
172.16.66.128:2477
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 8517738ba4b82aff5662c97ca4627e7e4d03b531
runc version: ac031b5bf1cc92239461125f4c1ffb760522bbf2
init version: N/A (expected: v0.13.0)
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.4.0-31-generic
Operating System: Ubuntu 16.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 1.937 GiB
Name: ubuntu
ID: H52R:7ZR6:EIIA:76JG:ORIY:BVKF:GSFU:HNPG:B5MK:APSC:SZ3Q:N326
Docker Root Dir: /var/lib/docker
Debug Mode (client): true
Debug Mode (server): true
File Descriptors: 30
Goroutines: 123
System Time: 2016-11-12T17:24:37.955404361-08:00
EventsListeners: 0
Http Proxy: http://test:test@proxy.example.com:8080
Https Proxy: https://test:test@proxy.example.com:8080
No Proxy: localhost,127.0.0.1,docker-registry.somecorporation.com
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
Labels:
storage=ssd
staging=true
Experimental: false
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
http://192.168.1.2/
http://registry-mirror.example.com:5000/
Live Restore Enabled: false
```
The global `-D` option causes all `docker` commands to output debug information.
### Format the output
You can also specify the output format:
```bash
$ docker info --format '{{json .}}'
{"ID":"I54V:OLXT:HVMM:TPKO:JPHQ:CQCD:JNLC:O3BZ:4ZVJ:43XJ:PFHZ:6N2S","Containers":14, ...}
```
### Run `docker info` on Windows
Here is a sample output for a daemon running on Windows Server 2016:
```none
E:\docker>docker info
Containers: 1
Running: 0
Paused: 0
Stopped: 1
Images: 17
Server Version: 1.13.0
Storage Driver: windowsfilter
Windows:
Logging Driver: json-file
Plugins:
Volume: local
Network: nat null overlay
Swarm: inactive
Default Isolation: process
Kernel Version: 10.0 14393 (14393.206.amd64fre.rs1_release.160912-1937)
Operating System: Windows Server 2016 Datacenter
OSType: windows
Architecture: x86_64
CPUs: 8
Total Memory: 3.999 GiB
Name: WIN-V0V70C0LU5P
ID: NYMS:B5VK:UMSL:FVDZ:EWB5:FKVK:LPFL:FJMQ:H6FT:BZJ6:L2TD:XH62
Docker Root Dir: C:\control
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Insecure Registries:
127.0.0.0/8
Registry Mirrors:
http://192.168.1.2/
http://registry-mirror.example.com:5000/
Live Restore Enabled: false
```
@@ -1,122 +0,0 @@
---
title: "inspect"
description: "The inspect command description and usage"
keywords: "inspect, container, json"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# inspect
```markdown
Usage: docker inspect [OPTIONS] NAME|ID [NAME|ID...]
Return low-level information on Docker object(s) (e.g. container, image, volume,
network, node, service, or task) identified by name or ID
Options:
-f, --format Format the output using the given Go template
--help Print usage
-s, --size Display total file sizes if the type is container
--type Return JSON for specified type
```
## Description
Docker inspect provides detailed information on constructs controlled by Docker.
By default, `docker inspect` will render results in a JSON array.
## Request a custom response format (--format)
If a format is specified, the given template will be executed for each result.
Go's [text/template](http://golang.org/pkg/text/template/) package
describes all the details of the format.
## Specify target type (--type)
`--type container|image|node|network|secret|service|volume|task|plugin`
The `docker inspect` command matches any type of object by either ID or name.
In some cases multiple type of objects (for example, a container and a volume)
exist with the same name, making the result ambigious.
To restrict `docker inspect` to a specific type of object, use the `--type`
option.
The following example inspects a _volume_ named "myvolume"
```bash
$ docker inspect --type=volume myvolume
```
## Examples
### Get an instance's IP address
For the most part, you can pick out any field from the JSON in a fairly
straightforward manner.
```bash
$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' $INSTANCE_ID
```
### Get an instance's MAC address
```bash
$ docker inspect --format='{{range .NetworkSettings.Networks}}{{.MacAddress}}{{end}}' $INSTANCE_ID
```
### Get an instance's log path
```bash
$ docker inspect --format='{{.LogPath}}' $INSTANCE_ID
```
### Get an instance's image name
```bash
$ docker inspect --format='{{.Config.Image}}' $INSTANCE_ID
```
### List all port bindings
You can loop over arrays and maps in the results to produce simple text
output:
```bash
$ docker inspect --format='{{range $p, $conf := .NetworkSettings.Ports}} {{$p}} -> {{(index $conf 0).HostPort}} {{end}}' $INSTANCE_ID
```
### Find a specific port mapping
The `.Field` syntax doesn't work when the field name begins with a
number, but the template language's `index` function does. The
`.NetworkSettings.Ports` section contains a map of the internal port
mappings to a list of external address/port objects. To grab just the
numeric public port, you use `index` to find the specific port map, and
then `index` 0 contains the first object inside of that. Then we ask for
the `HostPort` field to get the public address.
```bash
$ docker inspect --format='{{(index (index .NetworkSettings.Ports "8787/tcp") 0).HostPort}}' $INSTANCE_ID
```
### Get a subsection in JSON format
If you request a field which is itself a structure containing other
fields, by default you get a Go-style dump of the inner values.
Docker adds a template function, `json`, which can be applied to get
results in JSON format.
```bash
$ docker inspect --format='{{json .Config}}' $INSTANCE_ID
```
@@ -1,35 +0,0 @@
---
title: "kill"
description: "The kill command description and usage"
keywords: "container, kill, signal"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# kill
```markdown
Usage: docker kill [OPTIONS] CONTAINER [CONTAINER...]
Kill one or more running containers
Options:
--help Print usage
-s, --signal string Signal to send to the container (default "KILL")
```
## Description
The main process inside the container will be sent `SIGKILL`, or any
signal specified with option `--signal`.
> **Note**: `ENTRYPOINT` and `CMD` in the *shell* form run as a subcommand of
> `/bin/sh -c`, which does not pass signals. This means that the executable is
> not the container’s PID 1 and does not receive Unix signals.
@@ -1,62 +0,0 @@
---
title: "load"
description: "The load command description and usage"
keywords: "stdin, tarred, repository"
---
<!-- This file is maintained within the docker/docker Github
repository at https://github.com/docker/docker/. Make all
pull requests against that repo. If you see this file in
another repository, consider it read-only there, as it will
periodically be overwritten by the definitive file. Pull
requests which include edits to this file in other repositories
will be rejected.
-->
# load
```markdown
Usage: docker load [OPTIONS]
Load an image from a tar archive or STDIN
Options:
--help Print usage
-i, --input string Read from tar archive file, instead of STDIN.
The tarball may be compressed with gzip, bzip, or xz
-q, --quiet Suppress the load output but still outputs the imported images
```
## Description
`docker load` loads a tarred repository from a file or the standard input stream.
It restores both images and tags.
## Examples
```bash
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
$ docker load < busybox.tar.gz
Loaded image: busybox:latest
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
busybox latest 769b9341d937 7 weeks ago 2.489 MB
$ docker load --input fedora.tar
Loaded image: fedora:rawhide
Loaded image: fedora:20
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
busybox latest 769b9341d937 7 weeks ago 2.489 MB
fedora rawhide 0d20aec6529d 7 weeks ago 387 MB
fedora 20 58394af37342 7 weeks ago 385.5 MB
fedora heisenbug 58394af37342 7 weeks ago 385.5 MB
fedora latest 58394af37342 7 weeks ago 385.5 MB
```

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