Based on work by KJ Tsanaktsidis
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: KJ Tsanaktsidis <kjtsanaktsidis@gmail.com>
Upstream-commit: 690882c2e79c3f3742c709cf158584e61594ba00
Component: engine
This fix tries to address the issue raised in 26453 where bad syntax
on dockerfile is not checked before building, thus user has to wait
before seeing error in dockerfile.
This fix fixes the issue by evaluating all the instructions and check
syntax before dockerfile is invoked actually.
All existing tests pass.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: c8dc2b156a079ce03db8f579094b9643632661a8
Component: engine
This moves the types for the `engine-api` repo to the existing types
package.
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: 91e197d614547f0202e6ae9b8a24d88ee131d950
Component: engine
We attached the JSON flag to the wrong AST node, causing Docker to treat
the exec form ["binary", "arg"] as if the shell form "binary arg" had
been used. This failed if "ls" was not present.
Added a test to detect this.
Fixes#26174
Signed-off-by: Thomas Leonard <thomas.leonard@docker.com>
Upstream-commit: e95b6b51daed868094c7b66113381d5088e831b4
Component: engine
The error message suggests you need one argument even when you
have provided one. Suggest having another argument.
Signed-off-by: Justin Cormack <justin.cormack@docker.com>
Upstream-commit: 4ce93940b7c2a640c94296f20352cf6f052d1028
Component: engine
Signed-off-by: John Howard <jhoward@microsoft.com>
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
Upstream-commit: 755be795b4e48b3eadcdf1427bf9731b0e97bed1
Component: engine
`TestParseWords` needs to use the `tokenEscape` for one of the test
cases, but `tokenEscape` was not being set unless tests ran in a
specific order.
This sets a default value for `tokenEscape`... `\`... so that tests that
rely on this global are not affected by test ordering.
This is the simplest fix for these cases. Ideally the token should not
be set as a global but rather passed down, which is a much larger
change.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: df167d3ff04cdc90012c8ca39647662ad69e6715
Component: engine
This fix tries to address the issue raised in 24912 where docker
build only consists of the current step without overall total steps.
This fix adds the overall total steps so that end user could follow
the progress of the docker build.
An additonal test has been added to cover the changes.
This fix fixes 24912.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 35418c145518c3f816ae5837beda7d853ce96dfc
Component: engine
In order to keep a little bit of "sanity" on the API side, validate
hostname only starting from v1.24 API version.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: 6daf3d2a783fd042e870c8af8bbd19fc28989505
Component: engine
This fix tries to address issues related to #23221 where Dockerignore
may consists of UTF-8 BOM. This likely happens when Notepad
tries to save a file as UTF-8 in Windows.
This fix skips the UTF-8 BOM bytes from the beginning of the
Dockerignore if exists.
Additional tests has been added to cover the changes in this fix.
This fix is related to #23221 (UTF-8 BOM in Dockerfile).
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: ea86320fcc61ea9ded3eef7ba01699c4e3ccf3ce
Component: engine
This fix tries to address issues in #23221 where Dockerfile
may consists of UTF-8 BOM. This likely happens when Notepad
tries to save a file as UTF-8 in Windows.
This fix skips the UTF-8 BOM bytes from the beginning of the
Dockerfile if exists.
Additional tests has been added to cover the changes in this
fix.
This fix fixes#23221.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 678c80f9256021ce74184fdd6b612d9dea377fba
Component: engine
This fix tries to address the issue raised in #20083 where
comment is not supported in `.dockerignore`.
This fix updated the processing of `.dockerignore` so that any
lines starting with `#` are ignored, which is similiar to the
behavior of `.gitignore`.
Related documentation has been updated.
Additional tests have been added to cover the changes.
This fix fixes#20083.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 8913dace341c8fc9f9a3ab9518c8521c161b307f
Component: engine
This PR adds support for user-defined health-check probes for Docker
containers. It adds a `HEALTHCHECK` instruction to the Dockerfile syntax plus
some corresponding "docker run" options. It can be used with a restart policy
to automatically restart a container if the check fails.
The `HEALTHCHECK` instruction has two forms:
* `HEALTHCHECK [OPTIONS] CMD command` (check container health by running a command inside the container)
* `HEALTHCHECK NONE` (disable any healthcheck inherited from the base image)
The `HEALTHCHECK` instruction tells Docker how to test a container to check that
it is still working. This can detect cases such as a web server that is stuck in
an infinite loop and unable to handle new connections, even though the server
process is still running.
When a container has a healthcheck specified, it has a _health status_ in
addition to its normal status. This status is initially `starting`. Whenever a
health check passes, it becomes `healthy` (whatever state it was previously in).
After a certain number of consecutive failures, it becomes `unhealthy`.
The options that can appear before `CMD` are:
* `--interval=DURATION` (default: `30s`)
* `--timeout=DURATION` (default: `30s`)
* `--retries=N` (default: `1`)
The health check will first run **interval** seconds after the container is
started, and then again **interval** seconds after each previous check completes.
If a single run of the check takes longer than **timeout** seconds then the check
is considered to have failed.
It takes **retries** consecutive failures of the health check for the container
to be considered `unhealthy`.
There can only be one `HEALTHCHECK` instruction in a Dockerfile. If you list
more than one then only the last `HEALTHCHECK` will take effect.
The command after the `CMD` keyword can be either a shell command (e.g. `HEALTHCHECK
CMD /bin/check-running`) or an _exec_ array (as with other Dockerfile commands;
see e.g. `ENTRYPOINT` for details).
The command's exit status indicates the health status of the container.
The possible values are:
- 0: success - the container is healthy and ready for use
- 1: unhealthy - the container is not working correctly
- 2: starting - the container is not ready for use yet, but is working correctly
If the probe returns 2 ("starting") when the container has already moved out of the
"starting" state then it is treated as "unhealthy" instead.
For example, to check every five minutes or so that a web-server is able to
serve the site's main page within three seconds:
HEALTHCHECK --interval=5m --timeout=3s \
CMD curl -f http://localhost/ || exit 1
To help debug failing probes, any output text (UTF-8 encoded) that the command writes
on stdout or stderr will be stored in the health status and can be queried with
`docker inspect`. Such output should be kept short (only the first 4096 bytes
are stored currently).
When the health status of a container changes, a `health_status` event is
generated with the new status. The health status is also displayed in the
`docker ps` output.
Signed-off-by: Thomas Leonard <thomas.leonard@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: b6c7becbfe1d76b1250f6d8e991e645e13808a9c
Component: engine
