Move thin pool related checks in a separate function. Pure code reorganization.
Makes reading code easier.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 69051ec0a58906e5252f902063ccead2075c8bed
Component: engine
This moves base device creation function in a separate function. Pure
code reorganization. Makes reading code little easier.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: efc1ddd7e3341124a2ebbb8a358f44754b32f310
Component: engine
This patch does three things. Following are the descriptions.
===
Create a separate function for delete transactions so that parent function
is little smaller.
Also close transaction if an error happens.
===
When docker is being shutdown, save deviceset metadata first before
trying to remove the devices. Generally caller gives only 10 seconds
for shutdown to complete and then kills it after that. So if some device
is busy, we will wait 20 seconds for it removal and never be able to save
metadata. So first save metadata and then deal with device removal.
===
Move issue discard operation in a separate function. This makes reading code
little easier.
Also don't issue discards if device is still open. That means devices is
still probably being used and issuing discards is not a good idea.
This is especially true in case of deferred deletion. We want to issue
discards when device is not open. At that time device can be deleted too.
Otherwise we will issue discards and deletion will actually fail. Later
we will try deletion again and issue discards again and deletion will
fail again as device is open and busy.
So this will ensure that discards are issued once when device is not open
and it can actually be deleted.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 482eca3099ad4bf3a7db62a31f88e2158cbbc933
Component: engine
Fixes an issue where a `Dead` container has no names so the API returns
`null` instead of an empty array.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 59b8a0f697355f1d404121f0c3e96c4957ac4608
Component: engine
Exec start was sending HTTP 500 for every error.
Fixed an error where pausing a container and then calling exec start
caused the daemon to freeze.
Updated API docs which incorrectly showed that a successful exec start
was an HTTP 201, in reality it is HTTP 200.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 2d43d93410c29cec87deb9cd940c3b2a8af5fbbb
Component: engine
Right now we seem to have 3 locks.
- devinfo.lock
This is a per device lock
- metaData.devicesLock
This is supposedely protecting map of devices.
- Global DeviceSet lock
This is protecting map of devices as well as serializing calls to libdevmapper.
Semantics of per devices lock and global deviceset lock seem to be very clear.
Even ordering between these two locks has been defined properly.
What is not clear is the need and ordering of metaData.devicesLock. Looks like
this lock is not necessary and global DeviceSet lock should be used to
protect map of devices as it is part of DeviceSet.
This patchset gets rid of metaData.devicesLock and instead uses DeviceSet
lock to protect map of devices.
Also at couple of places during initialization takes devices.Lock(). That
is not strictly necessary as there is supposed to be one thread of execution
during initializaiton. Still it makes the code clearer.
I think this makes code more clear and easier to understand and easier to
make further changes.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 289145ecc6c016b8bb6797cc50905e34da911e84
Component: engine
Looks like nobody is calling HasActivatedDevice(). Get rid of it.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 73f8b46d84e73929eacafe4c2f9676469f862c49
Component: engine
maxDeviceID is upper limit on device Id thin pool can support. Right now
we have this check only during startup. It is a good idea to move this
check in loadMetadata so that any time a device file is loaded and if it
is corrupted and device Id is more than maxDevieceID, it will be detected
right then and there.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 94caae2477f42b55adeab22f14bcef22b90373d6
Component: engine
Use deactivateDevice() instead of removeDevice() directly. This will make
sure for device deletion, deferred removal is used if user has configured
it in. Also this makes reading code litle easier as there is single function
to remove a device and that is deactivateDevice().
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: 39081eb3aa8f715c1da6f798c6531efd7a8a494c
Component: engine
If a device is still mounted at the time of DeleteDevice(), that means
higher layers have not called Put() properly on the device and are trying
to delete it. This is a bug in the code where Get() and Put() have not been
properly paired up. Fail device deletion if it is still mounted.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: e97e46b7376c3195383636d305d832b2ba3f82c5
Component: engine
Exists() and HasDevice() just check if device file exists or not. It does
not say anything about if device is mounted or not. Fix comments.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: f5c0eb9ffe9a9d30ac6ff81fa1a4c216908189a6
Component: engine
device has map (device.Devices), contains valid devices and we skip all
the files which are not device files. transaction metadata file is not
device file. Skip this file when devices files are being read and loaded
into map.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Upstream-commit: ba02bf31cbffe329e549516e0004cf113ab4517e
Component: engine
Implement basic interfaces to write custom routers that can be plugged
to the server. Remove server coupling with the daemon.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Upstream-commit: da982cf5511814b6897244ecaa9c016f8800340a
Component: engine
This passes through the container hostname to HCS, which in Windows Server
2016 TP4 will set the container's hostname in the registry before starting
it. This will be silently ignored by TP3.
Signed-off-by: John Starks <jostarks@microsoft.com>
Upstream-commit: 7e8c92ad72aecda178c41dbe7e1aa9269be39d5d
Component: engine
Although having a request ID available throughout the codebase is very
valuable, the impact of requiring a Context as an argument to every
function in the codepath of an API request, is too significant and was
not properly understood at the time of the review.
Furthermore, mixing API-layer code with non-API-layer code makes the
latter usable only by API-layer code (one that has a notion of Context).
This reverts commit de4164043546d2b9ee3bf323dbc41f4979c84480, reversing
changes made to 7daeecd42d7bb112bfe01532c8c9a962bb0c7967.
Signed-off-by: Tibor Vass <tibor@docker.com>
Conflicts:
api/server/container.go
builder/internals.go
daemon/container_unix.go
daemon/create.go
Upstream-commit: b08f071e18043abe8ce15f56826d38dd26bedb78
Component: engine
This reverts commit ff92f45be49146cd7ac7716c36d89de989cb262e, reversing
changes made to 80e31df3b6fdf6c1fbd6a5d0aceb0a148066508c.
Reverting to make the next revert easier.
Signed-off-by: Tibor Vass <tibor@docker.com>
Upstream-commit: 79c31f4b13d331d4011b2975a96dcdeab2036865
Component: engine
This fixes the case where directory is removed in
aufs and then the same layer is imported to a
different graphdriver.
Currently when you do `rm -rf /foo && mkdir /foo`
in a layer in aufs the files under `foo` would
only be be hidden on aufs.
The problems with this fix:
1) When a new diff is recreated from non-aufs driver
the `opq` files would not be there. This should not
mean layer differences for the user but still
different content in the tar (one would have one
`opq` file, the others would have `.wh.*` for every
file inside that folder). This difference also only
happens if the tar-split file isn’t stored for the
layer.
2) New files that have the filenames before `.wh..wh..opq`
when they are sorted do not get picked up by non-aufs
graphdrivers. Fixing this would require a bigger
refactoring that is planned in the future.
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Upstream-commit: 00e3277107a63218b656a36457caf380f9cabf37
Component: engine
Fixes an issue where `VOLUME some_name:/foo` would be parsed as a named
volume, allowing access from the builder to any volume on the host.
This makes sure that named volumes must always be passed in as a bind.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 8e5bb8fdd37879ec04c3419b8ecfce7a0477cdcf
Component: engine
We need to set the device array to nil to skip /dev setup in runc/libcontainer.
See c9d5850629
Signed-off-by: Mrunal Patel <mrunalp@gmail.com>
Upstream-commit: 4911b588627619b0e5c9cec5180b5aeea1e5fcd9
Component: engine
Before this patch libcontainer badly errored out with `invalid
argument` or `numerical result out of range` while trying to write
to cpuset.cpus or cpuset.mems with an invalid value provided.
This patch adds validation to --cpuset-cpus and --cpuset-mems flag along with
validation based on system's available cpus/mems before starting a container.
Signed-off-by: Antonio Murdaca <runcom@linux.com>
Upstream-commit: 94464e3a5e1dce0f6b3e821f79fe193278f67dba
Component: engine
Use `pkg/discovery` to provide nodes discovery between daemon instances.
The functionality is driven by two different command-line flags: the
experimental `--cluster-store` (previously `--kv-store`) and
`--cluster-advertise`. It can be used in two ways by interested
components:
1. Externally by calling the `/info` API and examining the cluster store
field. The `pkg/discovery` package can then be used to hit the same
endpoint and watch for appearing or disappearing nodes. That is the
method that will for example be used by Swarm.
2. Internally by using the `Daemon.discoveryWatcher` instance. That is
the method that will for example be used by libnetwork.
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Upstream-commit: 7d193ef1f3b5fcd6aa55b7376116e2617be12e06
Component: engine
* Thanks to the Default gateway service in libnetwork, we dont have to add
containers explicitly to secondary public network. This is handled
automatically regardless of the primary network driver.
* Fixed the URL convention for kv-store to be aligned with the upcoming
changes to discovery URL
* Also, in order to bring consistency between external and internal network
drivers, we moved the driver configs via controller Init.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Upstream-commit: 6db1592066da48cf9ac619cef7d8d7b3a39db518
Component: engine
- use existing exposed type
Signed-off-by: Morgan Bauer <mbauer@us.ibm.com>
Upstream-commit: 93bd57b0b21e1a802b80388c8fc034780e3200fc
Component: engine
