it was introduced with #20566 as a result of merge
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: 93f57705110e196dca1cf2b2ce7d261ee97b9e4e
Component: engine
This cleans up some of the use of the filepoller which makes reading
significantly more robust and gives fewer changes to fallback to the
polling based watcher.
In a lot of cases, if the file was being rotated while we were adding it
to the watcher, it would return an error that the file doesn't exist and
would fallback.
In some cases this fallback could be triggered multiple times even if we
were already on the fallback/poll-based watcher.
It also fixes an open file leak caused by not closing files properly on
rotate, as well as not closing files that were read via the `tail`
function until after the log reader is completed.
Prior to the above changes, it was relatively simple to cause the log
reader to error out by having quick rotations, for example:
```
$ docker run --name test --log-opt max-size=10b --log-opt max-files=10
-d busybox sh -c 'while true; do usleep 500000; echo hello; done'
$ docker logs -f test
```
After these changes I can run this forever without error.
Another fix removes 2 `os.Stat` calls when rotating files. The stat
calls are not needed since we are just calling `os.Rename` anyway, which
will in turn also just produce the same error that `Stat` would.
These `Stat` calls were also quite expensive.
Removing these stat calls also seemed to resolve an issue causing slow
memory growth on the daemon.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 1ae9dcf97dc6ccaf7a7977fe8ae1812b691ccba2
Component: engine
OomScoreAjd is not part of `/info` output
Wrong field name `DiscoveryBackend` in API reference
Signed-off-by: Arnaud Porterie <arnaud.porterie@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 9014ac2d15b65559468ef0496061a38b919e1680
Component: engine
The issue comes from the implementation of volumeSplitN() where a
driver letter (`[a-zA-Z]:`) was assumed to follow either `:`, `/`,
or `\\`.
In Windows driver letter appears in two situations:
a. `^[a-zA-Z]:` (A colon followed by `^[a-zA-Z]:` is OK as colon is
the separator in volume option)
b. A string in the format like `\\?\C:\Windows\...` (UNC).
Therefore, a driver letter can only follow either a `:` or `\\`
This PR removes the condition of `/` before the driver letter so
that options like `-v /tmp/q:/foo` could be handled correctly. A
couple of tests has also been added.
This PR fixes#20122.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 800a7d513d3b80478a7996cb2c357b72f65e0b09
Component: engine
This fix updates the Plugin API docs to cover the case of remote
plugins which could be deployed on a host different from the
docker host, through spec or json files.
This fix closes#20188.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: c3ef69270ad397f9e43fc78c15b87ea19b011024
Component: engine
so that the user knows what's not in the container but should be.
Its not always easy for the user to know what exact command is being run
when the 'docker run' is embedded deep in something else, like a Makefile.
Saw this while dealing with the containerd migration.
Signed-off-by: Doug Davis <dug@us.ibm.com>
Upstream-commit: 79421606388169151c31d1c34079a98f53170ab8
Component: engine
This version supports async connections.
Signed-off-by: Pierre Carrier <pierre@meteor.com>
Upstream-commit: 9c2a0739fb9c5e3636425d669f0ab860ea1bfbae
Component: engine
Changes how the Engine interacts with Registry servers on image pull.
Previously, Engine sent a User-Agent string to the Registry server
that included only the Engine's version information. This commit
appends to that string the fields from the User-Agent sent by the
client (e.g., Compose) of the Engine. This allows Registry server
operators to understand what tools are actually generating pulls on
their registries.
Signed-off-by: Mike Goelzer <mgoelzer@docker.com>
Upstream-commit: d1502afb63a10df0bfce20ae2957774cfb3e58d8
Component: engine
- Added a few more diagrams.
- Fixed typos and a few additional details.
- Moved experimental images to a new directory
in /experimental/images per @cpuguy83 suggestion.
Signed-off-by: Brent Salisbury <brent@docker.com>
Upstream-commit: 8926af95e4af4c3f8c6e28d1d054b9b6b7a13ff9
Component: engine
