During a plugin remove, docker performs an `os.Rename` to move the
plugin data dir to a new location before removing to acheive an atomic
removal.
`os.Rename` can return either a `NotExist` error if the source path
doesn't exist, or an `Exist` error if the target path already exists.
Both these cases can happen when there is an error on the final
`os.Remove` call, which is common on older kernels (`device or resource
busy`).
When calling rename, we can safely ignore these error types and proceed
to try and remove the plugin.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: 93027b1ff2475b66b6321b5722009fad4def8187
Component: engine
A small golint fix with ro_layer.go.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 19918b88b7b9fe6fc668847f31c94068c78ef2d1
Component: engine
Adds git date plus git commit sha to static builds if the version being
built for is a development version
Output is similar to: `docker-18.02.0-ce-dev-20180120.170357-fa4fb35.tgz`
Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
Upstream-commit: 8a86c3a6a54760b19cd67854bf68e408bd2a17fb
Component: packaging
This change sets an explicit mount propagation for the daemon root.
This is useful for people who need to bind mount the docker daemon root
into a container.
Since bind mounting the daemon root should only ever happen with at
least `rlsave` propagation (to prevent the container from holding
references to mounts making it impossible for the daemon to clean up its
resources), we should make sure the user is actually able to this.
Most modern systems have shared root (`/`) propagation by default
already, however there are some cases where this may not be so
(e.g. potentially docker-in-docker scenarios, but also other cases).
So this just gives the daemon a little more control here and provides
a more uniform experience across different systems.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: a510192b86e7eb1e1112f3f625d80687fdec6578
Component: engine
This fix tries to address the issue raised in 36083 where
`network inspect` does not show Created time if the network is
created in swarm scope.
The issue was that Created was not converted from swarm api.
This fix addresses the issue.
An unit test has been added.
This fix fixes 36083.
Signed-off-by: Yong Tang <yong.tang.github@outlook.com>
Upstream-commit: 090c439fb8a863731cc80fcb9932ce5958d8166d
Component: engine
Since systemd version 228, a new setting, `TasksMax`, has appeared,
which limits the number of tasks used by a service (via pids cgroup
controller). Unfortunately, a default for this setting, `DefaultTaskMax`,
is set to 512. In systemd version 231 it is changed to 15% which
practically is 4195, as the value from /proc/sys/kernel/pid_max is
treated like 100%).
Either 512 or 4195 is severily limited value for Docker Engine,
as it can run thousands of containers with thousands of tasks in each,
and the number of tasks limit should be set on a per-container basis
by the Docker user. So, the most reasonable setting for `TasksMax`
is `unlimited`.
Unfortunately, older versions of systemd warn about unknown `TasksMax`
parameter in `docker.service` file, and the warning is rather annoying,
therefore this setting is commented out by default, and is supposed
to be uncommented by the user.
The problem with that is, once the limit is hit, all sorts of bad things
happen and it's not really clear even to an advanced user that this
setting is the source of issues.
Now, `rules` file already contain a hack to check for the systemd
version (during build time) and in case the version is greater than 227,
uncomment the `TasksMax=unlimited` line. Alas, it does not work
during normal builds, the reason being systemd is not installed
into build environments.
An obvious fix would be to add systemd to the list of installed
packages in all Dockerfiles used to build debs. Fortunately,
there is a simpler way, as libsystemd-dev is installed, and
it's a subpackage of systemd built from the same source and
carrying the same version, so it can also be checked.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: d80738e4b4459816c64757a2a63e5d8058d0ccf4
Component: packaging
Since systemd version 228, a new setting, `TasksMax`, has appeared, which
limits the number of tasks used by a service (via pids cgroup
controller). Unfortunately, a default for this setting, `DefaultTaskMax`,
is set to 512. In systemd version 231 it is changed to 15% which
practically is 4195, as the value from /proc/sys/kernel/pid_max is
treated like 100%).
Either 512 or 4195 is severily limited value for Docker Engine, as it
can run thousands of containers with thousands of tasks in each, and
the number of tasks limit should be set on a per-container basis by the
Docker user. So, the most reasonable setting for `TasksMax` is `unlimited`.
Unfortunately, older versions of systemd warn about unknown `TasksMax`
parameter in `docker.service` file, and the warning is rather annoying,
therefore this setting is commented out by default, and is supposed to
be uncommented by the user.
The problem with that is, once the limit is hit, all sorts of bad things
happen and it's not really clear even to an advanced user that this
setting is the source of issues.
As Fedora 25 ships systemd 231, it (and later Fedora releases) support
TasksMax, so it makes total sense to uncomment the setting, this is what
this commit does.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Upstream-commit: 9055832bb0725f05d518c3ebc9b7cc93a69420c7
Component: packaging
Yong Tang
Brian Goff
GordonTheTurtle
Vincent Demeester
John Howard
Sebastiaan van Stijn
Daniel Nephin
Sebastiaan van Stijn
Eli Uriegas
Eli Uriegas
Noah Meyerhans
Silvin Lubecki
Andrew Hsu
Michael Crosby
Kir Kolyshkin