Commit 78c204ef79 added
(f9bd8ec8b268581f93095c5a80679f0a8ff498bf in the moby repo)
a validation to prevent `--rollback` from being used
in combination with other flags that update the
service spec.
This validation was not taking into account that
some flags only affect the CLI behavior, and
are okay to be used when rolling back.
This patch updates the validation, and adds
`--quiet` and `--detach` to the list of allowed
flags.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: f10f29df8d
Component: cli
For stack compose files, use filepath.IsAbs instead of path.IsAbs, for
bind-mounted service volumes, because filepath.IsAbs handles Windows
paths, while path.IsAbs does not.
Signed-off-by: John Stephens <johnstep@docker.com>
Upstream-commit: 9043d39dea
Component: cli
Generate a token for each download process to avoid token expired.
Closes: #33441
Signed-off-by: vanderliang <lansheng@meili-inc.com>
Upstream-commit: cb502cd4e894a78e723902a4d2f23174b69430ce
Component: engine
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>
Upstream-commit: 37fd6128dc
Component: cli
This makes integration not depend anymore of `cli` and thus not
require `cobra` and other packages to compile.
Signed-off-by: Vincent Demeester <vincent@sbr.pm>
Upstream-commit: 71d60ec0eb7eeddc73d2cf63748ab7debe3f06af
Component: engine
When closing the log-file, and the file is already
closed, there's no need to log an error.
This patch adds a `closed` boolean to check if the
file was closed, and if so, skip closing the file.
This prevents errors like this being logged:
level=error msg="Error closing logger: invalid argument"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Upstream-commit: 07b51ed300429e88871e40b4d67dc031e2e8901c
Component: engine
This was mistakenly unmounting everything under `plugins/*` instead of
just `plugins/<id>/*` anytime a plugin is removed.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Upstream-commit: db5f31732a9868c1e9e4f9a49be70b794ff82d4f
Component: engine
It has observed defunct containerd processes accumulating over
time while dockerd was permanently failing to restart containerd.
Due to a bug in the runContainerdDaemon() function, dockerd does not clean up
its child process if containerd already exits very soon after the (re)start.
The reproducer and analysis below comes from docker 1.12.x but bug
still applies on latest master.
- from libcontainerd/remote_linux.go:
329 func (r *remote) runContainerdDaemon() error {
:
: // start the containerd child process
:
403 if err := cmd.Start(); err != nil {
404 return err
405 }
:
: // If containerd exits very soon after (re)start, it is
possible
: // that containerd is already in defunct state at the time
when
: // dockerd gets here. The setOOMScore() function tries to
write
: // to /proc/PID_OF_CONTAINERD/oom_score_adj. However, this
fails
: // with errno EINVAL because containerd is defunct. Please see
: // snippets of kernel source code and further explanation
below.
:
407 if err := setOOMScore(cmd.Process.Pid, r.oomScore); err != nil
{
408 utils.KillProcess(cmd.Process.Pid)
:
: // Due to the error from write() we return here. As
the
: // goroutine that would clean up the child has not
been
: // started yet, containerd remains in the defunct
state
: // and never gets reaped.
:
409 return err
410 }
:
417 go func() {
418 cmd.Wait()
419 close(r.daemonWaitCh)
420 }() // Reap our child when needed
:
423 }
This is the kernel function that gets invoked when dockerd tries to
write
to /proc/PID_OF_CONTAINERD/oom_score_adj.
- from fs/proc/base.c:
1197 static ssize_t oom_score_adj_write(struct file *file, ...
1198 size_t count, loff_t
*ppos)
1199 {
:
1223 task = get_proc_task(file_inode(file));
:
: // The defunct containerd process does not have a virtual
: // address space anymore, i.e. task->mm is NULL. Thus the
: // following code returns errno EINVAL to dockerd.
:
1230 if (!task->mm) {
1231 err = -EINVAL;
1232 goto err_task_lock;
1233 }
:
1253 err_task_lock:
:
1257 return err < 0 ? err : count;
1258 }
The purpose of the following program is to demonstrate the behavior of
the oom_score_adj_write() function in connection with a defunct process.
$ cat defunct_test.c
\#include <unistd.h>
main()
{
pid_t pid = fork();
if (pid == 0)
// child
_exit(0);
// parent
pause();
}
$ make defunct_test
cc defunct_test.c -o defunct_test
$ ./defunct_test &
[1] 3142
$ ps -f | grep defunct_test | grep -v grep
root 3142 2956 0 13:04 pts/0 00:00:00 ./defunct_test
root 3143 3142 0 13:04 pts/0 00:00:00 [defunct_test] <defunct>
$ echo "ps 3143" | crash -s
PID PPID CPU TASK ST %MEM VSZ RSS COMM
3143 3142 2 ffff880035def300 ZO 0.0 0 0
defunct_test
$ echo "px ((struct task_struct *)0xffff880035def300)->mm" | crash -s
$1 = (struct mm_struct *) 0x0
^^^ task->mm is NULL
$ cat /proc/3143/oom_score_adj
0
$ echo 0 > /proc/3143/oom_score_adj
-bash: echo: write error: Invalid argument"
---
This patch fixes the above issue by making sure we start the reaper
goroutine as soon as possible.
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Upstream-commit: 27087eacbf96e6ef9d48a6d3dc89c7c1cff155b4
Component: engine
