Merge pull request #22662 from giuseppe/drop-ancient-conmon-check

Revert "container stop: kill conmon"
This commit is contained in:
openshift-merge-bot[bot]
2024-05-13 12:18:55 +00:00
committed by GitHub

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@ -1512,7 +1512,6 @@ func (c *Container) restartWithTimeout(ctx context.Context, timeout uint) (retEr
c.newContainerEvent(events.Restart)
if c.state.State == define.ContainerStateRunning {
conmonPID := c.state.ConmonPID
if err := c.stop(timeout); err != nil {
return err
}
@ -1522,23 +1521,6 @@ func (c *Container) restartWithTimeout(ctx context.Context, timeout uint) (retEr
logrus.Error(err.Error())
}
}
// Old versions of conmon have a bug where they create the exit file before
// closing open file descriptors causing a race condition when restarting
// containers with open ports since we cannot bind the ports as they're not
// yet closed by conmon.
//
// Killing the old conmon PID is ~okay since it forces the FDs of old conmons
// to be closed, while it's a NOP for newer versions which should have
// exited already.
if conmonPID != 0 {
// Ignore errors from FindProcess() as conmon could already have exited.
p, err := os.FindProcess(conmonPID)
if p != nil && err == nil {
if err = p.Kill(); err != nil {
logrus.Debugf("error killing conmon process: %v", err)
}
}
}
// Ensure we tear down the container network so it will be
// recreated - otherwise, behavior of restart differs from stop
// and start