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[1.1] fix runc's poststart behaviour doesn't match the runtime-spec #4351

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[1.1] fix runc's poststart behaviour doesn't match the runtime-spec #4351

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32 changes: 18 additions & 14 deletions libcontainer/container_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -270,7 +270,11 @@ func (c *linuxContainer) exec() error {
for {
select {
case result := <-blockingFifoOpenCh:
return handleFifoResult(result)
err := handleFifoResult(result)
if err != nil {
return err
}
return c.postStart()

case <-time.After(time.Millisecond * 100):
stat, err := system.Stat(pid)
Expand All @@ -286,6 +290,19 @@ func (c *linuxContainer) exec() error {
}
}

func (c *linuxContainer) postStart() error {
s, err := c.currentOCIState()
if err != nil {
return err
}
if c.config.Hooks != nil {
if err := c.config.Hooks[configs.Poststart].RunHooks(s); err != nil {
return fmt.Errorf("run postStart hook: %w", err)
}
}
return nil
}

func readFromExecFifo(execFifo io.Reader) error {
data, err := io.ReadAll(execFifo)
if err != nil {
Expand Down Expand Up @@ -368,19 +385,6 @@ func (c *linuxContainer) start(process *Process) (retErr error) {

if process.Init {
c.fifo.Close()
if c.config.Hooks != nil {
s, err := c.currentOCIState()
if err != nil {
return err
}

if err := c.config.Hooks[configs.Poststart].RunHooks(s); err != nil {
if err := ignoreTerminateErrors(parent.terminate()); err != nil {
logrus.Warn(fmt.Errorf("error running poststart hook: %w", err))
}
return err
}
}
}
return nil
}
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