func (daemon *Daemon) shutdownContainer(c *container.Container) error {
stopTimeout := c.StopTimeout()
// TODO(windows): Handle docker restart with paused containers
if c.IsPaused() {
// To terminate a process in freezer cgroup, we should send
// SIGTERM to this process then unfreeze it, and the process will
// force to terminate immediately.
logrus.Debugf("Found container %s is paused, sending SIGTERM before unpausing it", c.ID)
sig, ok := signal.SignalMap["TERM"]
if !ok {
return fmt.Errorf("System does not support SIGTERM")
}
if err := daemon.kill(c, int(sig)); err != nil {
return fmt.Errorf("sending SIGTERM to container %s with error: %v", c.ID, err)
}
if err := daemon.containerUnpause(c); err != nil {
return fmt.Errorf("Failed to unpause container %s with error: %v", c.ID, err)
}
if _, err := c.WaitStop(time.Duration(stopTimeout) * time.Second); err != nil {
logrus.Debugf("container %s failed to exit in %d second of SIGTERM, sending SIGKILL to force", c.ID, stopTimeout)
sig, ok := signal.SignalMap["KILL"]
if !ok {
return fmt.Errorf("System does not support SIGKILL")
}
if err := daemon.kill(c, int(sig)); err != nil {
logrus.Errorf("Failed to SIGKILL container %s", c.ID)
}
c.WaitStop(-1 * time.Second)
return err
}
}
// If container failed to exit in stopTimeout seconds of SIGTERM, then using the force
if err := daemon.containerStop(c, stopTimeout); err != nil {
return fmt.Errorf("Failed to stop container %s with error: %v", c.ID, err)
}
c.WaitStop(-1 * time.Second)
return nil
}
