// Start runs a loop in charge of starting new containers
func (w *worker) Start() {
defer w.wg.Done()
for t := range w.s.startTasks {
started := time.Now()
process, err := t.Container.Start(t.CheckpointPath, runtime.NewStdio(t.Stdin, t.Stdout, t.Stderr))
if err != nil {
logrus.WithFields(logrus.Fields{
"error": err,
"id": t.Container.ID(),
}).Error("containerd: start container")
t.Err <- err
evt := &DeleteTask{
ID: t.Container.ID(),
NoEvent: true,
}
w.s.SendTask(evt)
continue
}
if err := w.s.monitor.MonitorOOM(t.Container); err != nil && err != runtime.ErrContainerExited {
if process.State() != runtime.Stopped {
logrus.WithField("error", err).Error("containerd: notify OOM events")
}
}
if err := w.s.monitorProcess(process); err != nil {
logrus.WithField("error", err).Error("containerd: add process to monitor")
}
if err := process.Start(); err != nil {
logrus.WithField("error", err).Error("containerd: start init process")
}
ContainerStartTimer.UpdateSince(started)
t.Err <- nil
t.StartResponse <- StartResponse{
Container: t.Container,
}
w.s.notifySubscribers(Event{
Timestamp: time.Now(),
ID: t.Container.ID(),
Type: StateStart,
})
}
}
func (s *Supervisor) addProcess(t *AddProcessTask) error {
start := time.Now()
ci, ok := s.containers[t.ID]
if !ok {
return ErrContainerNotFound
}
process, err := ci.container.Exec(t.PID, *t.ProcessSpec, runtime.NewStdio(t.Stdin, t.Stdout, t.Stderr))
if err != nil {
return err
}
if err := s.monitorProcess(process); err != nil {
return err
}
ExecProcessTimer.UpdateSince(start)
t.StartResponse <- StartResponse{}
s.notifySubscribers(Event{
Timestamp: time.Now(),
Type: StateStartProcess,
PID: t.PID,
ID: t.ID,
})
return nil
}