Exemple #1
0
// toPodStatus converts a podInfo type into an api.PodStatus type.
func (p *podInfo) toPodStatus(pod *qingcontainer.Pod) api.PodStatus {
	var status api.PodStatus
	status.PodIP = p.ip
	// For now just make every container's state the same as the pod.
	for _, container := range pod.Containers {
		status.ContainerStatuses = append(status.ContainerStatuses, p.getContainerStatus(container))
	}
	return status
}
func (s *statusManager) SetPodStatus(pod *api.Pod, status api.PodStatus) {
	podFullName := qingcontainer.GetPodFullName(pod)
	s.podStatusesLock.Lock()
	defer s.podStatusesLock.Unlock()
	oldStatus, found := s.podStatuses[podFullName]

	// ensure that the start time does not change across updates.
	if found && oldStatus.StartTime != nil {
		status.StartTime = oldStatus.StartTime
	}

	// if the status has no start time, we need to set an initial time
	// TODO(yujuhong): Consider setting StartTime when generating the pod
	// status instead, which would allow statusManager to become a simple cache
	// again.
	if status.StartTime.IsZero() {
		if pod.Status.StartTime.IsZero() {
			// the pod did not have a previously recorded value so set to now
			now := util.Now()
			status.StartTime = &now
		} else {
			// the pod had a recorded value, but the qinglet restarted so we need to rebuild cache
			// based on last observed value
			status.StartTime = pod.Status.StartTime
		}
	}

	// TODO: Holding a lock during blocking operations is dangerous. Refactor so this isn't necessary.
	// The intent here is to prevent concurrent updates to a pod's status from
	// clobbering each other so the phase of a pod progresses monotonically.
	// Currently this routine is not called for the same pod from multiple
	// workers and/or the qinglet but dropping the lock before sending the
	// status down the channel feels like an easy way to get a bullet in foot.
	if !found || !isStatusEqual(&oldStatus, &status) {
		s.podStatuses[podFullName] = status
		s.podStatusChannel <- podStatusSyncRequest{pod, status}
	} else {
		glog.V(3).Infof("Ignoring same pod status for %q - old: %+v new: %+v", podFullName, oldStatus, status)
	}
}