Golang Pod.Containers方法代碼示例

// TODO(random-liu): Convert PodStatus to running Pod, should be deprecated soon
func ConvertPodStatusToRunningPod(runtimeName string, podStatus *kubecontainer.PodStatus) kubecontainer.Pod {
	runningPod := kubecontainer.Pod{
		ID:        podStatus.ID,
		Name:      podStatus.Name,
		Namespace: podStatus.Namespace,
	}
	for _, containerStatus := range podStatus.ContainerStatuses {
		if containerStatus.State != kubecontainer.ContainerStateRunning {
			continue
		}
		container := &kubecontainer.Container{
			ID:      containerStatus.ID,
			Name:    containerStatus.Name,
			Image:   containerStatus.Image,
			ImageID: containerStatus.ImageID,
			Hash:    containerStatus.Hash,
			State:   containerStatus.State,
		}
		runningPod.Containers = append(runningPod.Containers, container)
	}

	// Need to place a sandbox in the Pod as well.
	for _, sandbox := range podStatus.SandboxStatuses {
		runningPod.Sandboxes = append(runningPod.Sandboxes, &kubecontainer.Container{
			ID:    kubecontainer.ContainerID{Type: runtimeName, ID: *sandbox.Id},
			State: sandboxToKubeContainerState(*sandbox.State),
		})
	}

	return runningPod
}

// GetPods returns a list containers group by pods. The boolean parameter
// specifies whether the runtime returns all containers including those already
// exited and dead containers (used for garbage collection).
func (r *runtime) GetPods(all bool) ([]*kubecontainer.Pod, error) {
	podInfos, err := r.hyperClient.ListPods()
	if err != nil {
		return nil, err
	}

	var kubepods []*kubecontainer.Pod
	for _, podInfo := range podInfos {
		var pod kubecontainer.Pod
		var containers []*kubecontainer.Container

		podID, podName, podNamespace, err := r.parseHyperPodFullName(podInfo.PodName)
		if err != nil {
			glog.V(5).Infof("Hyper: pod %s is not managed by kubelet", podInfo.PodName)
			continue
		}

		pod.ID = types.UID(podID)
		pod.Name = podName
		pod.Namespace = podNamespace

		for _, cinfo := range podInfo.PodInfo.Spec.Containers {
			var container kubecontainer.Container
			container.ID = kubecontainer.ContainerID{Type: typeHyper, ID: cinfo.ContainerID}
			container.Image = cinfo.Image

			for _, cstatus := range podInfo.PodInfo.Status.Status {
				if cstatus.ContainerID == r.buildContainerID(cinfo.ContainerID) {
					createAt, err := parseTimeString(cstatus.Running.StartedAt)
					if err == nil {
						container.Created = createAt.Unix()
					}
				}
			}

			_, _, _, containerName, containerHash, err := r.parseHyperContainerFullName(cinfo.Name)
			if err != nil {
				glog.V(5).Infof("Hyper: container %s is not managed by kubelet", cinfo.Name)
				continue
			}
			container.Name = containerName

			hash, err := strconv.ParseUint(containerHash, 16, 64)
			if err == nil {
				container.Hash = hash
			}

			containers = append(containers, &container)
		}
		pod.Containers = containers

		kubepods = append(kubepods, &pod)
	}

	return kubepods, nil
}

func dockerContainersToPod(containers []*docker.APIContainers) kubecontainer.Pod {
	var pod kubecontainer.Pod
	for _, c := range containers {
		dockerName, hash, err := ParseDockerName(c.Names[0])
		if err != nil {
			continue
		}
		pod.Containers = append(pod.Containers, &kubecontainer.Container{
			ID:    kubecontainer.ContainerID{"docker", c.ID},
			Name:  dockerName.ContainerName,
			Hash:  hash,
			Image: c.Image,
		})
		// TODO(yifan): Only one evaluation is enough.
		pod.ID = dockerName.PodUID
		name, namespace, _ := kubecontainer.ParsePodFullName(dockerName.PodFullName)
		pod.Name = name
		pod.Namespace = namespace
	}
	return pod
}

// GetPods returns a list containers group by pods. The boolean parameter
// specifies whether the runtime returns all containers including those already
// exited and dead containers (used for garbage collection).
func (r *runtime) GetPods(all bool) ([]*kubecontainer.Pod, error) {
	podInfos, err := r.hyperClient.ListPods()
	if err != nil {
		return nil, err
	}

	var kubepods []*kubecontainer.Pod
	for _, podInfo := range podInfos {
		var pod kubecontainer.Pod
		var containers []*kubecontainer.Container

		if !all && podInfo.Status != StatusRunning {
			continue
		}

		podID := podInfo.PodInfo.Spec.Labels[KEY_API_POD_UID]
		podName, podNamespace, err := kubecontainer.ParsePodFullName(podInfo.PodName)
		if err != nil {
			glog.V(5).Infof("Hyper: pod %s is not managed by kubelet", podInfo.PodName)
			continue
		}

		pod.ID = types.UID(podID)
		pod.Name = podName
		pod.Namespace = podNamespace

		for _, cinfo := range podInfo.PodInfo.Spec.Containers {
			var container kubecontainer.Container
			container.ID = kubecontainer.ContainerID{Type: typeHyper, ID: cinfo.ContainerID}
			container.Image = cinfo.Image

			for _, cstatus := range podInfo.PodInfo.Status.ContainerStatus {
				if cstatus.ContainerID == cinfo.ContainerID {
					switch cstatus.Phase {
					case StatusRunning:
						container.State = kubecontainer.ContainerStateRunning
					default:
						container.State = kubecontainer.ContainerStateExited
					}

					// harryz: container.Created is moved to ContainerStatus
					// createAt, err := parseTimeString(cstatus.Running.StartedAt)
					// if err == nil {
					// 	container.Created = createAt.Unix()
					// }
				}
			}

			_, _, _, containerName, _, containerHash, err := r.parseHyperContainerFullName(cinfo.Name)
			if err != nil {
				glog.V(5).Infof("Hyper: container %s is not managed by kubelet", cinfo.Name)
				continue
			}
			container.Name = containerName

			hash, err := strconv.ParseUint(containerHash, 16, 64)
			if err == nil {
				container.Hash = hash
			}

			containers = append(containers, &container)
		}
		pod.Containers = containers

		kubepods = append(kubepods, &pod)
	}

	return kubepods, nil
}