Golang Pod示例

说明

golang pod示例是从最受好评的开源项目中提取的实现代码,你可以参考下面示例的使用方式。

编程语言: Golang

命名空间/包名称: k8s/io/kubernetes/pkg/kubelet/util/format

示例#1
文件: kuberuntime_sandbox.go 项目: jonboulle/kubernetes

// createPodSandbox creates a pod sandbox and returns (podSandBoxID, message, error).
func (m *kubeGenericRuntimeManager) createPodSandbox(pod *v1.Pod, attempt uint32) (string, string, error) {
	podSandboxConfig, err := m.generatePodSandboxConfig(pod, attempt)
	if err != nil {
		message := fmt.Sprintf("GeneratePodSandboxConfig for pod %q failed: %v", format.Pod(pod), err)
		glog.Error(message)
		return "", message, err
	}

	// Create pod logs directory
	err = m.osInterface.MkdirAll(podSandboxConfig.GetLogDirectory(), 0755)
	if err != nil {
		message := fmt.Sprintf("Create pod log directory for pod %q failed: %v", format.Pod(pod), err)
		glog.Errorf(message)
		return "", message, err
	}

	podSandBoxID, err := m.runtimeService.RunPodSandbox(podSandboxConfig)
	if err != nil {
		message := fmt.Sprintf("CreatePodSandbox for pod %q failed: %v", format.Pod(pod), err)
		glog.Error(message)
		return "", message, err
	}

	return podSandBoxID, "", nil
}

示例#2
文件: runonce.go 项目: RomainVabre/origin

// runOnce runs a given set of pods and returns their status.
func (kl *Kubelet) runOnce(pods []*api.Pod, retryDelay time.Duration) (results []RunPodResult, err error) {
	ch := make(chan RunPodResult)
	admitted := []*api.Pod{}
	for _, pod := range pods {
		// Check if we can admit the pod.
		if ok, reason, message := kl.canAdmitPod(append(admitted, pod), pod); !ok {
			kl.rejectPod(pod, reason, message)
		} else {
			admitted = append(admitted, pod)
		}
		go func(pod *api.Pod) {
			err := kl.runPod(pod, retryDelay)
			ch <- RunPodResult{pod, err}
		}(pod)
	}

	glog.Infof("waiting for %d pods", len(pods))
	failedPods := []string{}
	for i := 0; i < len(pods); i++ {
		res := <-ch
		results = append(results, res)
		if res.Err != nil {
			// TODO(proppy): report which containers failed the pod.
			glog.Infof("failed to start pod %q: %v", format.Pod(res.Pod), res.Err)
			failedPods = append(failedPods, format.Pod(res.Pod))
		} else {
			glog.Infof("started pod %q", format.Pod(res.Pod))
		}
	}
	if len(failedPods) > 0 {
		return results, fmt.Errorf("error running pods: %v", failedPods)
	}
	glog.Infof("%d pods started", len(pods))
	return results, err
}

示例#3
文件: prober_manager.go 项目: alex-mohr/kubernetes

func (m *manager) AddPod(pod *v1.Pod) {
	m.workerLock.Lock()
	defer m.workerLock.Unlock()

	key := probeKey{podUID: pod.UID}
	for _, c := range pod.Spec.Containers {
		key.containerName = c.Name

		if c.ReadinessProbe != nil {
			key.probeType = readiness
			if _, ok := m.workers[key]; ok {
				glog.Errorf("Readiness probe already exists! %v - %v",
					format.Pod(pod), c.Name)
				return
			}
			w := newWorker(m, readiness, pod, c)
			m.workers[key] = w
			go w.run()
		}

		if c.LivenessProbe != nil {
			key.probeType = liveness
			if _, ok := m.workers[key]; ok {
				glog.Errorf("Liveness probe already exists! %v - %v",
					format.Pod(pod), c.Name)
				return
			}
			w := newWorker(m, liveness, pod, c)
			m.workers[key] = w
			go w.run()
		}
	}
}

示例#4

// podSandboxChanged checks whether the spec of the pod is changed and returns
// (changed, new attempt, original sandboxID if exist).
func (m *kubeGenericRuntimeManager) podSandboxChanged(pod *api.Pod, podStatus *kubecontainer.PodStatus) (changed bool, attempt uint32, sandboxID string) {
	if len(podStatus.SandboxStatuses) == 0 {
		glog.V(2).Infof("No sandbox for pod %q can be found. Need to start a new one", format.Pod(pod))
		return true, 0, ""
	}

	readySandboxCount := 0
	for _, s := range podStatus.SandboxStatuses {
		if s.GetState() == runtimeApi.PodSandBoxState_READY {
			readySandboxCount++
		}
	}

	// Needs to create a new sandbox when readySandboxCount > 1 or the ready sandbox is not the latest one.
	sandboxStatus := podStatus.SandboxStatuses[0]
	if readySandboxCount > 1 || sandboxStatus.GetState() != runtimeApi.PodSandBoxState_READY {
		glog.V(2).Infof("No ready sandbox for pod %q can be found. Need to start a new one", format.Pod(pod))
		return true, sandboxStatus.Metadata.GetAttempt() + 1, sandboxStatus.GetId()
	}

	// Needs to create a new sandbox when network namespace changed.
	if sandboxStatus.Linux != nil && sandboxStatus.Linux.Namespaces.Options != nil &&
		sandboxStatus.Linux.Namespaces.Options.GetHostNetwork() != kubecontainer.IsHostNetworkPod(pod) {
		glog.V(2).Infof("Sandbox for pod %q has changed. Need to start a new one", format.Pod(pod))
		return true, sandboxStatus.Metadata.GetAttempt() + 1, ""
	}

	return false, sandboxStatus.Metadata.GetAttempt(), sandboxStatus.GetId()
}

示例#5
文件: manager.go 项目: mataihang/kubernetes

// updateStatusInternal updates the internal status cache, and queues an update to the api server if
// necessary. Returns whether an update was triggered.
// This method IS NOT THREAD SAFE and must be called from a locked function.
func (m *manager) updateStatusInternal(pod *api.Pod, status api.PodStatus, forceUpdate bool) bool {
	var oldStatus api.PodStatus
	cachedStatus, isCached := m.podStatuses[pod.UID]
	if isCached {
		oldStatus = cachedStatus.status
	} else if mirrorPod, ok := m.podManager.GetMirrorPodByPod(pod); ok {
		oldStatus = mirrorPod.Status
	} else {
		oldStatus = pod.Status
	}

	// Set ReadyCondition.LastTransitionTime.
	if readyCondition := api.GetPodReadyCondition(status); readyCondition != nil {
		// Need to set LastTransitionTime.
		lastTransitionTime := unversioned.Now()
		oldReadyCondition := api.GetPodReadyCondition(oldStatus)
		if oldReadyCondition != nil && readyCondition.Status == oldReadyCondition.Status {
			lastTransitionTime = oldReadyCondition.LastTransitionTime
		}
		readyCondition.LastTransitionTime = lastTransitionTime
	}

	// ensure that the start time does not change across updates.
	if oldStatus.StartTime != nil && !oldStatus.StartTime.IsZero() {
		status.StartTime = oldStatus.StartTime
	} else if status.StartTime.IsZero() {
		// if the status has no start time, we need to set an initial time
		now := unversioned.Now()
		status.StartTime = &now
	}

	normalizeStatus(&status)
	// 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.
	if isCached && isStatusEqual(&cachedStatus.status, &status) && !forceUpdate {
		glog.V(3).Infof("Ignoring same status for pod %q, status: %+v", format.Pod(pod), status)
		return false // No new status.
	}

	newStatus := versionedPodStatus{
		status:       status,
		version:      cachedStatus.version + 1,
		podName:      pod.Name,
		podNamespace: pod.Namespace,
	}
	m.podStatuses[pod.UID] = newStatus

	select {
	case m.podStatusChannel <- podStatusSyncRequest{pod.UID, newStatus}:
		return true
	default:
		// Let the periodic syncBatch handle the update if the channel is full.
		// We can't block, since we hold the mutex lock.
		glog.V(4).Infof("Skpping the status update for pod %q for now because the channel is full; status: %+v",
			format.Pod(pod), status)
		return false
	}
}

示例#6
文件: manager.go 项目: Juniper/kubernetes

func (m *manager) SetContainerReadiness(pod *api.Pod, containerID kubecontainer.ContainerID, ready bool) {
	m.podStatusesLock.Lock()
	defer m.podStatusesLock.Unlock()

	oldStatus, found := m.podStatuses[pod.UID]
	if !found {
		glog.Warningf("Container readiness changed before pod has synced: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}

	// Find the container to update.
	containerIndex := -1
	for i, c := range oldStatus.status.ContainerStatuses {
		if c.ContainerID == containerID.String() {
			containerIndex = i
			break
		}
	}
	if containerIndex == -1 {
		glog.Warningf("Container readiness changed for unknown container: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}

	if oldStatus.status.ContainerStatuses[containerIndex].Ready == ready {
		glog.V(4).Infof("Container readiness unchanged (%v): %q - %q", ready,
			format.Pod(pod), containerID.String())
		return
	}

	// Make sure we're not updating the cached version.
	clone, err := api.Scheme.DeepCopy(&oldStatus.status)
	if err != nil {
		glog.Errorf("Failed to clone status %+v: %v", oldStatus.status, err)
		return
	}
	status := *clone.(*api.PodStatus)
	status.ContainerStatuses[containerIndex].Ready = ready

	// Update pod condition.
	readyConditionIndex := -1
	for i, condition := range status.Conditions {
		if condition.Type == api.PodReady {
			readyConditionIndex = i
			break
		}
	}
	readyCondition := GeneratePodReadyCondition(&pod.Spec, status.ContainerStatuses, status.Phase)
	if readyConditionIndex != -1 {
		status.Conditions[readyConditionIndex] = readyCondition
	} else {
		glog.Warningf("PodStatus missing PodReady condition: %+v", status)
		status.Conditions = append(status.Conditions, readyCondition)
	}

	m.updateStatusInternal(pod, status)
}

示例#7
文件: desired_state_of_world_populator.go 项目: RyanBinfeng/kubernetes

// Iterate through all pods in desired state of world, and remove if they no
// longer exist
func (dswp *desiredStateOfWorldPopulator) findAndRemoveDeletedPods() {
	var runningPods []*kubecontainer.Pod

	runningPodsFetched := false
	for _, volumeToMount := range dswp.desiredStateOfWorld.GetVolumesToMount() {
		if _, podExists :=
			dswp.podManager.GetPodByUID(volumeToMount.Pod.UID); podExists {
			continue
		}

		// Once a pod has been deleted from kubelet pod manager, do not delete
		// it immediately from volume manager. Instead, check the kubelet
		// containerRuntime to verify that all containers in the pod have been
		// terminated.
		if !runningPodsFetched {
			var getPodsErr error
			runningPods, getPodsErr = dswp.kubeContainerRuntime.GetPods(false)
			if getPodsErr != nil {
				glog.Errorf(
					"kubeContainerRuntime.findAndRemoveDeletedPods returned error %v.",
					getPodsErr)
				continue
			}

			runningPodsFetched = true
			dswp.timeOfLastGetPodStatus = time.Now()
		}

		runningContainers := false
		for _, runningPod := range runningPods {
			if runningPod.ID == volumeToMount.Pod.UID {
				if len(runningPod.Containers) > 0 {
					runningContainers = true
				}

				break
			}
		}

		if runningContainers {
			glog.V(5).Infof(
				"Pod %q has been removed from pod manager. However, it still has one or more containers in the non-exited state. Therefore it will not be removed from volume manager.",
				format.Pod(volumeToMount.Pod))
			continue
		}

		glog.V(5).Infof(
			"Removing volume %q (volSpec=%q) for pod %q from desired state.",
			volumeToMount.VolumeName,
			volumeToMount.VolumeSpec.Name(),
			format.Pod(volumeToMount.Pod))

		dswp.desiredStateOfWorld.DeletePodFromVolume(
			volumeToMount.PodName, volumeToMount.VolumeName)
		dswp.deleteProcessedPod(volumeToMount.PodName)
	}
}

示例#8
文件: status_manager.go 项目: XbinZh/kubernetes

func (m *manager) SetContainerReadiness(podUID types.UID, containerID kubecontainer.ContainerID, ready bool) {
	m.podStatusesLock.Lock()
	defer m.podStatusesLock.Unlock()

	pod, ok := m.podManager.GetPodByUID(podUID)
	if !ok {
		glog.V(4).Infof("Pod %q has been deleted, no need to update readiness", string(podUID))
		return
	}

	oldStatus, found := m.podStatuses[pod.UID]
	if !found {
		glog.Warningf("Container readiness changed before pod has synced: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}

	// Find the container to update.
	containerStatus, _, ok := findContainerStatus(&oldStatus.status, containerID.String())
	if !ok {
		glog.Warningf("Container readiness changed for unknown container: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}

	if containerStatus.Ready == ready {
		glog.V(4).Infof("Container readiness unchanged (%v): %q - %q", ready,
			format.Pod(pod), containerID.String())
		return
	}

	// Make sure we're not updating the cached version.
	status, err := copyStatus(&oldStatus.status)
	if err != nil {
		return
	}
	containerStatus, _, _ = findContainerStatus(&status, containerID.String())
	containerStatus.Ready = ready

	// Update pod condition.
	readyConditionIndex := -1
	for i, condition := range status.Conditions {
		if condition.Type == api.PodReady {
			readyConditionIndex = i
			break
		}
	}
	readyCondition := GeneratePodReadyCondition(&pod.Spec, status.ContainerStatuses, status.Phase)
	if readyConditionIndex != -1 {
		status.Conditions[readyConditionIndex] = readyCondition
	} else {
		glog.Warningf("PodStatus missing PodReady condition: %+v", status)
		status.Conditions = append(status.Conditions, readyCondition)
	}

	m.updateStatusInternal(pod, status, false)
}

示例#9
文件: status_manager.go 项目: nak3/kubernetes

// syncPod syncs the given status with the API server. The caller must not hold the lock.
func (m *manager) syncPod(uid types.UID, status versionedPodStatus) {
	if !m.needsUpdate(uid, status) {
		glog.V(1).Infof("Status for pod %q is up-to-date; skipping", uid)
		return
	}

	// TODO: make me easier to express from client code
	pod, err := m.kubeClient.Core().Pods(status.podNamespace).Get(status.podName, metav1.GetOptions{})
	if errors.IsNotFound(err) {
		glog.V(3).Infof("Pod %q (%s) does not exist on the server", status.podName, uid)
		// If the Pod is deleted the status will be cleared in
		// RemoveOrphanedStatuses, so we just ignore the update here.
		return
	}
	if err == nil {
		translatedUID := m.podManager.TranslatePodUID(pod.UID)
		if len(translatedUID) > 0 && translatedUID != uid {
			glog.V(2).Infof("Pod %q was deleted and then recreated, skipping status update; old UID %q, new UID %q", format.Pod(pod), uid, translatedUID)
			m.deletePodStatus(uid)
			return
		}
		pod.Status = status.status
		if err := podutil.SetInitContainersStatusesAnnotations(pod); err != nil {
			glog.Error(err)
		}
		// TODO: handle conflict as a retry, make that easier too.
		pod, err = m.kubeClient.Core().Pods(pod.Namespace).UpdateStatus(pod)
		if err == nil {
			glog.V(3).Infof("Status for pod %q updated successfully: %+v", format.Pod(pod), status)
			m.apiStatusVersions[pod.UID] = status.version
			if kubepod.IsMirrorPod(pod) {
				// We don't handle graceful deletion of mirror pods.
				return
			}
			if pod.DeletionTimestamp == nil {
				return
			}
			if !notRunning(pod.Status.ContainerStatuses) {
				glog.V(3).Infof("Pod %q is terminated, but some containers are still running", format.Pod(pod))
				return
			}
			deleteOptions := v1.NewDeleteOptions(0)
			// Use the pod UID as the precondition for deletion to prevent deleting a newly created pod with the same name and namespace.
			deleteOptions.Preconditions = v1.NewUIDPreconditions(string(pod.UID))
			if err = m.kubeClient.Core().Pods(pod.Namespace).Delete(pod.Name, deleteOptions); err == nil {
				glog.V(3).Infof("Pod %q fully terminated and removed from etcd", format.Pod(pod))
				m.deletePodStatus(uid)
				return
			}
		}
	}

	// We failed to update status, wait for periodic sync to retry.
	glog.Warningf("Failed to update status for pod %q: %v", format.Pod(pod), err)
}

示例#10
文件: kubelet_pods.go 项目: ncdc/kubernetes

// checkHostPortConflicts detects pods with conflicted host ports.
func hasHostPortConflicts(pods []*api.Pod) bool {
	ports := sets.String{}
	for _, pod := range pods {
		if errs := validation.AccumulateUniqueHostPorts(pod.Spec.Containers, &ports, field.NewPath("spec", "containers")); len(errs) > 0 {
			glog.Errorf("Pod %q: HostPort is already allocated, ignoring: %v", format.Pod(pod), errs)
			return true
		}
		if errs := validation.AccumulateUniqueHostPorts(pod.Spec.InitContainers, &ports, field.NewPath("spec", "initContainers")); len(errs) > 0 {
			glog.Errorf("Pod %q: HostPort is already allocated, ignoring: %v", format.Pod(pod), errs)
			return true
		}
	}
	return false
}

示例#11
文件: rkt.go 项目: knobunc/kubernetes

// RunPod first creates the unit file for a pod, and then
// starts the unit over d-bus.
func (r *Runtime) RunPod(pod *api.Pod, pullSecrets []api.Secret) error {
	glog.V(4).Infof("Rkt starts to run pod: name %q.", format.Pod(pod))

	name, runtimePod, prepareErr := r.preparePod(pod, pullSecrets)

	// Set container references and generate events.
	// If preparedPod fails, then send out 'failed' events for each container.
	// Otherwise, store the container references so we can use them later to send events.
	for i, c := range pod.Spec.Containers {
		ref, err := kubecontainer.GenerateContainerRef(pod, &c)
		if err != nil {
			glog.Errorf("Couldn't make a ref to pod %q, container %v: '%v'", format.Pod(pod), c.Name, err)
			continue
		}
		if prepareErr != nil {
			r.recorder.Eventf(ref, api.EventTypeWarning, kubecontainer.FailedToCreateContainer, "Failed to create rkt container with error: %v", prepareErr)
			continue
		}
		containerID := runtimePod.Containers[i].ID
		r.containerRefManager.SetRef(containerID, ref)
	}

	if prepareErr != nil {
		return prepareErr
	}

	r.generateEvents(runtimePod, "Created", nil)

	// RestartUnit has the same effect as StartUnit if the unit is not running, besides it can restart
	// a unit if the unit file is changed and reloaded.
	reschan := make(chan string)
	_, err := r.systemd.RestartUnit(name, "replace", reschan)
	if err != nil {
		r.generateEvents(runtimePod, "Failed", err)
		return err
	}

	res := <-reschan
	if res != "done" {
		err := fmt.Errorf("Failed to restart unit %q: %s", name, res)
		r.generateEvents(runtimePod, "Failed", err)
		return err
	}

	r.generateEvents(runtimePod, "Started", nil)

	return nil
}

示例#12
文件: eviction_manager.go 项目: luxas/flannel

// Admit rejects a pod if its not safe to admit for node stability.
func (m *managerImpl) Admit(attrs *lifecycle.PodAdmitAttributes) lifecycle.PodAdmitResult {
	m.RLock()
	defer m.RUnlock()
	if len(m.nodeConditions) == 0 {
		return lifecycle.PodAdmitResult{Admit: true}
	}

	// Check the node conditions to identify the resource under pressure.
	// The resource can only be either disk or memory; set the default to disk.
	resource := api.ResourceStorage
	if hasNodeCondition(m.nodeConditions, api.NodeMemoryPressure) {
		resource = api.ResourceMemory
		// the node has memory pressure, admit if not best-effort
		notBestEffort := qos.BestEffort != qos.GetPodQOS(attrs.Pod)
		if notBestEffort {
			return lifecycle.PodAdmitResult{Admit: true}
		}
	}

	// reject pods when under memory pressure (if pod is best effort), or if under disk pressure.
	glog.Warningf("Failed to admit pod %q - node has conditions: %v", format.Pod(attrs.Pod), m.nodeConditions)
	return lifecycle.PodAdmitResult{
		Admit:   false,
		Reason:  reason,
		Message: getMessage(resource),
	}
}

示例#13
文件: helpers.go 项目: johndmulhausen/kubernetes

// TODO(random-liu): This should be removed soon after rkt implements GetPodStatus.
func ShouldContainerBeRestartedOldVersion(container *api.Container, pod *api.Pod, podStatus *api.PodStatus) bool {
	// Get all dead container status.
	var resultStatus []*api.ContainerStatus
	for i, containerStatus := range podStatus.ContainerStatuses {
		if containerStatus.Name == container.Name && containerStatus.State.Terminated != nil {
			resultStatus = append(resultStatus, &podStatus.ContainerStatuses[i])
		}
	}

	// Check RestartPolicy for dead container.
	if len(resultStatus) > 0 {
		if pod.Spec.RestartPolicy == api.RestartPolicyNever {
			glog.V(4).Infof("Already ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
			return false
		}
		if pod.Spec.RestartPolicy == api.RestartPolicyOnFailure {
			// Check the exit code of last run. Note: This assumes the result is sorted
			// by the created time in reverse order.
			if resultStatus[0].State.Terminated.ExitCode == 0 {
				glog.V(4).Infof("Already successfully ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
				return false
			}
		}
	}
	return true
}

示例#14
文件: manager.go 项目: fwalker/dashboard

// updateStatusInternal updates the internal status cache, and queues an update to the api server if
// necessary. Returns whether an update was triggered.
// This method IS NOT THREAD SAFE and must be called from a locked function.
func (m *manager) updateStatusInternal(pod *api.Pod, status api.PodStatus) bool {
	// 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.
	oldStatus, found := m.podStatuses[pod.UID]
	if found && isStatusEqual(&oldStatus.status, &status) && pod.DeletionTimestamp == nil {
		glog.V(3).Infof("Ignoring same status for pod %q, status: %+v", format.Pod(pod), status)
		return false // No new status.
	}

	newStatus := versionedPodStatus{
		status:       status,
		version:      oldStatus.version + 1,
		podName:      pod.Name,
		podNamespace: pod.Namespace,
	}
	m.podStatuses[pod.UID] = newStatus

	select {
	case m.podStatusChannel <- podStatusSyncRequest{pod.UID, newStatus}:
		return true
	default:
		// Let the periodic syncBatch handle the update if the channel is full.
		// We can't block, since we hold the mutex lock.
		return false
	}
}

示例#15
文件: manager.go 项目: bmeck/kubernetes

// needsReconcile compares the given status with the status in the pod manager (which
// in fact comes from apiserver), returns whether the status needs to be reconciled with
// the apiserver. Now when pod status is inconsistent between apiserver and kubelet,
// kubelet should forcibly send an update to reconclie the inconsistence, because kubelet
// should be the source of truth of pod status.
// NOTE(random-liu): It's simpler to pass in mirror pod uid and get mirror pod by uid, but
// now the pod manager only supports getting mirror pod by static pod, so we have to pass
// static pod uid here.
// TODO(random-liu): Simplify the logic when mirror pod manager is added.
func (m *manager) needsReconcile(uid types.UID, status api.PodStatus) bool {
	// The pod could be a static pod, so we should translate first.
	pod, ok := m.podManager.GetPodByUID(uid)
	if !ok {
		// Although we get uid from pod manager in syncBatch, it still could be deleted before here.
		glog.V(4).Infof("Pod %q has been deleted, no need to reconcile", format.Pod(pod))
		return false
	}
	// If the pod is a static pod, we should check its mirror pod, because only status in mirror pod is meaningful to us.
	if kubepod.IsStaticPod(pod) {
		mirrorPod, ok := m.podManager.GetMirrorPodByPod(pod)
		if !ok {
			glog.V(4).Infof("Static pod %q has no corresponding mirror pod, no need to reconcile", format.Pod(pod))
			return false
		}
		pod = mirrorPod
	}

	if isStatusEqual(&pod.Status, &status) {
		// If the status from the source is the same with the cached status,
		// reconcile is not needed. Just return.
		return false
	}
	glog.V(3).Infof("Pod status is inconsistent with cached status, a reconciliation should be triggered:\n %+v", util.ObjectDiff(pod.Status, status))

	return true
}

示例#16
文件: pod_workers.go 项目: kubernetes/kubernetes

func (p *podWorkers) managePodLoop(podUpdates <-chan UpdatePodOptions) {
	var lastSyncTime time.Time
	for update := range podUpdates {
		err := func() error {
			podUID := update.Pod.UID
			// This is a blocking call that would return only if the cache
			// has an entry for the pod that is newer than minRuntimeCache
			// Time. This ensures the worker doesn't start syncing until
			// after the cache is at least newer than the finished time of
			// the previous sync.
			status, err := p.podCache.GetNewerThan(podUID, lastSyncTime)
			if err != nil {
				return err
			}
			err = p.syncPodFn(syncPodOptions{
				mirrorPod:      update.MirrorPod,
				pod:            update.Pod,
				podStatus:      status,
				killPodOptions: update.KillPodOptions,
				updateType:     update.UpdateType,
			})
			lastSyncTime = time.Now()
			return err
		}()
		// notify the call-back function if the operation succeeded or not
		if update.OnCompleteFunc != nil {
			update.OnCompleteFunc(err)
		}
		if err != nil {
			glog.Errorf("Error syncing pod %s (%q), skipping: %v", update.Pod.UID, format.Pod(update.Pod), err)
			p.recorder.Eventf(update.Pod, v1.EventTypeWarning, events.FailedSync, "Error syncing pod, skipping: %v", err)
		}
		p.wrapUp(update.Pod.UID, err)
	}
}

示例#17
文件: nodecontroller.go 项目: wenhuizhang/kubernetes

// update ready status of all pods running on given node from master
// return true if success
func (nc *NodeController) markAllPodsNotReady(nodeName string) error {
	glog.V(2).Infof("Update ready status of pods on node [%v]", nodeName)
	opts := api.ListOptions{FieldSelector: fields.OneTermEqualSelector(client.PodHost, nodeName)}
	pods, err := nc.kubeClient.Core().Pods(api.NamespaceAll).List(opts)
	if err != nil {
		return err
	}

	errMsg := []string{}
	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}

		for i, cond := range pod.Status.Conditions {
			if cond.Type == api.PodReady {
				pod.Status.Conditions[i].Status = api.ConditionFalse
				glog.V(2).Infof("Updating ready status of pod %v to false", pod.Name)
				pod, err := nc.kubeClient.Core().Pods(pod.Namespace).UpdateStatus(&pod)
				if err != nil {
					glog.Warningf("Failed to updated status for pod %q: %v", format.Pod(pod), err)
					errMsg = append(errMsg, fmt.Sprintf("%v", err))
				}
				break
			}
		}
	}
	if len(errMsg) == 0 {
		return nil
	}
	return fmt.Errorf("%v", strings.Join(errMsg, "; "))
}

示例#18
文件: helpers.go 项目: ZenoRewn/origin

// ShouldContainerBeRestarted checks whether a container needs to be restarted.
// TODO(yifan): Think about how to refactor this.
func ShouldContainerBeRestarted(container *api.Container, pod *api.Pod, podStatus *PodStatus) bool {
	// Get latest container status.
	status := podStatus.FindContainerStatusByName(container.Name)
	// If the container was never started before, we should start it.
	// NOTE(random-liu): If all historical containers were GC'd, we'll also return true here.
	if status == nil {
		return true
	}
	// Check whether container is running
	if status.State == ContainerStateRunning {
		return false
	}
	// Always restart container in unknown state now
	if status.State == ContainerStateUnknown {
		return true
	}
	// Check RestartPolicy for dead container
	if pod.Spec.RestartPolicy == api.RestartPolicyNever {
		glog.V(4).Infof("Already ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
		return false
	}
	if pod.Spec.RestartPolicy == api.RestartPolicyOnFailure {
		// Check the exit code.
		if status.ExitCode == 0 {
			glog.V(4).Infof("Already successfully ran container %q of pod %q, do nothing", container.Name, format.Pod(pod))
			return false
		}
	}
	return true
}

示例#19

// GetPodStatus retrieves the status of the pod, including the
// information of all containers in the pod that are visble in Runtime.
func (m *kubeGenericRuntimeManager) GetPodStatus(uid kubetypes.UID, name, namespace string) (*kubecontainer.PodStatus, error) {
	// Now we retain restart count of container as a container label. Each time a container
	// restarts, pod will read the restart count from the registered dead container, increment
	// it to get the new restart count, and then add a label with the new restart count on
	// the newly started container.
	// However, there are some limitations of this method:
	//	1. When all dead containers were garbage collected, the container status could
	//	not get the historical value and would be *inaccurate*. Fortunately, the chance
	//	is really slim.
	//	2. When working with old version containers which have no restart count label,
	//	we can only assume their restart count is 0.
	// Anyhow, we only promised "best-effort" restart count reporting, we can just ignore
	// these limitations now.
	// TODO: move this comment to SyncPod.
	podSandboxIDs, err := m.getSandboxIDByPodUID(string(uid), nil)
	if err != nil {
		return nil, err
	}

	podFullName := format.Pod(&api.Pod{
		ObjectMeta: api.ObjectMeta{
			Name:      name,
			Namespace: namespace,
			UID:       uid,
		},
	})
	glog.V(4).Infof("getSandboxIDByPodUID got sandbox IDs %q for pod %q", podSandboxIDs, podFullName)

	sandboxStatuses := make([]*runtimeApi.PodSandboxStatus, len(podSandboxIDs))
	podIP := ""
	for idx, podSandboxID := range podSandboxIDs {
		podSandboxStatus, err := m.runtimeService.PodSandboxStatus(podSandboxID)
		if err != nil {
			glog.Errorf("PodSandboxStatus of sandbox %q for pod %q error: %v", podSandboxID, podFullName, err)
			return nil, err
		}
		sandboxStatuses[idx] = podSandboxStatus

		// Only get pod IP from latest sandbox
		if idx == 0 && podSandboxStatus.GetState() == runtimeApi.PodSandBoxState_READY {
			podIP = m.determinePodSandboxIP(namespace, name, podSandboxStatus)
		}
	}

	// Get statuses of all containers visible in the pod.
	containerStatuses, err := m.getPodContainerStatuses(uid, name, namespace)
	if err != nil {
		glog.Errorf("getPodContainerStatuses for pod %q failed: %v", podFullName, err)
		return nil, err
	}

	return &kubecontainer.PodStatus{
		ID:                uid,
		Name:              name,
		Namespace:         namespace,
		IP:                podIP,
		SandboxStatuses:   sandboxStatuses,
		ContainerStatuses: containerStatuses,
	}, nil
}

示例#20
文件: prober.go 项目: Xmagicer/origin

func (pb *prober) runProbe(p *api.Probe, pod *api.Pod, status api.PodStatus, container api.Container, containerID kubecontainer.ContainerID) (probe.Result, string, error) {
	timeout := time.Duration(p.TimeoutSeconds) * time.Second
	if p.Exec != nil {
		glog.V(4).Infof("Exec-Probe Pod: %v, Container: %v, Command: %v", pod, container, p.Exec.Command)
		return pb.exec.Probe(pb.newExecInContainer(container, containerID, p.Exec.Command))
	}
	if p.HTTPGet != nil {
		scheme := strings.ToLower(string(p.HTTPGet.Scheme))
		host := p.HTTPGet.Host
		if host == "" {
			host = status.PodIP
		}
		port, err := extractPort(p.HTTPGet.Port, container)
		if err != nil {
			return probe.Unknown, "", err
		}
		path := p.HTTPGet.Path
		glog.V(4).Infof("HTTP-Probe Host: %v://%v, Port: %v, Path: %v", scheme, host, port, path)
		url := formatURL(scheme, host, port, path)
		headers := buildHeader(p.HTTPGet.HTTPHeaders)
		glog.V(4).Infof("HTTP-Probe Headers: %v", headers)
		return pb.http.Probe(url, headers, timeout)
	}
	if p.TCPSocket != nil {
		port, err := extractPort(p.TCPSocket.Port, container)
		if err != nil {
			return probe.Unknown, "", err
		}
		glog.V(4).Infof("TCP-Probe PodIP: %v, Port: %v, Timeout: %v", status.PodIP, port, timeout)
		return pb.tcp.Probe(status.PodIP, port, timeout)
	}
	glog.Warningf("Failed to find probe builder for container: %v", container)
	return probe.Unknown, "", fmt.Errorf("Missing probe handler for %s:%s", format.Pod(pod), container.Name)
}

示例#21

// If a container is still in backoff, the function will return a brief backoff error and
// a detailed error message.
func (m *kubeGenericRuntimeManager) doBackOff(pod *api.Pod, container *api.Container, podStatus *kubecontainer.PodStatus, backOff *flowcontrol.Backoff) (bool, string, error) {
	var cStatus *kubecontainer.ContainerStatus
	for _, c := range podStatus.ContainerStatuses {
		if c.Name == container.Name && c.State == kubecontainer.ContainerStateExited {
			cStatus = c
			break
		}
	}

	if cStatus == nil {
		return false, "", nil
	}

	glog.Infof("checking backoff for container %q in pod %q", container.Name, format.Pod(pod))
	// Use the finished time of the latest exited container as the start point to calculate whether to do back-off.
	ts := cStatus.FinishedAt
	// backOff requires a unique key to identify the container.
	key := getStableKey(pod, container)
	if backOff.IsInBackOffSince(key, ts) {
		if ref, err := kubecontainer.GenerateContainerRef(pod, container); err == nil {
			m.recorder.Eventf(ref, api.EventTypeWarning, events.BackOffStartContainer, "Back-off restarting failed container")
		}
		err := fmt.Errorf("Back-off %s restarting failed container=%s pod=%s", backOff.Get(key), container.Name, format.Pod(pod))
		glog.Infof("%s", err.Error())
		return true, err.Error(), kubecontainer.ErrCrashLoopBackOff
	}

	backOff.Next(key, ts)
	return false, "", nil
}

示例#22
文件: kuberuntime_sandbox.go 项目: pst/kubernetes

// createPodSandbox creates a pod sandbox and returns (podSandBoxID, message, error).
func (m *kubeGenericRuntimeManager) createPodSandbox(pod *api.Pod, attempt uint32) (string, string, error) {
	podSandboxConfig, err := m.generatePodSandboxConfig(pod, attempt)
	if err != nil {
		message := fmt.Sprintf("GeneratePodSandboxConfig for pod %q failed: %v", format.Pod(pod), err)
		glog.Error(message)
		return "", message, err
	}

	podSandBoxID, err := m.runtimeService.RunPodSandbox(podSandboxConfig)
	if err != nil {
		message := fmt.Sprintf("CreatePodSandbox for pod %q failed: %v", format.Pod(pod), err)
		glog.Error(message)
		return "", message, err
	}

	return podSandBoxID, "", nil
}

示例#23
文件: log.go 项目: alex-mohr/kubernetes

// GetContainerLogs uses rkt's GetLogs API to get the logs of the container.
// By default, it returns a snapshot of the container log. Set |follow| to true to
// stream the log. Set |follow| to false and specify the number of lines (e.g.
// "100" or "all") to tail the log.
//
// TODO(yifan): This doesn't work with lkvm stage1 yet.
func (r *Runtime) GetContainerLogs(pod *v1.Pod, containerID kubecontainer.ContainerID, logOptions *v1.PodLogOptions, stdout, stderr io.Writer) error {
	id, err := parseContainerID(containerID)
	if err != nil {
		return err
	}

	var since int64
	if logOptions.SinceSeconds != nil {
		t := metav1.Now().Add(-time.Duration(*logOptions.SinceSeconds) * time.Second)
		since = t.Unix()
	}
	if logOptions.SinceTime != nil {
		since = logOptions.SinceTime.Unix()
	}

	getLogsRequest := &rktapi.GetLogsRequest{
		PodId:     id.uuid,
		AppName:   id.appName,
		Follow:    logOptions.Follow,
		SinceTime: since,
	}

	if logOptions.TailLines != nil {
		getLogsRequest.Lines = int32(*logOptions.TailLines)
	}

	stream, err := r.apisvc.GetLogs(context.Background(), getLogsRequest)
	if err != nil {
		glog.Errorf("rkt: Failed to create log stream for pod %q: %v", format.Pod(pod), err)
		return err
	}

	for {
		log, err := stream.Recv()
		if err == io.EOF {
			break
		}
		if err != nil {
			glog.Errorf("rkt: Failed to receive log for pod %q: %v", format.Pod(pod), err)
			return err
		}
		processLines(log.Lines, logOptions, stdout, stderr)
	}

	return nil
}

示例#24
文件: runonce.go 项目: RomainVabre/origin

// runPod runs a single pod and wait until all containers are running.
func (kl *Kubelet) runPod(pod *api.Pod, retryDelay time.Duration) error {
	delay := retryDelay
	retry := 0
	for {
		status, err := kl.containerRuntime.GetPodStatus(pod.UID, pod.Name, pod.Namespace)
		if err != nil {
			return fmt.Errorf("Unable to get status for pod %q: %v", format.Pod(pod), err)
		}

		if kl.isPodRunning(pod, status) {
			glog.Infof("pod %q containers running", format.Pod(pod))
			return nil
		}
		glog.Infof("pod %q containers not running: syncing", format.Pod(pod))

		glog.Infof("Creating a mirror pod for static pod %q", format.Pod(pod))
		if err := kl.podManager.CreateMirrorPod(pod); err != nil {
			glog.Errorf("Failed creating a mirror pod %q: %v", format.Pod(pod), err)
		}
		mirrorPod, _ := kl.podManager.GetMirrorPodByPod(pod)

		if err = kl.syncPod(pod, mirrorPod, status, kubetypes.SyncPodUpdate); err != nil {
			return fmt.Errorf("error syncing pod %q: %v", format.Pod(pod), err)
		}
		if retry >= runOnceMaxRetries {
			return fmt.Errorf("timeout error: pod %q containers not running after %d retries", format.Pod(pod), runOnceMaxRetries)
		}
		// TODO(proppy): health checking would be better than waiting + checking the state at the next iteration.
		glog.Infof("pod %q containers synced, waiting for %v", format.Pod(pod), delay)
		time.Sleep(delay)
		retry++
		delay *= runOnceRetryDelayBackoff
	}
}

示例#25
文件: runonce.go 项目: RomainVabre/origin

// isPodRunning returns true if all containers of a manifest are running.
func (kl *Kubelet) isPodRunning(pod *api.Pod, status *kubecontainer.PodStatus) bool {
	for _, c := range pod.Spec.Containers {
		cs := status.FindContainerStatusByName(c.Name)
		if cs == nil || cs.State != kubecontainer.ContainerStateRunning {
			glog.Infof("Container %q for pod %q not running", c.Name, format.Pod(pod))
			return false
		}
	}
	return true
}

示例#26
文件: controller_utils.go 项目: Q-Lee/kubernetes

// deletePods will delete all pods from master running on given node, and return true
// if any pods were deleted, or were found pending deletion.
func deletePods(kubeClient clientset.Interface, recorder record.EventRecorder, nodeName, nodeUID string, daemonStore cache.StoreToDaemonSetLister) (bool, error) {
	remaining := false
	selector := fields.OneTermEqualSelector(api.PodHostField, nodeName)
	options := api.ListOptions{FieldSelector: selector}
	pods, err := kubeClient.Core().Pods(api.NamespaceAll).List(options)
	var updateErrList []error

	if err != nil {
		return remaining, err
	}

	if len(pods.Items) > 0 {
		recordNodeEvent(recorder, nodeName, nodeUID, api.EventTypeNormal, "DeletingAllPods", fmt.Sprintf("Deleting all Pods from Node %v.", nodeName))
	}

	for _, pod := range pods.Items {
		// Defensive check, also needed for tests.
		if pod.Spec.NodeName != nodeName {
			continue
		}

		// Set reason and message in the pod object.
		if _, err = setPodTerminationReason(kubeClient, &pod, nodeName); err != nil {
			if errors.IsConflict(err) {
				updateErrList = append(updateErrList,
					fmt.Errorf("update status failed for pod %q: %v", format.Pod(&pod), err))
				continue
			}
		}
		// if the pod has already been marked for deletion, we still return true that there are remaining pods.
		if pod.DeletionGracePeriodSeconds != nil {
			remaining = true
			continue
		}
		// if the pod is managed by a daemonset, ignore it
		_, err := daemonStore.GetPodDaemonSets(&pod)
		if err == nil { // No error means at least one daemonset was found
			continue
		}

		glog.V(2).Infof("Starting deletion of pod %v", pod.Name)
		recorder.Eventf(&pod, api.EventTypeNormal, "NodeControllerEviction", "Marking for deletion Pod %s from Node %s", pod.Name, nodeName)
		if err := kubeClient.Core().Pods(pod.Namespace).Delete(pod.Name, nil); err != nil {
			return false, err
		}
		remaining = true
	}

	if len(updateErrList) > 0 {
		return false, utilerrors.NewAggregate(updateErrList)
	}
	return remaining, nil
}

示例#27
文件: volume_manager.go 项目: spxtr/kubernetes

func (vm *volumeManager) WaitForAttachAndMount(pod *v1.Pod) error {
	expectedVolumes := getExpectedVolumes(pod)
	if len(expectedVolumes) == 0 {
		// No volumes to verify
		return nil
	}

	glog.V(3).Infof("Waiting for volumes to attach and mount for pod %q", format.Pod(pod))
	uniquePodName := volumehelper.GetUniquePodName(pod)

	// Some pods expect to have Setup called over and over again to update.
	// Remount plugins for which this is true. (Atomically updating volumes,
	// like Downward API, depend on this to update the contents of the volume).
	vm.desiredStateOfWorldPopulator.ReprocessPod(uniquePodName)
	vm.actualStateOfWorld.MarkRemountRequired(uniquePodName)

	err := wait.Poll(
		podAttachAndMountRetryInterval,
		podAttachAndMountTimeout,
		vm.verifyVolumesMountedFunc(uniquePodName, expectedVolumes))

	if err != nil {
		// Timeout expired
		unmountedVolumes :=
			vm.getUnmountedVolumes(uniquePodName, expectedVolumes)
		if len(unmountedVolumes) == 0 {
			return nil
		}

		return fmt.Errorf(
			"timeout expired waiting for volumes to attach/mount for pod %q/%q. list of unattached/unmounted volumes=%v",
			pod.Namespace,
			pod.Name,
			unmountedVolumes)
	}

	glog.V(3).Infof("All volumes are attached and mounted for pod %q", format.Pod(pod))
	return nil
}

示例#28
文件: manager.go 项目: fwalker/dashboard

func (m *manager) SetContainerReadiness(pod *api.Pod, containerID kubecontainer.ContainerID, ready bool) {
	m.podStatusesLock.Lock()
	defer m.podStatusesLock.Unlock()

	oldStatus, found := m.podStatuses[pod.UID]
	if !found {
		glog.Warningf("Container readiness changed before pod has synced: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}
	status := oldStatus.status

	// Find the container to update.
	containerIndex := -1
	for i, c := range status.ContainerStatuses {
		if c.ContainerID == containerID.String() {
			containerIndex = i
			break
		}
	}
	if containerIndex == -1 {
		glog.Warningf("Container readiness changed for unknown container: %q - %q",
			format.Pod(pod), containerID.String())
		return
	}

	if status.ContainerStatuses[containerIndex].Ready == ready {
		glog.V(4).Infof("Container readiness unchanged (%v): %q - %q", ready,
			format.Pod(pod), containerID.String())
		return
	}

	// Make sure we're not updating the cached version.
	status.ContainerStatuses = make([]api.ContainerStatus, len(status.ContainerStatuses))
	copy(status.ContainerStatuses, oldStatus.status.ContainerStatuses)
	status.ContainerStatuses[containerIndex].Ready = ready
	m.updateStatusInternal(pod, status)
}

示例#29
文件: runonce.go 项目: XiaoningDing/UbernetesPOC

// isPodRunning returns true if all containers of a manifest are running.
func (kl *Kubelet) isPodRunning(pod *api.Pod, runningPod container.Pod) (bool, error) {
	// TODO(random-liu): Change this to new pod status
	status, err := kl.containerRuntime.GetAPIPodStatus(pod)
	if err != nil {
		glog.Infof("Failed to get the status of pod %q: %v", format.Pod(pod), err)
		return false, err
	}
	for _, st := range status.ContainerStatuses {
		if st.State.Running == nil {
			glog.Infof("Container %q not running: %#v", st.Name, st.State)
			return false, nil
		}
	}
	return true, nil
}

示例#30
文件: kubelet_pods.go 项目: ncdc/kubernetes

// generateAPIPodStatus creates the final API pod status for a pod, given the
// internal pod status.
func (kl *Kubelet) generateAPIPodStatus(pod *api.Pod, podStatus *kubecontainer.PodStatus) api.PodStatus {
	glog.V(3).Infof("Generating status for %q", format.Pod(pod))

	// check if an internal module has requested the pod is evicted.
	for _, podSyncHandler := range kl.PodSyncHandlers {
		if result := podSyncHandler.ShouldEvict(pod); result.Evict {
			return api.PodStatus{
				Phase:   api.PodFailed,
				Reason:  result.Reason,
				Message: result.Message,
			}
		}
	}

	s := kl.convertStatusToAPIStatus(pod, podStatus)

	// Assume info is ready to process
	spec := &pod.Spec
	allStatus := append(append([]api.ContainerStatus{}, s.ContainerStatuses...), s.InitContainerStatuses...)
	s.Phase = GetPhase(spec, allStatus)
	kl.probeManager.UpdatePodStatus(pod.UID, s)
	s.Conditions = append(s.Conditions, status.GeneratePodInitializedCondition(spec, s.InitContainerStatuses, s.Phase))
	s.Conditions = append(s.Conditions, status.GeneratePodReadyCondition(spec, s.ContainerStatuses, s.Phase))
	// s (the PodStatus we are creating) will not have a PodScheduled condition yet, because converStatusToAPIStatus()
	// does not create one. If the existing PodStatus has a PodScheduled condition, then copy it into s and make sure
	// it is set to true. If the existing PodStatus does not have a PodScheduled condition, then create one that is set to true.
	if _, oldPodScheduled := api.GetPodCondition(&pod.Status, api.PodScheduled); oldPodScheduled != nil {
		s.Conditions = append(s.Conditions, *oldPodScheduled)
	}
	api.UpdatePodCondition(&pod.Status, &api.PodCondition{
		Type:   api.PodScheduled,
		Status: api.ConditionTrue,
	})

	if !kl.standaloneMode {
		hostIP, err := kl.getHostIPAnyWay()
		if err != nil {
			glog.V(4).Infof("Cannot get host IP: %v", err)
		} else {
			s.HostIP = hostIP.String()
			if podUsesHostNetwork(pod) && s.PodIP == "" {
				s.PodIP = hostIP.String()
			}
		}
	}

	return *s
}

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