// TODO(floreks): This should be transactional to make sure that DS will not be deleted without pods
// Deletes daemon set with given name in given namespace and related pods.
// Also deletes services related to daemon set if deleteServices is true.
func DeleteDaemonSet(client k8sClient.Interface, namespace, name string,
	deleteServices bool) error {

	log.Printf("Deleting %s daemon set from %s namespace", name, namespace)

	if deleteServices {
		if err := DeleteDaemonSetServices(client, namespace, name); err != nil {
			return err
		}
	}

	pods, err := getRawDaemonSetPods(client, namespace, name)
	if err != nil {
		return err
	}

	if err := client.Extensions().DaemonSets(namespace).Delete(name); err != nil {
		return err
	}

	for _, pod := range pods.Items {
		if err := client.Pods(namespace).Delete(pod.Name, &api.DeleteOptions{}); err != nil {
			return err
		}
	}

	log.Printf("Successfully deleted %s daemon set from %s namespace", name, namespace)

	return nil
}
Exemplo n.º 2
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// Returns the old RCs targetted by the given Deployment.
func GetOldRCs(deployment extensions.Deployment, c client.Interface) ([]*api.ReplicationController, error) {
	namespace := deployment.ObjectMeta.Namespace
	// 1. Find all pods whose labels match deployment.Spec.Selector
	podList, err := c.Pods(namespace).List(labels.SelectorFromSet(deployment.Spec.Selector), fields.Everything(), unversioned.ListOptions{})
	if err != nil {
		return nil, fmt.Errorf("error listing pods: %v", err)
	}
	// 2. Find the corresponding RCs for pods in podList.
	// TODO: Right now we list all RCs and then filter. We should add an API for this.
	oldRCs := map[string]api.ReplicationController{}
	rcList, err := c.ReplicationControllers(namespace).List(labels.Everything(), fields.Everything(), unversioned.ListOptions{})
	if err != nil {
		return nil, fmt.Errorf("error listing replication controllers: %v", err)
	}
	newRCTemplate := GetNewRCTemplate(deployment)
	for _, pod := range podList.Items {
		podLabelsSelector := labels.Set(pod.ObjectMeta.Labels)
		for _, rc := range rcList.Items {
			rcLabelsSelector := labels.SelectorFromSet(rc.Spec.Selector)
			if rcLabelsSelector.Matches(podLabelsSelector) {
				// Filter out RC that has the same pod template spec as the deployment - that is the new RC.
				if api.Semantic.DeepEqual(rc.Spec.Template, &newRCTemplate) {
					continue
				}
				oldRCs[rc.ObjectMeta.Name] = rc
			}
		}
	}
	requiredRCs := []*api.ReplicationController{}
	for _, value := range oldRCs {
		requiredRCs = append(requiredRCs, &value)
	}
	return requiredRCs, nil
}
Exemplo n.º 3
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func forcefullyDeletePod(c client.Interface, pod *api.Pod) {
	var zero int64
	err := c.Pods(pod.Namespace).Delete(pod.Name, &api.DeleteOptions{GracePeriodSeconds: &zero})
	if err != nil {
		util.HandleError(err)
	}
}
Exemplo n.º 4
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// NewRollingDeploymentStrategy makes a new RollingDeploymentStrategy.
func NewRollingDeploymentStrategy(namespace string, client kclient.Interface, codec runtime.Codec, initialStrategy acceptingDeploymentStrategy) *RollingDeploymentStrategy {
	return &RollingDeploymentStrategy{
		codec:           codec,
		initialStrategy: initialStrategy,
		client:          client,
		apiRetryPeriod:  DefaultApiRetryPeriod,
		apiRetryTimeout: DefaultApiRetryTimeout,
		rollingUpdate: func(config *kubectl.RollingUpdaterConfig) error {
			updater := kubectl.NewRollingUpdater(namespace, client)
			return updater.Update(config)
		},
		hookExecutor: &stratsupport.HookExecutor{
			PodClient: &stratsupport.HookExecutorPodClientImpl{
				CreatePodFunc: func(namespace string, pod *kapi.Pod) (*kapi.Pod, error) {
					return client.Pods(namespace).Create(pod)
				},
				PodWatchFunc: func(namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
					return stratsupport.NewPodWatch(client, namespace, name, resourceVersion, stopChannel)
				},
			},
		},
		getUpdateAcceptor: func(timeout time.Duration) strat.UpdateAcceptor {
			return stratsupport.NewAcceptNewlyObservedReadyPods(client, timeout, AcceptorInterval)
		},
	}
}
Exemplo n.º 5
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func New(kubeClient client.Interface, resyncPeriod controller.ResyncPeriodFunc, threshold int) *GCController {
	gcc := &GCController{
		kubeClient: kubeClient,
		threshold:  threshold,
		deletePod: func(namespace, name string) error {
			return kubeClient.Pods(namespace).Delete(name, api.NewDeleteOptions(0))
		},
	}

	terminatedSelector := fields.ParseSelectorOrDie("status.phase!=" + string(api.PodPending) + ",status.phase!=" + string(api.PodRunning) + ",status.phase!=" + string(api.PodUnknown))

	gcc.podStore.Store, gcc.podStoreSyncer = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func(options api.ListOptions) (runtime.Object, error) {
				options.FieldSelector = terminatedSelector
				return gcc.kubeClient.Pods(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options api.ListOptions) (watch.Interface, error) {
				options.FieldSelector = terminatedSelector
				return gcc.kubeClient.Pods(api.NamespaceAll).Watch(options)
			},
		},
		&api.Pod{},
		resyncPeriod(),
		framework.ResourceEventHandlerFuncs{},
	)
	return gcc
}
Exemplo n.º 6
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func New(kubeClient client.Interface, resyncPeriod controller.ResyncPeriodFunc, threshold int) *GCController {
	eventBroadcaster := record.NewBroadcaster()
	eventBroadcaster.StartLogging(glog.Infof)
	eventBroadcaster.StartRecordingToSink(kubeClient.Events(""))

	gcc := &GCController{
		kubeClient: kubeClient,
		threshold:  threshold,
		deletePod: func(namespace, name string) error {
			return kubeClient.Pods(namespace).Delete(name, api.NewDeleteOptions(0))
		},
	}

	terminatedSelector := compileTerminatedPodSelector()

	gcc.podStore.Store, gcc.podStoreSyncer = framework.NewInformer(
		&cache.ListWatch{
			ListFunc: func() (runtime.Object, error) {
				options := unversioned.ListOptions{FieldSelector: unversioned.FieldSelector{terminatedSelector}}
				return gcc.kubeClient.Pods(api.NamespaceAll).List(options)
			},
			WatchFunc: func(options unversioned.ListOptions) (watch.Interface, error) {
				options.FieldSelector.Selector = terminatedSelector
				return gcc.kubeClient.Pods(api.NamespaceAll).Watch(options)
			},
		},
		&api.Pod{},
		resyncPeriod(),
		framework.ResourceEventHandlerFuncs{},
	)
	return gcc
}
Exemplo n.º 7
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func deletePods(kubeClient client.Interface, ns string, before unversioned.Time) (int64, error) {
	items, err := kubeClient.Pods(ns).List(unversioned.ListOptions{})
	if err != nil {
		return 0, err
	}
	expired := unversioned.Now().After(before.Time)
	var deleteOptions *api.DeleteOptions
	if expired {
		deleteOptions = api.NewDeleteOptions(0)
	}
	estimate := int64(0)
	for i := range items.Items {
		if items.Items[i].Spec.TerminationGracePeriodSeconds != nil {
			grace := *items.Items[i].Spec.TerminationGracePeriodSeconds
			if grace > estimate {
				estimate = grace
			}
		}
		err := kubeClient.Pods(ns).Delete(items.Items[i].Name, deleteOptions)
		if err != nil && !errors.IsNotFound(err) {
			return 0, err
		}
	}
	if expired {
		estimate = 0
	}
	return estimate, nil
}
Exemplo n.º 8
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// GetOldRCs returns the old RCs targeted by the given Deployment; get PodList and RCList from client interface.
func GetOldRCs(deployment extensions.Deployment, c client.Interface) ([]*api.ReplicationController, error) {
	return GetOldRCsFromLists(deployment, c,
		func(namespace string, options api.ListOptions) (*api.PodList, error) {
			return c.Pods(namespace).List(options)
		},
		func(namespace string, options api.ListOptions) ([]api.ReplicationController, error) {
			rcList, err := c.ReplicationControllers(namespace).List(options)
			return rcList.Items, err
		})
}
Exemplo n.º 9
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func getPodsForRCs(c client.Interface, replicationControllers []*api.ReplicationController) ([]api.Pod, error) {
	allPods := []api.Pod{}
	for _, rc := range replicationControllers {
		podList, err := c.Pods(rc.ObjectMeta.Namespace).List(labels.SelectorFromSet(rc.Spec.Selector), fields.Everything(), unversioned.ListOptions{})
		if err != nil {
			return allPods, fmt.Errorf("error listing pods: %v", err)
		}
		allPods = append(allPods, podList.Items...)
	}
	return allPods, nil
}
Exemplo n.º 10
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func listPods(client kclient.Interface) (*kapi.PodList, error) {
	// get builds with new label
	sel, err := labels.Parse(buildapi.BuildLabel)
	if err != nil {
		return nil, err
	}
	listNew, err := client.Pods(kapi.NamespaceAll).List(kapi.ListOptions{LabelSelector: sel})
	if err != nil {
		return nil, err
	}
	return listNew, nil
}
Exemplo n.º 11
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func listPods(client kclient.Interface) (*kapi.PodList, error) {
	// get builds with new label
	sel, err := labels.Parse(buildapi.BuildLabel)
	if err != nil {
		return nil, err
	}
	listNew, err := client.Pods(kapi.NamespaceAll).List(sel, fields.Everything())
	if err != nil {
		return nil, err
	}
	return listNew, nil
}
Exemplo n.º 12
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// WaitForRegistry waits until a newly deployed registry becomes ready. If waitForDCVersion is given, the
// function will wait until a corresponding replica controller completes. If not give, the latest version of
// registry's deployment config will be fetched from etcd.
func WaitForRegistry(
	dcNamespacer client.DeploymentConfigsNamespacer,
	kubeClient kclient.Interface,
	waitForDCVersion *int64,
	oc *CLI,
) error {
	var latestVersion int64
	start := time.Now()

	if waitForDCVersion != nil {
		latestVersion = *waitForDCVersion
	} else {
		dc, err := dcNamespacer.DeploymentConfigs(kapi.NamespaceDefault).Get("docker-registry")
		if err != nil {
			return err
		}
		latestVersion = dc.Status.LatestVersion
	}
	fmt.Fprintf(g.GinkgoWriter, "waiting for deployment of version %d to complete\n", latestVersion)

	err := WaitForADeployment(kubeClient.ReplicationControllers(kapi.NamespaceDefault), "docker-registry",
		func(rc *kapi.ReplicationController) bool {
			if !CheckDeploymentCompletedFn(rc) {
				return false
			}
			v, err := strconv.ParseInt(rc.Annotations[deployapi.DeploymentVersionAnnotation], 10, 64)
			if err != nil {
				fmt.Fprintf(g.GinkgoWriter, "failed to parse %q of replication controller %q: %v\n", deployapi.DeploymentVersionAnnotation, rc.Name, err)
				return false
			}
			return v >= latestVersion
		},
		func(rc *kapi.ReplicationController) bool {
			v, err := strconv.ParseInt(rc.Annotations[deployapi.DeploymentVersionAnnotation], 10, 64)
			if err != nil {
				fmt.Fprintf(g.GinkgoWriter, "failed to parse %q of replication controller %q: %v\n", deployapi.DeploymentVersionAnnotation, rc.Name, err)
				return false
			}
			if v < latestVersion {
				return false
			}
			return CheckDeploymentFailedFn(rc)
		}, oc)
	if err != nil {
		return err
	}

	requirement, err := labels.NewRequirement(deployapi.DeploymentLabel, selection.Equals, sets.NewString(fmt.Sprintf("docker-registry-%d", latestVersion)))
	pods, err := WaitForPods(kubeClient.Pods(kapi.NamespaceDefault), labels.NewSelector().Add(*requirement), CheckPodIsReadyFn, 1, time.Minute)
	now := time.Now()
	fmt.Fprintf(g.GinkgoWriter, "deployed registry pod %s after %s\n", pods[0], now.Sub(start).String())
	return err
}
Exemplo n.º 13
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func makeNPods(c client.Interface, N int) {
	basePod := &api.Pod{
		ObjectMeta: api.ObjectMeta{
			GenerateName: "scheduler-test-pod-",
		},
		Spec: api.PodSpec{
			Containers: []api.Container{{
				Name:  "pause",
				Image: "gcr.io/google_containers/pause:1.0",
				Resources: api.ResourceRequirements{
					Limits: api.ResourceList{
						api.ResourceCPU:    resource.MustParse("100m"),
						api.ResourceMemory: resource.MustParse("500Mi"),
					},
					Requests: api.ResourceList{
						api.ResourceCPU:    resource.MustParse("100m"),
						api.ResourceMemory: resource.MustParse("500Mi"),
					},
				},
			}},
		},
	}
	wg := sync.WaitGroup{}
	threads := 30
	wg.Add(threads)
	remaining := make(chan int, N)
	go func() {
		for i := 0; i < N; i++ {
			remaining <- i
		}
		close(remaining)
	}()
	for i := 0; i < threads; i++ {
		go func() {
			defer wg.Done()
			for {
				_, ok := <-remaining
				if !ok {
					return
				}
				for {
					_, err := c.Pods("default").Create(basePod)
					if err == nil {
						break
					}
				}
			}
		}()
	}
	wg.Wait()
}
Exemplo n.º 14
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func unloadPodLabel(client kclient.Interface, application *api.Application, labelSelector labels.Selector) error {

	resourceList, _ := client.Pods(application.Namespace).List(kapi.ListOptions{LabelSelector: labelSelector, FieldSelector: fields.Everything()})
	errs := []error{}
	for _, resource := range resourceList.Items {
		if !hasItem(application.Spec.Items, api.Item{Kind: "Pod", Name: resource.Name}) {
			delete(resource.Labels, fmt.Sprintf("%s.application.%s", application.Namespace, application.Name))
			if _, err := client.Pods(application.Namespace).Update(&resource); err != nil {
				errs = append(errs, err)
			}
		}
	}

	return nil
}
Exemplo n.º 15
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// makePods will setup specified number of scheduled pods.
// Currently it goes through scheduling path and it's very slow to setup large number of pods.
// TODO: Setup pods evenly on all nodes and quickly/non-linearly.
func makePods(c client.Interface, podCount int) {
	glog.Infof("making %d pods", podCount)
	basePod := &api.Pod{
		ObjectMeta: api.ObjectMeta{
			GenerateName: "scheduler-test-pod-",
		},
		Spec: api.PodSpec{
			Containers: []api.Container{{
				Name:  "pause",
				Image: "gcr.io/google_containers/pause:1.0",
				Resources: api.ResourceRequirements{
					Limits: api.ResourceList{
						api.ResourceCPU:    resource.MustParse("100m"),
						api.ResourceMemory: resource.MustParse("500Mi"),
					},
					Requests: api.ResourceList{
						api.ResourceCPU:    resource.MustParse("100m"),
						api.ResourceMemory: resource.MustParse("500Mi"),
					},
				},
			}},
		},
	}
	threads := 30
	remaining := make(chan int, 1000)
	go func() {
		for i := 0; i < podCount; i++ {
			remaining <- i
		}
		close(remaining)
	}()
	for i := 0; i < threads; i++ {
		go func() {
			for {
				_, ok := <-remaining
				if !ok {
					return
				}
				for {
					_, err := c.Pods("default").Create(basePod)
					if err == nil {
						break
					}
				}
			}
		}()
	}
}
Exemplo n.º 16
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// GetPodDetail returns the details (PodDetail) of a named Pod from a particular
// namespace.
func GetPodDetail(client k8sClient.Interface, heapsterClient client.HeapsterClient,
	namespace, name string) (*PodDetail, error) {

	log.Printf("Getting details of %s pod in %s namespace", name, namespace)

	channels := &common.ResourceChannels{
		ConfigMapList: common.GetConfigMapListChannel(client, common.NewSameNamespaceQuery(namespace), 1),
		PodMetrics:    common.GetPodMetricsChannel(heapsterClient, name, namespace),
	}

	pod, err := client.Pods(namespace).Get(name)

	if err != nil {
		return nil, err
	}

	// Download metrics
	_, metricPromises := dataselect.GenericDataSelectWithMetrics(toCells([]api.Pod{*pod}),
		dataselect.StdMetricsDataSelect, dataselect.NoResourceCache, &heapsterClient)
	metrics, _ := metricPromises.GetMetrics()

	if err = <-channels.ConfigMapList.Error; err != nil {
		return nil, err
	}
	configMapList := <-channels.ConfigMapList.List

	podDetail := toPodDetail(pod, metrics, configMapList)
	return &podDetail, nil
}
// Returns structure containing DaemonSet and Pods for the given daemon set.
func getRawDaemonSetWithPods(client client.Interface, namespace, name string) (
	*DaemonSetWithPods, error) {
	daemonSet, err := client.Extensions().DaemonSets(namespace).Get(name)
	if err != nil {
		return nil, err
	}

	labelSelector, err := unversioned.LabelSelectorAsSelector(daemonSet.Spec.Selector)
	if err != nil {
		return nil, err
	}

	pods, err := client.Pods(namespace).List(
		api.ListOptions{
			LabelSelector: labelSelector,
			FieldSelector: fields.Everything(),
		})

	if err != nil {
		return nil, err
	}

	daemonSetAndPods := &DaemonSetWithPods{
		DaemonSet: daemonSet,
		Pods:      pods,
	}
	return daemonSetAndPods, nil
}
// TODO(floreks): This should be transactional to make sure that RC will not be deleted without pods
// Deletes replication controller with given name in given namespace and related pods.
// Also deletes services related to replication controller if deleteServices is true.
func DeleteReplicationController(client client.Interface, namespace, name string,
	deleteServices bool) error {

	log.Printf("Deleting %s replication controller from %s namespace", name, namespace)

	if deleteServices {
		if err := DeleteReplicationControllerServices(client, namespace, name); err != nil {
			return err
		}
	}

	pods, err := getRawReplicationControllerPods(client, namespace, name)
	if err != nil {
		return err
	}

	if err := client.ReplicationControllers(namespace).Delete(name); err != nil {
		return err
	}

	for _, pod := range pods.Items {
		if err := client.Pods(namespace).Delete(pod.Name, &api.DeleteOptions{}); err != nil {
			return err
		}
	}

	log.Printf("Successfully deleted %s replication controller from %s namespace", name, namespace)

	return nil
}
Exemplo n.º 19
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// NewHookExecutor makes a HookExecutor from a client.
func NewHookExecutor(client kclient.Interface, podLogDestination io.Writer, decoder runtime.Decoder) *HookExecutor {
	return &HookExecutor{
		podClient: &HookExecutorPodClientImpl{
			CreatePodFunc: func(namespace string, pod *kapi.Pod) (*kapi.Pod, error) {
				return client.Pods(namespace).Create(pod)
			},
			PodWatchFunc: func(namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
				return NewPodWatch(client, namespace, name, resourceVersion, stopChannel)
			},
		},
		podLogStream: func(namespace, name string, opts *kapi.PodLogOptions) (io.ReadCloser, error) {
			return client.Pods(namespace).GetLogs(name, opts).Stream()
		},
		podLogDestination: podLogDestination,
		decoder:           decoder,
	}
}
func desiredPodsAreReady(c unversioned.Interface, rc *api.ReplicationController, settleDuration time.Duration) wait.ConditionFunc {
	return func() (done bool, err error) {
		selector := labels.Set(rc.Spec.Selector).AsSelector()
		options := api.ListOptions{LabelSelector: selector}
		pods, err := c.Pods(rc.Namespace).List(options)
		if err != nil {
			return false, err
		}

		var ready = 0
		var nonReady = 0

		for _, pod := range pods.Items {
			if !api.IsPodReady(&pod) {
				nonReady++
				continue
			}
			if len(pod.Status.ContainerStatuses) == 0 {
				continue
			}

			now := time.Now()
			var readyContainers = 0
			for _, c := range pod.Status.ContainerStatuses {
				if !c.Ready {
					continue
				}
				if c.State.Running == nil {
					continue
				}
				if c.State.Running.StartedAt.After(now.Add(-settleDuration)) {
					continue
				}
				readyContainers++
			}
			if readyContainers != len(pod.Spec.Containers) {
				continue
			}

			ready++
		}

		return ready == rc.Spec.Replicas && nonReady == 0, nil
	}
}
Exemplo n.º 21
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// NewPodWatch creates a pod watching function which is backed by a
// FIFO/reflector pair. This avoids managing watches directly.
// A stop channel to close the watch's reflector is also returned.
// It is the caller's responsibility to defer closing the stop channel to prevent leaking resources.
func NewPodWatch(client kclient.Interface, namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
	fieldSelector := fields.OneTermEqualSelector("metadata.name", name)
	podLW := &deployutil.ListWatcherImpl{
		ListFunc: func() (runtime.Object, error) {
			return client.Pods(namespace).List(labels.Everything(), fieldSelector)
		},
		WatchFunc: func(resourceVersion string) (watch.Interface, error) {
			return client.Pods(namespace).Watch(labels.Everything(), fieldSelector, resourceVersion)
		},
	}

	queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(podLW, &kapi.Pod{}, queue, 1*time.Minute).RunUntil(stopChannel)

	return func() *kapi.Pod {
		obj := queue.Pop()
		return obj.(*kapi.Pod)
	}
}
Exemplo n.º 22
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func getPodStatusForDeployment(deployment *kapi.ReplicationController, kubeClient kclient.Interface) (running, waiting, succeeded, failed int, err error) {
	rcPods, err := kubeClient.Pods(deployment.Namespace).List(kapi.ListOptions{LabelSelector: labels.Set(deployment.Spec.Selector).AsSelector()})
	if err != nil {
		return
	}
	for _, pod := range rcPods.Items {
		switch pod.Status.Phase {
		case kapi.PodRunning:
			running++
		case kapi.PodPending:
			waiting++
		case kapi.PodSucceeded:
			succeeded++
		case kapi.PodFailed:
			failed++
		}
	}
	return
}
Exemplo n.º 23
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// SyncAllPodsWithStore lists all pods and inserts them into the given store.
// Though this function is written in a generic manner, it is only used by the
// controllers for a specific purpose, to synchronously populate the store
// with the first batch of pods that would otherwise be sent by the Informer.
// Doing this avoids more complicated forms of synchronization with the
// Informer, though it also means that the controller calling this function
// will receive "OnUpdate" events for all the pods in the store, instead of
// "OnAdd". This should be ok, since most controllers are level triggered
// and make decisions based on the contents of the store.
//
// TODO: Extend this logic to load arbitrary local state for the controllers
// instead of just pods.
func SyncAllPodsWithStore(kubeClient client.Interface, store cache.Store) {
	var allPods *api.PodList
	var err error
	listOptions := api.ListOptions{LabelSelector: labels.Everything(), FieldSelector: fields.Everything()}
	for {
		if allPods, err = kubeClient.Pods(api.NamespaceAll).List(listOptions); err != nil {
			glog.Warningf("Retrying pod list: %v", err)
			continue
		}
		break
	}
	pods := []interface{}{}
	for i := range allPods.Items {
		p := allPods.Items[i]
		glog.V(4).Infof("Initializing store with pod %v/%v", p.Namespace, p.Name)
		pods = append(pods, &p)
	}
	store.Replace(pods, allPods.ResourceVersion)
	return
}
Exemplo n.º 24
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// NewPodWatch creates a pod watching function which is backed by a
// FIFO/reflector pair. This avoids managing watches directly.
// A stop channel to close the watch's reflector is also returned.
// It is the caller's responsibility to defer closing the stop channel to prevent leaking resources.
func NewPodWatch(client kclient.Interface, namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
	fieldSelector := fields.OneTermEqualSelector("metadata.name", name)
	podLW := &cache.ListWatch{
		ListFunc: func(options kapi.ListOptions) (runtime.Object, error) {
			opts := kapi.ListOptions{FieldSelector: fieldSelector}
			return client.Pods(namespace).List(opts)
		},
		WatchFunc: func(options kapi.ListOptions) (watch.Interface, error) {
			opts := kapi.ListOptions{FieldSelector: fieldSelector, ResourceVersion: options.ResourceVersion}
			return client.Pods(namespace).Watch(opts)
		},
	}

	queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
	cache.NewReflector(podLW, &kapi.Pod{}, queue, 1*time.Minute).RunUntil(stopChannel)

	return func() *kapi.Pod {
		obj := queue.Pop()
		return obj.(*kapi.Pod)
	}
}
Exemplo n.º 25
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// Returns the old RCs targetted by the given Deployment.
func GetOldRCs(deployment extensions.Deployment, c client.Interface) ([]*api.ReplicationController, error) {
	namespace := deployment.ObjectMeta.Namespace
	// 1. Find all pods whose labels match deployment.Spec.Selector
	selector := labels.SelectorFromSet(deployment.Spec.Selector)
	options := unversioned.ListOptions{LabelSelector: unversioned.LabelSelector{selector}}
	podList, err := c.Pods(namespace).List(options)
	if err != nil {
		return nil, fmt.Errorf("error listing pods: %v", err)
	}
	// 2. Find the corresponding RCs for pods in podList.
	// TODO: Right now we list all RCs and then filter. We should add an API for this.
	oldRCs := map[string]api.ReplicationController{}
	rcList, err := c.ReplicationControllers(namespace).List(unversioned.ListOptions{})
	if err != nil {
		return nil, fmt.Errorf("error listing replication controllers: %v", err)
	}
	newRCTemplate := GetNewRCTemplate(deployment)
	for _, pod := range podList.Items {
		podLabelsSelector := labels.Set(pod.ObjectMeta.Labels)
		for _, rc := range rcList.Items {
			rcLabelsSelector := labels.SelectorFromSet(rc.Spec.Selector)
			if rcLabelsSelector.Matches(podLabelsSelector) {
				// Filter out RC that has the same pod template spec as the deployment - that is the new RC.
				if api.Semantic.DeepEqual(rc.Spec.Template, &newRCTemplate) {
					continue
				}
				oldRCs[rc.ObjectMeta.Name] = rc
			}
		}
	}
	requiredRCs := []*api.ReplicationController{}
	// Note that go reuses the same memory location for every iteration,
	// which means the 'value' returned from range will have the same address.
	// Therefore, we should use the returned 'index' instead.
	for i := range oldRCs {
		value := oldRCs[i]
		requiredRCs = append(requiredRCs, &value)
	}
	return requiredRCs, nil
}
Exemplo n.º 26
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// NewRecreateDeploymentStrategy makes a RecreateDeploymentStrategy backed by
// a real HookExecutor and client.
func NewRecreateDeploymentStrategy(client kclient.Interface, codec runtime.Codec) *RecreateDeploymentStrategy {
	scaler, _ := kubectl.ScalerFor("ReplicationController", client)
	return &RecreateDeploymentStrategy{
		getReplicationController: func(namespace, name string) (*kapi.ReplicationController, error) {
			return client.ReplicationControllers(namespace).Get(name)
		},
		scaler: scaler,
		codec:  codec,
		hookExecutor: &stratsupport.HookExecutor{
			PodClient: &stratsupport.HookExecutorPodClientImpl{
				CreatePodFunc: func(namespace string, pod *kapi.Pod) (*kapi.Pod, error) {
					return client.Pods(namespace).Create(pod)
				},
				PodWatchFunc: func(namespace, name, resourceVersion string, stopChannel chan struct{}) func() *kapi.Pod {
					return stratsupport.NewPodWatch(client, namespace, name, resourceVersion, stopChannel)
				},
			},
		},
		retryTimeout: 120 * time.Second,
		retryPeriod:  1 * time.Second,
	}
}
Exemplo n.º 27
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func getNodePods(client k8sClient.Interface, node api.Node) (*api.PodList, error) {
	fieldSelector, err := fields.ParseSelector("spec.nodeName=" + node.Name +
		",status.phase!=" + string(api.PodSucceeded) +
		",status.phase!=" + string(api.PodFailed))

	if err != nil {
		return nil, err
	}

	return client.Pods(api.NamespaceAll).List(api.ListOptions{
		FieldSelector: fieldSelector,
	})
}
Exemplo n.º 28
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// NewAcceptNewlyObservedReadyPods makes a new AcceptNewlyObservedReadyPods
// from a real client.
func NewAcceptNewlyObservedReadyPods(kclient kclient.Interface, timeout time.Duration, interval time.Duration) *AcceptNewlyObservedReadyPods {
	return &AcceptNewlyObservedReadyPods{
		timeout:      timeout,
		interval:     interval,
		acceptedPods: sets.NewString(),
		getDeploymentPodStore: func(deployment *kapi.ReplicationController) (cache.Store, chan struct{}) {
			selector := labels.Set(deployment.Spec.Selector).AsSelector()
			store := cache.NewStore(cache.MetaNamespaceKeyFunc)
			lw := &deployutil.ListWatcherImpl{
				ListFunc: func() (runtime.Object, error) {
					return kclient.Pods(deployment.Namespace).List(selector, fields.Everything())
				},
				WatchFunc: func(resourceVersion string) (watch.Interface, error) {
					return kclient.Pods(deployment.Namespace).Watch(selector, fields.Everything(), resourceVersion)
				},
			}
			stop := make(chan struct{})
			cache.NewReflector(lw, &kapi.Pod{}, store, 10*time.Second).RunUntil(stop)
			return store, stop
		},
	}
}
Exemplo n.º 29
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func listPods(client kclient.Interface) (*kapi.PodList, error) {
	// get builds with new label
	sel, err := labels.Parse(buildapi.BuildLabel)
	if err != nil {
		return nil, err
	}
	listNew, err := client.Pods(kapi.NamespaceAll).List(sel, fields.Everything())
	if err != nil {
		return nil, err
	}
	// FIXME: get builds with old label - remove this when depracated label will be removed
	selOld, err := labels.Parse(buildapi.DeprecatedBuildLabel)
	if err != nil {
		return nil, err
	}
	listOld, err := client.Pods(kapi.NamespaceAll).List(selOld, fields.Everything())
	if err != nil {
		return nil, err
	}
	listNew.Items = mergeWithoutDuplicates(listNew.Items, listOld.Items)
	return listNew, nil
}
Exemplo n.º 30
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// GetFirstPod returns a pod matching the namespace and label selector
// and the number of all pods that match the label selector.
func GetFirstPod(client client.Interface, namespace string, selector labels.Selector, timeout time.Duration, sortBy func([]*api.Pod) sort.Interface) (*api.Pod, int, error) {
	options := api.ListOptions{LabelSelector: selector}

	podList, err := client.Pods(namespace).List(options)
	if err != nil {
		return nil, 0, err
	}
	pods := []*api.Pod{}
	for i := range podList.Items {
		pod := podList.Items[i]
		pods = append(pods, &pod)
	}
	if len(pods) > 0 {
		sort.Sort(sortBy(pods))
		return pods[0], len(podList.Items), nil
	}

	// Watch until we observe a pod
	options.ResourceVersion = podList.ResourceVersion
	w, err := client.Pods(namespace).Watch(options)
	if err != nil {
		return nil, 0, err
	}
	defer w.Stop()

	condition := func(event watch.Event) (bool, error) {
		return event.Type == watch.Added || event.Type == watch.Modified, nil
	}
	event, err := watch.Until(timeout, w, condition)
	if err != nil {
		return nil, 0, err
	}
	pod, ok := event.Object.(*api.Pod)
	if !ok {
		return nil, 0, fmt.Errorf("%#v is not a pod event", event)
	}
	return pod, 1, nil
}