Golang release_1_2.FromUnversionedClient函数代码示例

func main() {
	runtime.GOMAXPROCS(runtime.NumCPU())

	config := HollowNodeConfig{}
	config.addFlags(pflag.CommandLine)
	util.InitFlags()

	if !knownMorphs.Has(config.Morph) {
		glog.Fatal("Unknown morph: %v. Allowed values: %v", config.Morph, knownMorphs.List())
	}

	// create a client to communicate with API server.
	cl, err := createClientFromFile(config.KubeconfigPath)
	clientset := clientset.FromUnversionedClient(cl)
	if err != nil {
		glog.Fatal("Failed to create a Client. Exiting.")
	}

	if config.Morph == "kubelet" {
		cadvisorInterface := new(cadvisor.Fake)
		containerManager := cm.NewStubContainerManager()

		fakeDockerClient := dockertools.NewFakeDockerClient()
		fakeDockerClient.VersionInfo = docker.Env{"Version=1.1.3", "ApiVersion=1.18"}
		fakeDockerClient.EnableSleep = true

		hollowKubelet := kubemark.NewHollowKubelet(
			config.NodeName,
			clientset,
			cadvisorInterface,
			fakeDockerClient,
			config.KubeletPort,
			config.KubeletReadOnlyPort,
			containerManager,
		)
		hollowKubelet.Run()
	}

	if config.Morph == "proxy" {
		eventBroadcaster := record.NewBroadcaster()
		recorder := eventBroadcaster.NewRecorder(api.EventSource{Component: "kube-proxy", Host: config.NodeName})

		iptInterface := fakeiptables.NewFake()

		serviceConfig := proxyconfig.NewServiceConfig()
		serviceConfig.RegisterHandler(&kubemark.FakeProxyHandler{})

		endpointsConfig := proxyconfig.NewEndpointsConfig()
		endpointsConfig.RegisterHandler(&kubemark.FakeProxyHandler{})

		hollowProxy := kubemark.NewHollowProxyOrDie(config.NodeName, cl, endpointsConfig, serviceConfig, iptInterface, eventBroadcaster, recorder)
		hollowProxy.Run()
	}
}

// beforeEach gets a client and makes a namespace.
func (f *Framework) beforeEach() {
	// The fact that we need this feels like a bug in ginkgo.
	// https://github.com/onsi/ginkgo/issues/222
	f.cleanupHandle = AddCleanupAction(f.afterEach)

	By("Creating a kubernetes client")
	config, err := loadConfig()
	Expect(err).NotTo(HaveOccurred())
	config.QPS = f.options.clientQPS
	config.Burst = f.options.clientBurst
	c, err := loadClientFromConfig(config)
	Expect(err).NotTo(HaveOccurred())

	f.Client = c
	f.Clientset_1_2 = release_1_2.FromUnversionedClient(c)

	By("Building a namespace api object")
	namespace, err := f.CreateNamespace(f.BaseName, map[string]string{
		"e2e-framework": f.BaseName,
	})
	Expect(err).NotTo(HaveOccurred())

	f.Namespace = namespace

	if testContext.VerifyServiceAccount {
		By("Waiting for a default service account to be provisioned in namespace")
		err = waitForDefaultServiceAccountInNamespace(c, namespace.Name)
		Expect(err).NotTo(HaveOccurred())
	} else {
		Logf("Skipping waiting for service account")
	}

	if testContext.GatherKubeSystemResourceUsageData {
		f.gatherer, err = NewResourceUsageGatherer(c)
		if err != nil {
			Logf("Error while creating NewResourceUsageGatherer: %v", err)
		} else {
			go f.gatherer.startGatheringData()
		}
	}

	if testContext.GatherLogsSizes {
		f.logsSizeWaitGroup = sync.WaitGroup{}
		f.logsSizeWaitGroup.Add(1)
		f.logsSizeCloseChannel = make(chan bool)
		f.logsSizeVerifier = NewLogsVerifier(c, f.logsSizeCloseChannel)
		go func() {
			f.logsSizeVerifier.Run()
			f.logsSizeWaitGroup.Done()
		}()
	}
}

func testRollingUpdateDeployment(f *Framework) {
	ns := f.Namespace.Name
	// TODO: remove unversionedClient when the refactoring is done. Currently some
	// functions like verifyPod still expects a unversioned#Client.
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "sample-pod"}
	rcPodLabels := map[string]string{
		"name": "sample-pod",
		"pod":  "nginx",
	}

	rcName := "nginx-controller"
	replicas := 3
	_, err := c.Legacy().ReplicationControllers(ns).Create(newRC(rcName, replicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.Legacy().ReplicationControllers(ns).Delete(rcName, nil)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "sample-pod", false, 3)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}

	// Create a deployment to delete nginx pods and instead bring up redis pods.
	deploymentName := "redis-deployment"
	Logf("Creating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Create(newDeployment(deploymentName, replicas, deploymentPodLabels, "redis", "redis", extensions.RollingUpdateDeploymentStrategyType, nil))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentStatus(c, ns, deploymentName, replicas, replicas-1, replicas+1, 0)
	Expect(err).NotTo(HaveOccurred())

	// Check if it's updated to revision 1 correctly
	checkDeploymentRevision(c, ns, deploymentName, "1", "redis", "redis")
}

func testNewDeployment(f *Framework) {
	ns := f.Namespace.Name
	// TODO: remove unversionedClient when the refactoring is done. Currently some
	// functions like verifyPod still expects a unversioned#Client.
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(f.Client)

	deploymentName := "nginx-deployment"
	podLabels := map[string]string{"name": "nginx"}
	replicas := 1
	Logf("Creating simple deployment %s", deploymentName)
	d := newDeployment(deploymentName, replicas, podLabels, "nginx", "nginx", extensions.RollingUpdateDeploymentStrategyType, nil)
	d.Annotations = map[string]string{"test": "should-copy-to-RC", kubectl.LastAppliedConfigAnnotation: "should-not-copy-to-RC"}
	_, err := c.Extensions().Deployments(ns).Create(d)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Core().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
	}()
	// Check that deployment is created fine.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "nginx", false, replicas)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}
	// DeploymentStatus should be appropriately updated.
	deployment, err = c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	Expect(deployment.Status.Replicas).Should(Equal(replicas))
	Expect(deployment.Status.UpdatedReplicas).Should(Equal(replicas))

	// Check if it's updated to revision 1 correctly
	_, newRC := checkDeploymentRevision(c, ns, deploymentName, "1", "nginx", "nginx")
	// Check other annotations
	Expect(newRC.Annotations["test"]).Should(Equal("should-copy-to-RC"))
	Expect(newRC.Annotations[kubectl.LastAppliedConfigAnnotation]).Should(Equal(""))
	Expect(deployment.Annotations["test"]).Should(Equal("should-copy-to-RC"))
	Expect(deployment.Annotations[kubectl.LastAppliedConfigAnnotation]).Should(Equal("should-not-copy-to-RC"))
}

// testDeploymentCleanUpPolicy tests that deployment supports cleanup policy
func testDeploymentCleanUpPolicy(f *Framework) {
	ns := f.Namespace.Name
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "cleanup-pod"}
	rcPodLabels := map[string]string{
		"name": "cleanup-pod",
		"pod":  "nginx",
	}
	rcName := "nginx-controller"
	replicas := 1
	revisionHistoryLimit := new(int)
	*revisionHistoryLimit = 0
	_, err := c.Legacy().ReplicationControllers(ns).Create(newRC(rcName, replicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "cleanup-pod", false, 1)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}

	// Create a deployment to delete nginx pods and instead bring up redis pods.
	deploymentName := "redis-deployment"
	Logf("Creating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Create(newDeployment(deploymentName, replicas, deploymentPodLabels, "redis", "redis", extensions.RollingUpdateDeploymentStrategyType, revisionHistoryLimit))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentOldRCsNum(c, ns, deploymentName, *revisionHistoryLimit)
	Expect(err).NotTo(HaveOccurred())
}

// beforeEach gets a client and makes a namespace.
func (f *Framework) beforeEach() {
	By("Creating a kubernetes client")
	c, err := loadClient()
	Expect(err).NotTo(HaveOccurred())

	f.Client = c
	f.Clientset_1_2 = release_1_2.FromUnversionedClient(c)

	By("Building a namespace api object")
	namespace, err := f.nsCreateFunc(f.BaseName, f.Client, map[string]string{
		"e2e-framework": f.BaseName,
	})
	Expect(err).NotTo(HaveOccurred())

	f.Namespace = namespace

	if testContext.VerifyServiceAccount {
		By("Waiting for a default service account to be provisioned in namespace")
		err = waitForDefaultServiceAccountInNamespace(c, namespace.Name)
		Expect(err).NotTo(HaveOccurred())
	} else {
		Logf("Skipping waiting for service account")
	}

	if testContext.GatherKubeSystemResourceUsageData {
		f.gatherer.startGatheringData(c, resourceDataGatheringPeriodSeconds*time.Second)
	}

	if testContext.GatherLogsSizes {
		f.logsSizeWaitGroup = sync.WaitGroup{}
		f.logsSizeWaitGroup.Add(1)
		f.logsSizeCloseChannel = make(chan bool)
		f.logsSizeVerifier = NewLogsVerifier(c, f.logsSizeCloseChannel)
		go func() {
			f.logsSizeVerifier.Run()
			f.logsSizeWaitGroup.Done()
		}()
	}
}

// testRollbackDeploymentRCNoRevision tests that deployment supports rollback even when there's old RC without revision.
// An old RC without revision is created, and then a deployment is created (v1). The deployment shouldn't add revision
// annotation to the old RC. Then rollback the deployment to last revision, and it should fail and emit related event.
// Then update the deployment to v2 and rollback it to v1 should succeed and emit related event, now the deployment
// becomes v3. Then rollback the deployment to v10 (doesn't exist in history) should fail and emit related event.
// Finally, rollback the deployment (v3) to v3 should be no-op and emit related event.
func testRollbackDeploymentRCNoRevision(f *Framework) {
	ns := f.Namespace.Name
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(f.Client)
	podName := "nginx"
	deploymentPodLabels := map[string]string{"name": podName}
	rcPodLabels := map[string]string{
		"name": podName,
		"pod":  "nginx",
	}

	rcName := "nginx-controller"
	rcReplicas := 0
	rc := newRC(rcName, rcReplicas, rcPodLabels, "nginx", "nginx")
	rc.Annotations = make(map[string]string)
	rc.Annotations["make"] = "difference"
	_, err := c.Legacy().ReplicationControllers(ns).Create(rc)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.Legacy().ReplicationControllers(ns).Delete(rcName, nil)).NotTo(HaveOccurred())
	}()

	// Create a deployment to create nginx pods, which have different template than the rc created above.
	deploymentName, deploymentImageName := "nginx-deployment", "nginx"
	deploymentReplicas := 1
	deploymentImage := "nginx"
	deploymentStrategyType := extensions.RollingUpdateDeploymentStrategyType
	Logf("Creating deployment %s", deploymentName)
	d := newDeployment(deploymentName, deploymentReplicas, deploymentPodLabels, deploymentImageName, deploymentImage, deploymentStrategyType, nil)
	_, err = c.Extensions().Deployments(ns).Create(d)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
		oldRCs, _, err := deploymentutil.GetOldRCs(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		for _, oldRC := range oldRCs {
			Expect(c.Legacy().ReplicationControllers(ns).Delete(oldRC.Name, nil)).NotTo(HaveOccurred())
		}
	}()
	// Check that deployment is created fine.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "nginx", false, deploymentReplicas)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}
	deployment, err = c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	// DeploymentStatus should be appropriately updated.
	Expect(deployment.Status.Replicas).Should(Equal(deploymentReplicas))
	Expect(deployment.Status.UpdatedReplicas).Should(Equal(deploymentReplicas))

	// Check if it's updated to revision 1 correctly
	checkDeploymentRevision(c, ns, deploymentName, "1", deploymentImageName, deploymentImage)

	// Check that the rc we created still doesn't contain revision information
	rc, err = c.Legacy().ReplicationControllers(ns).Get(rcName)
	Expect(rc.Annotations[deploymentutil.RevisionAnnotation]).Should(Equal(""))

	// Update the deploymentRollback to rollback to last revision
	// Since there's only 1 revision in history, it should stay as revision 1
	revision := int64(0)
	Logf("rolling back deployment %s to last revision", deploymentName)
	rollback := newDeploymentRollback(deploymentName, nil, revision)
	err = c.Extensions().Deployments(ns).Rollback(rollback)
	Expect(err).NotTo(HaveOccurred())

	// There should be revision not found event since there's no last revision
	waitForEvents(unversionedClient, ns, deployment, 2)
	events, err := c.Events(ns).Search(deployment)
	Expect(err).NotTo(HaveOccurred())
	Expect(events.Items[1].Reason).Should(Equal(deploymentutil.RollbackRevisionNotFound))

	// Check if it's still revision 1
	checkDeploymentRevision(c, ns, deploymentName, "1", deploymentImageName, deploymentImage)

	// Update the deployment to create redis pods.
	updatedDeploymentImage := "redis"
	updatedDeploymentImageName := "redis"
	d.Spec.Template.Spec.Containers[0].Name = updatedDeploymentImageName
	d.Spec.Template.Spec.Containers[0].Image = updatedDeploymentImage
	Logf("updating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Update(d)
//.........这里部分代码省略.........

// testRollbackDeployment tests that a deployment is created (revision 1) and updated (revision 2), and
// then rollback to revision 1 (should update template to revision 1, and then update revision 1 to 3),
// and then rollback to last revision.
func testRollbackDeployment(f *Framework) {
	ns := f.Namespace.Name
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	podName := "nginx"
	deploymentPodLabels := map[string]string{"name": podName}

	// Create a deployment to create nginx pods.
	deploymentName, deploymentImageName := "nginx-deployment", "nginx"
	deploymentReplicas := 1
	deploymentImage := "nginx"
	deploymentStrategyType := extensions.RollingUpdateDeploymentStrategyType
	Logf("Creating deployment %s", deploymentName)
	d := newDeployment(deploymentName, deploymentReplicas, deploymentPodLabels, deploymentImageName, deploymentImage, deploymentStrategyType, nil)
	_, err := c.Extensions().Deployments(ns).Create(d)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
		oldRCs, _, err := deploymentutil.GetOldRCs(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		for _, oldRC := range oldRCs {
			Expect(c.Legacy().ReplicationControllers(ns).Delete(oldRC.Name, nil)).NotTo(HaveOccurred())
		}
	}()
	// Check that deployment is created fine.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "nginx", false, deploymentReplicas)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}
	deployment, err = c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	// DeploymentStatus should be appropriately updated.
	Expect(deployment.Status.Replicas).Should(Equal(deploymentReplicas))
	Expect(deployment.Status.UpdatedReplicas).Should(Equal(deploymentReplicas))

	// Check if it's updated to revision 1 correctly
	checkDeploymentRevision(c, ns, deploymentName, "1", deploymentImageName, deploymentImage)

	// Update the deployment to create redis pods.
	updatedDeploymentImage := "redis"
	updatedDeploymentImageName := "redis"
	d.Spec.Template.Spec.Containers[0].Name = updatedDeploymentImageName
	d.Spec.Template.Spec.Containers[0].Image = updatedDeploymentImage
	Logf("updating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Update(d)
	Expect(err).NotTo(HaveOccurred())

	err = waitForDeploymentStatus(c, ns, deploymentName, deploymentReplicas, deploymentReplicas-1, deploymentReplicas+1, 0)
	Expect(err).NotTo(HaveOccurred())

	// Check if it's updated to revision 2 correctly
	checkDeploymentRevision(c, ns, deploymentName, "2", updatedDeploymentImageName, updatedDeploymentImage)

	// Update the deploymentRollback to rollback to revision 1
	revision := int64(1)
	Logf("rolling back deployment %s to revision %d", deploymentName, revision)
	rollback := newDeploymentRollback(deploymentName, nil, revision)
	err = c.Extensions().Deployments(ns).Rollback(rollback)
	Expect(err).NotTo(HaveOccurred())

	err = waitForDeploymentStatus(c, ns, deploymentName, deploymentReplicas, deploymentReplicas-1, deploymentReplicas+1, 0)
	Expect(err).NotTo(HaveOccurred())

	// Check if it's updated to revision 3 correctly
	checkDeploymentRevision(c, ns, deploymentName, "3", deploymentImageName, deploymentImage)

	// Update the deploymentRollback to rollback to last revision
	revision = 0
	Logf("rolling back deployment %s to last revision", deploymentName)
	rollback = newDeploymentRollback(deploymentName, nil, revision)
	err = c.Extensions().Deployments(ns).Rollback(rollback)
	Expect(err).NotTo(HaveOccurred())

	err = waitForDeploymentStatus(c, ns, deploymentName, deploymentReplicas, deploymentReplicas-1, deploymentReplicas+1, 0)
	Expect(err).NotTo(HaveOccurred())

	// Check if it's updated to revision 4 correctly
	checkDeploymentRevision(c, ns, deploymentName, "4", updatedDeploymentImageName, updatedDeploymentImage)
}

func testPausedDeployment(f *Framework) {
	ns := f.Namespace.Name
	// TODO: remove unversionedClient when the refactoring is done. Currently some
	// functions like verifyPod still expects a unversioned#Client.
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	deploymentName := "nginx"
	podLabels := map[string]string{"name": "nginx"}
	d := newDeployment(deploymentName, 1, podLabels, "nginx", "nginx", extensions.RollingUpdateDeploymentStrategyType, nil)
	d.Spec.Paused = true
	Logf("Creating paused deployment %s", deploymentName)
	_, err := c.Extensions().Deployments(ns).Create(d)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		_, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
	}()
	// Check that deployment is created fine.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that there is no latest state realized for the new deployment.
	rc, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	if rc != nil {
		err = fmt.Errorf("unexpected new rc/%s for deployment/%s", rc.Name, deployment.Name)
		Expect(err).NotTo(HaveOccurred())
	}

	// Update the deployment to run
	deployment.Spec.Paused = false
	deployment, err = c.Extensions().Deployments(ns).Update(deployment)
	Expect(err).NotTo(HaveOccurred())

	opts := api.ListOptions{LabelSelector: labels.Set(deployment.Spec.Selector).AsSelector()}
	w, err := c.Legacy().ReplicationControllers(ns).Watch(opts)
	Expect(err).NotTo(HaveOccurred())

	select {
	case <-w.ResultChan():
		// this is it
	case <-time.After(time.Minute):
		err = fmt.Errorf("expected a new rc to be created")
		Expect(err).NotTo(HaveOccurred())
	}

	// Pause the deployment and delete the replication controller.
	// The paused deployment shouldn't recreate a new one.
	deployment.Spec.Paused = true
	deployment.ResourceVersion = ""
	deployment, err = c.Extensions().Deployments(ns).Update(deployment)
	Expect(err).NotTo(HaveOccurred())

	newRC, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())

	deployment, err = c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	if !deployment.Spec.Paused {
		err = fmt.Errorf("deployment %q should be paused", deployment.Name)
		Expect(err).NotTo(HaveOccurred())
	}
	shouldBeNil, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	if shouldBeNil != nil {
		err = fmt.Errorf("deployment %q shouldn't have a rc but there is %q", deployment.Name, shouldBeNil.Name)
		Expect(err).NotTo(HaveOccurred())
	}
}

// testRolloverDeployment tests that deployment supports rollover.
// i.e. we can change desired state and kick off rolling update, then change desired state again before it finishes.
func testRolloverDeployment(f *Framework) {
	ns := f.Namespace.Name
	// TODO: remove unversionedClient when the refactoring is done. Currently some
	// functions like verifyPod still expects a unversioned#Client.
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	podName := "rollover-pod"
	deploymentPodLabels := map[string]string{"name": podName}
	rcPodLabels := map[string]string{
		"name": podName,
		"pod":  "nginx",
	}

	rcName := "nginx-controller"
	rcReplicas := 4
	_, err := c.Legacy().ReplicationControllers(ns).Create(newRC(rcName, rcReplicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.Legacy().ReplicationControllers(ns).Delete(rcName, nil)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, podName, false, rcReplicas)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}

	// Create a deployment to delete nginx pods and instead bring up redis-slave pods.
	deploymentName, deploymentImageName := "redis-deployment", "redis-slave"
	deploymentReplicas := 4
	deploymentImage := "gcr.io/google_samples/gb-redisslave:v1"
	deploymentMinReadySeconds := 5
	deploymentStrategyType := extensions.RollingUpdateDeploymentStrategyType
	Logf("Creating deployment %s", deploymentName)
	newDeployment := newDeployment(deploymentName, deploymentReplicas, deploymentPodLabels, deploymentImageName, deploymentImage, deploymentStrategyType, nil)
	newDeployment.Spec.MinReadySeconds = deploymentMinReadySeconds
	newDeployment.Spec.Strategy.RollingUpdate = &extensions.RollingUpdateDeployment{
		MaxUnavailable: intstr.FromInt(1),
		MaxSurge:       intstr.FromInt(1),
	}
	_, err = c.Extensions().Deployments(ns).Create(newDeployment)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
	}()
	// Verify that the pods were scaled up and down as expected. We use events to verify that.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	// Make sure the deployment starts to scale up and down RCs
	waitForPartialEvents(unversionedClient, ns, deployment, 2)
	// Check if it's updated to revision 1 correctly
	_, newRC := checkDeploymentRevision(c, ns, deploymentName, "1", deploymentImageName, deploymentImage)

	// Before the deployment finishes, update the deployment to rollover the above 2 rcs and bring up redis pods.
	// If the deployment already finished here, the test would fail. When this happens, increase its minReadySeconds or replicas to prevent it.
	Expect(newRC.Spec.Replicas).Should(BeNumerically("<", deploymentReplicas))
	updatedDeploymentImage := "redis"
	newDeployment.Spec.Template.Spec.Containers[0].Name = updatedDeploymentImage
	newDeployment.Spec.Template.Spec.Containers[0].Image = updatedDeploymentImage
	Logf("updating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Update(newDeployment)
	Expect(err).NotTo(HaveOccurred())

	err = waitForDeploymentStatus(c, ns, deploymentName, deploymentReplicas, deploymentReplicas-1, deploymentReplicas+1, deploymentMinReadySeconds)
	Expect(err).NotTo(HaveOccurred())

	// Check if it's updated to revision 2 correctly
	checkDeploymentRevision(c, ns, deploymentName, "2", updatedDeploymentImage, updatedDeploymentImage)
}

func testRecreateDeployment(f *Framework) {
	ns := f.Namespace.Name
	// TODO: remove unversionedClient when the refactoring is done. Currently some
	// functions like verifyPod still expects a unversioned#Client.
	unversionedClient := f.Client
	c := clientset.FromUnversionedClient(unversionedClient)
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "sample-pod-3"}
	rcPodLabels := map[string]string{
		"name": "sample-pod-3",
		"pod":  "nginx",
	}

	rcName := "nginx-controller"
	replicas := 3
	_, err := c.Legacy().ReplicationControllers(ns).Create(newRC(rcName, replicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.Legacy().ReplicationControllers(ns).Delete(rcName, nil)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(unversionedClient, ns, "sample-pod-3", false, 3)
	if err != nil {
		Logf("error in waiting for pods to come up: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}

	// Create a deployment to delete nginx pods and instead bring up redis pods.
	deploymentName := "redis-deployment-3"
	Logf("Creating deployment %s", deploymentName)
	_, err = c.Extensions().Deployments(ns).Create(newDeployment(deploymentName, replicas, deploymentPodLabels, "redis", "redis", extensions.RecreateDeploymentStrategyType, nil))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Extensions().Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
		// TODO: remove this once we can delete rcs with deployment
		newRC, err := deploymentutil.GetNewRC(*deployment, c)
		Expect(err).NotTo(HaveOccurred())
		Expect(c.Legacy().ReplicationControllers(ns).Delete(newRC.Name, nil)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentStatus(c, ns, deploymentName, replicas, 0, replicas, 0)
	if err != nil {
		deployment, _ := c.Extensions().Deployments(ns).Get(deploymentName)
		Logf("deployment = %+v", deployment)
	}
	Expect(err).NotTo(HaveOccurred())

	// Verify that the pods were scaled up and down as expected. We use events to verify that.
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	waitForEvents(unversionedClient, ns, deployment, 2)
	events, err := c.Legacy().Events(ns).Search(deployment)
	if err != nil {
		Logf("error in listing events: %s", err)
		Expect(err).NotTo(HaveOccurred())
	}
	// There should be 2 events, one to scale up the new RC and then to scale down the old RC.
	Expect(len(events.Items)).Should(Equal(2))
	newRC, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	Expect(newRC).NotTo(Equal(nil))
	Expect(events.Items[0].Message).Should(Equal(fmt.Sprintf("Scaled down rc %s to 0", rcName)))
	Expect(events.Items[1].Message).Should(Equal(fmt.Sprintf("Scaled up rc %s to 3", newRC.Name)))

	// Check if it's updated to revision 1 correctly
	checkDeploymentRevision(c, ns, deploymentName, "1", "redis", "redis")
}

//.........这里部分代码省略.........
				if !t.Spec.Paused {
					return true, nil
				}
				t.Spec.Paused = false
				_, err := c.Extensions().Deployments(t.Namespace).Update(t)
				return false, err
			default:
				gvk, err := api.Scheme.ObjectKind(object)
				if err != nil {
					return false, err
				}
				return false, fmt.Errorf("cannot resume %v", gvk)
			}
		},
		Scaler: func(mapping *meta.RESTMapping) (kubectl.Scaler, error) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			if err != nil {
				return nil, err
			}
			return kubectl.ScalerFor(mapping.GroupVersionKind.GroupKind(), client)
		},
		Reaper: func(mapping *meta.RESTMapping) (kubectl.Reaper, error) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			if err != nil {
				return nil, err
			}
			return kubectl.ReaperFor(mapping.GroupVersionKind.GroupKind(), client)
		},
		HistoryViewer: func(mapping *meta.RESTMapping) (kubectl.HistoryViewer, error) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			clientset := clientset.FromUnversionedClient(client)
			if err != nil {
				return nil, err
			}
			return kubectl.HistoryViewerFor(mapping.GroupVersionKind.GroupKind(), clientset)
		},
		Rollbacker: func(mapping *meta.RESTMapping) (kubectl.Rollbacker, error) {
			mappingVersion := mapping.GroupVersionKind.GroupVersion()
			client, err := clients.ClientForVersion(&mappingVersion)
			if err != nil {
				return nil, err
			}
			return kubectl.RollbackerFor(mapping.GroupVersionKind.GroupKind(), client)
		},
		Validator: func(validate bool, cacheDir string) (validation.Schema, error) {
			if validate {
				client, err := clients.ClientForVersion(nil)
				if err != nil {
					return nil, err
				}
				dir := cacheDir
				if len(dir) > 0 {
					version, err := client.ServerVersion()
					if err != nil {
						return nil, err
					}
					dir = path.Join(cacheDir, version.String())
				}
				return &clientSwaggerSchema{
					c:        client,
					cacheDir: dir,
					mapper:   api.RESTMapper,
				}, nil