Golang deployment.GetNewRC函数代码示例

func testRollingUpdateDeploymentEvents(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "sample-pod-2"}
	rcPodLabels := map[string]string{
		"name": "sample-pod-2",
		"pod":  "nginx",
	}
	rcName := "nginx-controller"
	replicas := 1
	_, err := c.ReplicationControllers(ns).Create(newRC(rcName, replicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.ReplicationControllers(ns).Delete(rcName)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(c, ns, "sample-pod-2", 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-2"
	Logf("Creating deployment %s", deploymentName)
	_, err = c.Deployments(ns).Create(newDeployment(deploymentName, replicas, deploymentPodLabels, "redis", "redis"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.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.ReplicationControllers(ns).Delete(newRC.Name)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentStatus(c, ns, deploymentName, replicas, replicas-1, replicas+1, 0)
	Expect(err).NotTo(HaveOccurred())
	// Verify that the pods were scaled up and down as expected. We use events to verify that.
	deployment, err := c.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	waitForEvents(c, ns, deployment, 2)
	events, err := c.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 up rc %s to 1", newRC.Name)))
	Expect(events.Items[1].Message).Should(Equal(fmt.Sprintf("Scaled down rc %s to 0", rcName)))
}

func testRollingUpdateDeployment(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	// 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.ReplicationControllers(ns).Create(newRC(rcName, replicas, rcPodLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.ReplicationControllers(ns).Delete(rcName)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(c, 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)
	deployment, err := c.Deployments(ns).Create(newDeployment(deploymentName, replicas, deploymentPodLabels, "redis", "redis", extensions.RollingUpdateDeploymentStrategyType, nil))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.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.ReplicationControllers(ns).Delete(newRC.Name)).NotTo(HaveOccurred())
	}()

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

	// The new RC of this deployment should be revision 1
	newRC, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	Expect(newRC.Annotations).NotTo(Equal(nil))
	Expect(newRC.Annotations[deploymentutil.RevisionAnnotation]).Should(Equal("1"))
	// This deployment should be revision 1
	deployment, err = c.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	Expect(deployment.Annotations).NotTo(Equal(nil))
	Expect(deployment.Annotations[deploymentutil.RevisionAnnotation]).Should(Equal("1"))
}

// History returns a revision-to-RC map as the revision history of a deployment
func (h *DeploymentHistoryViewer) History(namespace, name string) (HistoryInfo, error) {
	historyInfo := HistoryInfo{
		RevisionToTemplate: make(map[int64]*api.PodTemplateSpec),
	}
	deployment, err := h.c.Extensions().Deployments(namespace).Get(name)
	if err != nil {
		return historyInfo, fmt.Errorf("failed to retrieve deployment %s: %v", name, err)
	}
	_, allOldRCs, err := deploymentutil.GetOldRCs(*deployment, h.c)
	if err != nil {
		return historyInfo, fmt.Errorf("failed to retrieve old RCs from deployment %s: %v", name, err)
	}
	newRC, err := deploymentutil.GetNewRC(*deployment, h.c)
	if err != nil {
		return historyInfo, fmt.Errorf("failed to retrieve new RC from deployment %s: %v", name, err)
	}
	allRCs := append(allOldRCs, newRC)
	for _, rc := range allRCs {
		v, err := deploymentutil.Revision(rc)
		if err != nil {
			continue
		}
		historyInfo.RevisionToTemplate[v] = rc.Spec.Template
		changeCause := getChangeCause(rc)
		if historyInfo.RevisionToTemplate[v].Annotations == nil {
			historyInfo.RevisionToTemplate[v].Annotations = make(map[string]string)
		}
		historyInfo.RevisionToTemplate[v].Annotations[ChangeCauseAnnotation] = changeCause
	}
	return historyInfo, nil
}

func testNewDeployment(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	deploymentName := "nginx-deployment"
	podLabels := map[string]string{"name": "nginx"}
	replicas := 1
	Logf("Creating simple deployment %s", deploymentName)
	_, err := c.Deployments(ns).Create(newDeployment(deploymentName, replicas, podLabels, "nginx", "nginx"))
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.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.ReplicationControllers(ns).Delete(newRC.Name)).NotTo(HaveOccurred())
	}()
	// Check that deployment is created fine.
	deployment, err := c.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(c, 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.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	Expect(deployment.Status.Replicas).Should(Equal(replicas))
	Expect(deployment.Status.UpdatedReplicas).Should(Equal(replicas))
}

// Returns an RC that matches the intent of the given deployment.
// It creates a new RC if required.
func (d *DeploymentController) getNewRC(deployment extensions.Deployment) (*api.ReplicationController, error) {
	existingNewRC, err := deploymentutil.GetNewRC(deployment, d.client)
	if err != nil || existingNewRC != nil {
		return existingNewRC, err
	}
	// new RC does not exist, create one.
	namespace := deployment.ObjectMeta.Namespace
	podTemplateSpecHash := deploymentutil.GetPodTemplateSpecHash(deployment.Spec.Template)
	newRCTemplate := deploymentutil.GetNewRCTemplate(deployment)
	// Add podTemplateHash label to selector.
	newRCSelector := deploymentutil.CloneAndAddLabel(deployment.Spec.Selector, deployment.Spec.UniqueLabelKey, podTemplateSpecHash)

	newRC := api.ReplicationController{
		ObjectMeta: api.ObjectMeta{
			GenerateName: deployment.Name + "-",
			Namespace:    namespace,
		},
		Spec: api.ReplicationControllerSpec{
			Replicas: 0,
			Selector: newRCSelector,
			Template: &newRCTemplate,
		},
	}
	createdRC, err := d.client.ReplicationControllers(namespace).Create(&newRC)
	if err != nil {
		return nil, fmt.Errorf("error creating replication controller: %v", err)
	}
	return createdRC, nil
}

// Returns an RC that matches the intent of the given deployment.
// It creates a new RC if required.
func (d *DeploymentController) getNewRC(deployment extensions.Deployment) (*api.ReplicationController, error) {
	existingNewRC, err := deploymentUtil.GetNewRC(deployment, d.client)
	if err != nil || existingNewRC != nil {
		return existingNewRC, err
	}
	// new RC does not exist, create one.
	namespace := deployment.ObjectMeta.Namespace
	podTemplateSpecHash := deploymentUtil.GetPodTemplateSpecHash(deployment.Spec.Template)
	rcName := fmt.Sprintf("deploymentrc-%d", podTemplateSpecHash)
	newRCTemplate := deploymentUtil.GetNewRCTemplate(deployment)
	newRC := api.ReplicationController{
		ObjectMeta: api.ObjectMeta{
			Name:      rcName,
			Namespace: namespace,
		},
		Spec: api.ReplicationControllerSpec{
			Replicas: 0,
			Selector: newRCTemplate.ObjectMeta.Labels,
			Template: newRCTemplate,
		},
	}
	createdRC, err := d.client.ReplicationControllers(namespace).Create(&newRC)
	if err != nil {
		return nil, fmt.Errorf("error creating replication controller: %v", err)
	}
	return createdRC, nil
}

func testNewDeployment(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	deploymentName := "nginx-deployment"
	podLabels := map[string]string{"name": "nginx"}
	Logf("Creating simple deployment %s", deploymentName)
	_, err := c.Deployments(ns).Create(&extensions.Deployment{
		ObjectMeta: api.ObjectMeta{
			Name: deploymentName,
		},
		Spec: extensions.DeploymentSpec{
			Replicas:       1,
			Selector:       podLabels,
			UniqueLabelKey: extensions.DefaultDeploymentUniqueLabelKey,
			Template: api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: podLabels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{
						{
							Name:  "nginx",
							Image: "nginx",
						},
					},
				},
			},
		},
	})
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.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.ReplicationControllers(ns).Delete(newRC.Name)).NotTo(HaveOccurred())
	}()
	// Check that deployment is created fine.
	deployment, err := c.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())

	// Verify that the required pods have come up.
	err = verifyPods(c, ns, "nginx", false, 1)
	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.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	Expect(deployment.Status.Replicas).Should(Equal(1))
	Expect(deployment.Status.UpdatedReplicas).Should(Equal(1))
}

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())
}

// checkDeploymentRevision checks if the input deployment's and its new RC's revision and images are as expected.
func checkDeploymentRevision(c *clientset.Clientset, ns, deploymentName, revision, imageName, image string) (*extensions.Deployment, *api.ReplicationController) {
	deployment, err := c.Extensions().Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	// Check revision of the new RC of this deployment
	newRC, err := deploymentutil.GetNewRC(*deployment, c)
	Expect(err).NotTo(HaveOccurred())
	Expect(newRC.Annotations).NotTo(Equal(nil))
	Expect(newRC.Annotations[deploymentutil.RevisionAnnotation]).Should(Equal(revision))
	// Check revision of This deployment
	Expect(deployment.Annotations).NotTo(Equal(nil))
	Expect(deployment.Annotations[deploymentutil.RevisionAnnotation]).Should(Equal(revision))
	if len(imageName) > 0 {
		// Check the image the new RC creates
		Expect(newRC.Spec.Template.Spec.Containers[0].Name).Should(Equal(imageName))
		Expect(newRC.Spec.Template.Spec.Containers[0].Image).Should(Equal(image))
		// Check the image the deployment creates
		Expect(deployment.Spec.Template.Spec.Containers[0].Name).Should(Equal(imageName))
		Expect(deployment.Spec.Template.Spec.Containers[0].Image).Should(Equal(image))
	}
	return deployment, newRC
}

// 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 testRollingUpdateDeploymentEvents(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "sample-pod"}
	rcPodLabels := map[string]string{
		"name": "sample-pod",
		"pod":  "nginx",
	}
	rcName := "nginx-controller"
	_, err := c.ReplicationControllers(ns).Create(&api.ReplicationController{
		ObjectMeta: api.ObjectMeta{
			Name: rcName,
		},
		Spec: api.ReplicationControllerSpec{
			Replicas: 1,
			Selector: rcPodLabels,
			Template: &api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: rcPodLabels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{
						{
							Name:  "nginx",
							Image: "nginx",
						},
					},
				},
			},
		},
	})
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.ReplicationControllers(ns).Delete(rcName)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(c, ns, "sample-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)
	newDeployment := experimental.Deployment{
		ObjectMeta: api.ObjectMeta{
			Name: deploymentName,
		},
		Spec: experimental.DeploymentSpec{
			Replicas:       1,
			Selector:       deploymentPodLabels,
			UniqueLabelKey: "deployment.kubernetes.io/podTemplateHash",
			Template: &api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: deploymentPodLabels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{
						{
							Name:  "redis",
							Image: "redis",
						},
					},
				},
			},
		},
	}
	_, err = c.Deployments(ns).Create(&newDeployment)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting deployment %s", deploymentName)
		Expect(c.Deployments(ns).Delete(deploymentName, nil)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentStatus(c, ns, deploymentName, 1, 0, 2)
	Expect(err).NotTo(HaveOccurred())
	// Verify that the pods were scaled up and down as expected. We use events to verify that.
	deployment, err := c.Deployments(ns).Get(deploymentName)
	Expect(err).NotTo(HaveOccurred())
	events, err := c.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 up rc %s to 1", newRC.Name)))
	Expect(events.Items[1].Message).Should(Equal(fmt.Sprintf("Scaled down rc %s to 0", rcName)))
}

func testRollingUpdateDeployment(f *Framework) {
	ns := f.Namespace.Name
	c := f.Client
	// Create nginx pods.
	deploymentPodLabels := map[string]string{"name": "sample-pod"}
	rcPodLabels := map[string]string{
		"name": "sample-pod",
		"pod":  "nginx",
	}

	rcName := "nginx-controller"
	_, err := c.ReplicationControllers(ns).Create(&api.ReplicationController{
		ObjectMeta: api.ObjectMeta{
			Name: rcName,
		},
		Spec: api.ReplicationControllerSpec{
			Replicas: 3,
			Selector: rcPodLabels,
			Template: &api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: rcPodLabels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{
						{
							Name:  "nginx",
							Image: "nginx",
						},
					},
				},
			},
		},
	})
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		Logf("deleting replication controller %s", rcName)
		Expect(c.ReplicationControllers(ns).Delete(rcName)).NotTo(HaveOccurred())
	}()
	// Verify that the required pods have come up.
	err = verifyPods(c, 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)
	newDeployment := extensions.Deployment{
		ObjectMeta: api.ObjectMeta{
			Name: deploymentName,
		},
		Spec: extensions.DeploymentSpec{
			Replicas:       3,
			Selector:       deploymentPodLabels,
			UniqueLabelKey: extensions.DefaultDeploymentUniqueLabelKey,
			Template: api.PodTemplateSpec{
				ObjectMeta: api.ObjectMeta{
					Labels: deploymentPodLabels,
				},
				Spec: api.PodSpec{
					Containers: []api.Container{
						{
							Name:  "redis",
							Image: "redis",
						},
					},
				},
			},
		},
	}
	_, err = c.Deployments(ns).Create(&newDeployment)
	Expect(err).NotTo(HaveOccurred())
	defer func() {
		deployment, err := c.Deployments(ns).Get(deploymentName)
		Expect(err).NotTo(HaveOccurred())
		Logf("deleting deployment %s", deploymentName)
		Expect(c.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.ReplicationControllers(ns).Delete(newRC.Name)).NotTo(HaveOccurred())
	}()

	err = waitForDeploymentStatus(c, ns, deploymentName, 3, 2, 4, 0)
	Expect(err).NotTo(HaveOccurred())
}

// 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.........