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)
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 = 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())
// There should be rollback event after we rollback to revision 1
waitForEvents(unversionedClient, ns, deployment, 5)
events, err = c.Events(ns).Search(deployment)
Expect(err).NotTo(HaveOccurred())
Expect(events.Items[4].Reason).Should(Equal(deploymentutil.RollbackDone))
// Check if it's updated to revision 3 correctly
checkDeploymentRevision(c, ns, deploymentName, "3", deploymentImageName, deploymentImage)
// Update the deploymentRollback to rollback to revision 10
// Since there's no revision 10 in history, it should stay as revision 3, and emit an event
revision = 10
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())
// There should be revision not found event since there's no revision 10
waitForEvents(unversionedClient, ns, deployment, 7)
events, err = c.Events(ns).Search(deployment)
Expect(err).NotTo(HaveOccurred())
Expect(events.Items[6].Reason).Should(Equal(deploymentutil.RollbackRevisionNotFound))
// Check if it's still revision 3
checkDeploymentRevision(c, ns, deploymentName, "3", deploymentImageName, deploymentImage)
// Update the deploymentRollback to rollback to revision 3
// Since it's already revision 3, it should be no-op and emit an event
revision = 3
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())
// There should be revision template unchanged event since it's already revision 3
waitForEvents(unversionedClient, ns, deployment, 8)
events, err = c.Events(ns).Search(deployment)
Expect(err).NotTo(HaveOccurred())
Expect(events.Items[7].Reason).Should(Equal(deploymentutil.RollbackTemplateUnchanged))
// Check if it's still revision 3
checkDeploymentRevision(c, ns, deploymentName, "3", deploymentImageName, deploymentImage)
}
// 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())
}
}
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")
}
