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test: update replica set e2e test
This commit is contained in:
Michail Kargakis
parent
03aba86974
commit
b0b0ef7377
@ -73,7 +73,7 @@ func etcdFailTest(f *framework.Framework, failCommand, fixCommand string) {
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checkExistingRCRecovers(f)
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ServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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testReplicationControllerServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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}
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// For this duration, etcd will be failed by executing a failCommand on the master.
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@ -37,18 +37,18 @@ var _ = framework.KubeDescribe("ReplicationController", func() {
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f := framework.NewDefaultFramework("replication-controller")
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It("should serve a basic image on each replica with a public image [Conformance]", func() {
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ServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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testReplicationControllerServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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})
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It("should serve a basic image on each replica with a private image", func() {
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// requires private images
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framework.SkipUnlessProviderIs("gce", "gke")
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ServeImageOrFail(f, "private", "gcr.io/k8s-authenticated-test/serve_hostname:v1.4")
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testReplicationControllerServeImageOrFail(f, "private", "gcr.io/k8s-authenticated-test/serve_hostname:v1.4")
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})
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It("should surface a failure condition on a common issue like exceeded quota", func() {
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rcConditionCheck(f)
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testReplicationControllerConditionCheck(f)
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})
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})
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@ -81,70 +81,57 @@ func newRC(rsName string, replicas int32, rcPodLabels map[string]string, imageNa
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// A basic test to check the deployment of an image using
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// a replication controller. The image serves its hostname
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// which is checked for each replica.
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func ServeImageOrFail(f *framework.Framework, test string, image string) {
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func testReplicationControllerServeImageOrFail(f *framework.Framework, test string, image string) {
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name := "my-hostname-" + test + "-" + string(uuid.NewUUID())
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replicas := int32(2)
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replicas := int32(1)
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// Create a replication controller for a service
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// that serves its hostname.
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// The source for the Docker containter kubernetes/serve_hostname is
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// in contrib/for-demos/serve_hostname
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By(fmt.Sprintf("Creating replication controller %s", name))
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controller, err := f.ClientSet.Core().ReplicationControllers(f.Namespace.Name).Create(&v1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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},
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Spec: v1.ReplicationControllerSpec{
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Replicas: func(i int32) *int32 { return &i }(replicas),
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Selector: map[string]string{
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"name": name,
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},
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Template: &v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"name": name},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: name,
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Image: image,
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Ports: []v1.ContainerPort{{ContainerPort: 9376}},
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},
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},
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},
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},
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},
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})
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newRC := newRC(name, replicas, map[string]string{"name": name}, name, image)
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newRC.Spec.Template.Spec.Containers[0].Ports = []v1.ContainerPort{{ContainerPort: 9376}}
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_, err := f.ClientSet.Core().ReplicationControllers(f.Namespace.Name).Create(newRC)
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Expect(err).NotTo(HaveOccurred())
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// Cleanup the replication controller when we are done.
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defer func() {
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// Resize the replication controller to zero to get rid of pods.
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if err := framework.DeleteRCAndPods(f.ClientSet, f.InternalClientset, f.Namespace.Name, controller.Name); err != nil {
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framework.Logf("Failed to cleanup replication controller %v: %v.", controller.Name, err)
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}
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}()
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// List the pods, making sure we observe all the replicas.
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
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// Check that pods for the new RC were created.
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// TODO: Maybe switch PodsCreated to just check owner references.
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pods, err := framework.PodsCreated(f.ClientSet, f.Namespace.Name, name, replicas)
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By("Ensuring each pod is running")
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Expect(err).NotTo(HaveOccurred())
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// Wait for the pods to enter the running state. Waiting loops until the pods
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// are running so non-running pods cause a timeout for this test.
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framework.Logf("Ensuring all pods for ReplicationController %q are running", name)
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running := int32(0)
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for _, pod := range pods.Items {
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if pod.DeletionTimestamp != nil {
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continue
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}
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err = f.WaitForPodRunning(pod.Name)
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if err != nil {
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updatePod, getErr := f.ClientSet.Core().Pods(f.Namespace.Name).Get(pod.Name, metav1.GetOptions{})
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if getErr == nil {
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err = fmt.Errorf("Pod %q never run (phase: %s, conditions: %+v): %v", updatePod.Name, updatePod.Status.Phase, updatePod.Status.Conditions, err)
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} else {
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err = fmt.Errorf("Pod %q never run: %v", pod.Name, err)
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}
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}
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Expect(err).NotTo(HaveOccurred())
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framework.Logf("Pod %q is running (conditions: %+v)", pod.Name, pod.Status.Conditions)
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running++
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}
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// Sanity check
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if running != replicas {
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Expect(fmt.Errorf("unexpected number of running pods: %+v", pods.Items)).NotTo(HaveOccurred())
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}
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// Verify that something is listening.
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By("Trying to dial each unique pod")
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framework.Logf("Trying to dial the pod")
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retryTimeout := 2 * time.Minute
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retryInterval := 5 * time.Second
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
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err = wait.Poll(retryInterval, retryTimeout, framework.PodProxyResponseChecker(f.ClientSet, f.Namespace.Name, label, name, true, pods).CheckAllResponses)
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if err != nil {
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framework.Failf("Did not get expected responses within the timeout period of %.2f seconds.", retryTimeout.Seconds())
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@ -155,12 +142,12 @@ func ServeImageOrFail(f *framework.Framework, test string, image string) {
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// 2. Create a replication controller that wants to run 3 pods.
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// 3. Check replication controller conditions for a ReplicaFailure condition.
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// 4. Relax quota or scale down the controller and observe the condition is gone.
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func rcConditionCheck(f *framework.Framework) {
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func testReplicationControllerConditionCheck(f *framework.Framework) {
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c := f.ClientSet
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namespace := f.Namespace.Name
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name := "condition-test"
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By(fmt.Sprintf("Creating quota %q that allows only two pods to run in the current namespace", name))
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framework.Logf("Creating quota %q that allows only two pods to run in the current namespace", name)
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quota := newPodQuota(name, "2")
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_, err := c.Core().ResourceQuotas(namespace).Create(quota)
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Expect(err).NotTo(HaveOccurred())
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@ -41,7 +41,7 @@ func newRS(rsName string, replicas int32, rsPodLabels map[string]string, imageNa
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Name: rsName,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: func(i int32) *int32 { return &i }(replicas),
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Replicas: &replicas,
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: rsPodLabels,
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@ -77,87 +77,73 @@ var _ = framework.KubeDescribe("ReplicaSet", func() {
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f := framework.NewDefaultFramework("replicaset")
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It("should serve a basic image on each replica with a public image [Conformance]", func() {
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ReplicaSetServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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testReplicaSetServeImageOrFail(f, "basic", "gcr.io/google_containers/serve_hostname:v1.4")
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})
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It("should serve a basic image on each replica with a private image", func() {
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// requires private images
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framework.SkipUnlessProviderIs("gce", "gke")
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ReplicaSetServeImageOrFail(f, "private", "gcr.io/k8s-authenticated-test/serve_hostname:v1.4")
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testReplicaSetServeImageOrFail(f, "private", "gcr.io/k8s-authenticated-test/serve_hostname:v1.4")
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})
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It("should surface a failure condition on a common issue like exceeded quota", func() {
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rsConditionCheck(f)
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testReplicaSetConditionCheck(f)
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})
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})
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// A basic test to check the deployment of an image using a ReplicaSet. The
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// image serves its hostname which is checked for each replica.
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func ReplicaSetServeImageOrFail(f *framework.Framework, test string, image string) {
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func testReplicaSetServeImageOrFail(f *framework.Framework, test string, image string) {
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name := "my-hostname-" + test + "-" + string(uuid.NewUUID())
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replicas := int32(2)
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replicas := int32(1)
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// Create a ReplicaSet for a service that serves its hostname.
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// The source for the Docker containter kubernetes/serve_hostname is
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// in contrib/for-demos/serve_hostname
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By(fmt.Sprintf("Creating ReplicaSet %s", name))
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rs, err := f.ClientSet.Extensions().ReplicaSets(f.Namespace.Name).Create(&extensions.ReplicaSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: name,
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},
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Spec: extensions.ReplicaSetSpec{
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Replicas: func(i int32) *int32 { return &i }(replicas),
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Selector: &metav1.LabelSelector{MatchLabels: map[string]string{
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"name": name,
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}},
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Template: v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"name": name},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{
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{
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Name: name,
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Image: image,
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Ports: []v1.ContainerPort{{ContainerPort: 9376}},
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},
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},
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},
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},
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},
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})
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framework.Logf("Creating ReplicaSet %s", name)
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newRS := newRS(name, replicas, map[string]string{"name": name}, name, image)
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newRS.Spec.Template.Spec.Containers[0].Ports = []v1.ContainerPort{{ContainerPort: 9376}}
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_, err := f.ClientSet.Extensions().ReplicaSets(f.Namespace.Name).Create(newRS)
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Expect(err).NotTo(HaveOccurred())
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// Cleanup the ReplicaSet when we are done.
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defer func() {
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// Resize the ReplicaSet to zero to get rid of pods.
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if err := framework.DeleteReplicaSet(f.ClientSet, f.InternalClientset, f.Namespace.Name, rs.Name); err != nil {
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framework.Logf("Failed to cleanup ReplicaSet %v: %v.", rs.Name, err)
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}
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}()
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// List the pods, making sure we observe all the replicas.
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
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// Check that pods for the new RS were created.
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// TODO: Maybe switch PodsCreated to just check owner references.
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pods, err := framework.PodsCreated(f.ClientSet, f.Namespace.Name, name, replicas)
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Expect(err).NotTo(HaveOccurred())
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By("Ensuring each pod is running")
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// Wait for the pods to enter the running state. Waiting loops until the pods
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// are running so non-running pods cause a timeout for this test.
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framework.Logf("Ensuring a pod for ReplicaSet %q is running", name)
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running := int32(0)
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for _, pod := range pods.Items {
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if pod.DeletionTimestamp != nil {
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continue
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}
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err = f.WaitForPodRunning(pod.Name)
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if err != nil {
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updatePod, getErr := f.ClientSet.Core().Pods(f.Namespace.Name).Get(pod.Name, metav1.GetOptions{})
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if getErr == nil {
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err = fmt.Errorf("Pod %q never run (phase: %s, conditions: %+v): %v", updatePod.Name, updatePod.Status.Phase, updatePod.Status.Conditions, err)
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} else {
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err = fmt.Errorf("Pod %q never run: %v", pod.Name, err)
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}
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}
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Expect(err).NotTo(HaveOccurred())
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framework.Logf("Pod %q is running (conditions: %+v)", pod.Name, pod.Status.Conditions)
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running++
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}
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// Sanity check
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if running != replicas {
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Expect(fmt.Errorf("unexpected number of running pods: %+v", pods.Items)).NotTo(HaveOccurred())
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}
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// Verify that something is listening.
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By("Trying to dial each unique pod")
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framework.Logf("Trying to dial the pod")
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retryTimeout := 2 * time.Minute
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retryInterval := 5 * time.Second
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label := labels.SelectorFromSet(labels.Set(map[string]string{"name": name}))
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err = wait.Poll(retryInterval, retryTimeout, framework.PodProxyResponseChecker(f.ClientSet, f.Namespace.Name, label, name, true, pods).CheckAllResponses)
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if err != nil {
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framework.Failf("Did not get expected responses within the timeout period of %.2f seconds.", retryTimeout.Seconds())
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@ -168,7 +154,7 @@ func ReplicaSetServeImageOrFail(f *framework.Framework, test string, image strin
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// 2. Create a replica set that wants to run 3 pods.
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// 3. Check replica set conditions for a ReplicaFailure condition.
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// 4. Scale down the replica set and observe the condition is gone.
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func rsConditionCheck(f *framework.Framework) {
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func testReplicaSetConditionCheck(f *framework.Framework) {
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c := f.ClientSet
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namespace := f.Namespace.Name
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name := "condition-test"
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