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Create ReplicationController lifecycle test
This commit is contained in:
Caleb Woodbine
parent
d98975217a
commit
6b8b08c8ab
@ -17,6 +17,7 @@ limitations under the License.
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package apps
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import (
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"encoding/json"
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"context"
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"fmt"
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"time"
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@ -34,6 +35,10 @@ import (
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
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imageutils "k8s.io/kubernetes/test/utils/image"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/runtime/schema"
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autoscalingv1 "k8s.io/api/autoscaling/v1"
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"k8s.io/client-go/dynamic"
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"github.com/onsi/ginkgo"
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)
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@ -41,6 +46,14 @@ import (
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var _ = SIGDescribe("ReplicationController", func() {
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f := framework.NewDefaultFramework("replication-controller")
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var ns string
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var dc dynamic.Interface
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ginkgo.BeforeEach(func() {
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ns = f.Namespace.Name
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dc = f.DynamicClient
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})
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/*
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Release : v1.9
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Testname: Replication Controller, run basic image
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@ -84,6 +97,163 @@ var _ = SIGDescribe("ReplicationController", func() {
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framework.ConformanceIt("should release no longer matching pods", func() {
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testRCReleaseControlledNotMatching(f)
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})
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ginkgo.It("should test the lifecycle of a ReplicationController", func() {
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testRcName := "rc-test"
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testRcNamespace := ns
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testRcInitialReplicaCount := int32(1)
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testRcMaxReplicaCount := int32(2)
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rcResource := schema.GroupVersionResource{Group: "", Version: "v1", Resource: "replicationcontrollers"}
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rcTest := v1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: testRcName,
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Labels: map[string]string{"test-rc-static": "true"},
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},
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Spec: v1.ReplicationControllerSpec{
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Replicas: &testRcInitialReplicaCount,
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Selector: map[string]string{"test-rc-static": "true"},
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Template: &v1.PodTemplateSpec{
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ObjectMeta: metav1.ObjectMeta{
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Name: testRcName,
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Labels: map[string]string{"test-rc-static": "true"},
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},
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Spec: v1.PodSpec{
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Containers: []v1.Container{{
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Name: testRcName,
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Image: "nginx",
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}},
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},
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},
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},
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}
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// Create a ReplicationController
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_, err := f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Create(context.TODO(), &rcTest, metav1.CreateOptions{})
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framework.ExpectNoError(err, "Failed to create ReplicationController")
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// setup a watch for the RC
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rcWatch, err := f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Watch(context.TODO(), metav1.ListOptions{LabelSelector: "test-rc-static=true"})
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framework.ExpectNoError(err, "Failed to setup watch on newly created ReplicationController")
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rcWatchChan := rcWatch.ResultChan()
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for event := range rcWatchChan {
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rc, ok := event.Object.(*v1.ReplicationController)
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framework.ExpectEqual(ok, true, "Unable to convert type of ReplicationController watch event")
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if rc.Status.Replicas == testRcInitialReplicaCount && rc.Status.ReadyReplicas == testRcInitialReplicaCount {
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break
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}
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}
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rcLabelPatchPayload, err := json.Marshal(v1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Labels: map[string]string{"test-rc": "patched"},
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},
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})
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framework.ExpectNoError(err, "failed to marshal json of replicationcontroller label patch")
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// Patch the ReplicationController
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_, err = f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Patch(context.TODO(), testRcName, types.StrategicMergePatchType, []byte(rcLabelPatchPayload), metav1.PatchOptions{})
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framework.ExpectNoError(err, "Failed to patch ReplicationController")
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rcStatusPatchPayload, err := json.Marshal(map[string]interface{}{
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"status": map[string]interface{}{
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"readyReplicas": 0,
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"availableReplicas": 0,
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},
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})
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framework.ExpectNoError(err, "Failed to marshal JSON of ReplicationController label patch")
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// Patch the ReplicationController's status
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rcStatus, err := f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Patch(context.TODO(), testRcName, types.StrategicMergePatchType, []byte(rcStatusPatchPayload), metav1.PatchOptions{}, "status")
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framework.ExpectNoError(err, "Failed to patch ReplicationControllerStatus")
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framework.ExpectEqual(rcStatus.Status.ReadyReplicas, int32(0), "ReplicationControllerStatus's readyReplicas does not equal 0")
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rcStatusUnstructured, err := dc.Resource(rcResource).Namespace(testRcNamespace).Get(testRcName, metav1.GetOptions{}, "status")
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framework.ExpectNoError(err, "Failed to fetch ReplicationControllerStatus")
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rcStatusUjson, err := json.Marshal(rcStatusUnstructured)
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framework.ExpectNoError(err, "Failed to marshal json of replicationcontroller label patch")
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json.Unmarshal(rcStatusUjson, &rcStatus)
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framework.ExpectEqual(rcStatus.Status.Replicas, testRcInitialReplicaCount, "ReplicationController ReplicaSet cound does not match initial Replica count")
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rcScalePatchPayload, err := json.Marshal(autoscalingv1.Scale{
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Spec: autoscalingv1.ScaleSpec{
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Replicas: 2,
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},
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})
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framework.ExpectNoError(err, "Failed to marshal json of replicationcontroller label patch")
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// Patch the ReplicationController's scale
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rcScale, err := f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Patch(context.TODO(), testRcName, types.StrategicMergePatchType, []byte(rcScalePatchPayload), metav1.PatchOptions{}, "scale")
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framework.ExpectNoError(err, "Failed to patch ReplicationControllerScale")
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for event := range rcWatchChan {
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rc, ok := event.Object.(*v1.ReplicationController)
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framework.ExpectEqual(ok, true, "Unable to convert type of ReplicationController watch event")
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if rc.Status.Replicas == testRcMaxReplicaCount && rc.Status.ReadyReplicas == testRcMaxReplicaCount {
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rcScale = rc
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break
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}
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}
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framework.ExpectEqual(rcScale.Status.Replicas, testRcMaxReplicaCount, "ReplicationController ReplicasSet Scale does not match the expected scale")
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// Get the ReplicationController
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rc, err := f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Get(context.TODO(), testRcName, metav1.GetOptions{})
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framework.ExpectNoError(err, "Failed to fetch ReplicationController")
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framework.ExpectEqual(rc.ObjectMeta.Labels["test-rc"], "patched", "ReplicationController is missing a label from earlier patch")
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rcStatusUpdatePayload := rc
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rcStatusUpdatePayload.Status.AvailableReplicas = 1
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rcStatusUpdatePayload.Status.ReadyReplicas = 1
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// Replace the ReplicationController's status
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rcStatus, err = f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).UpdateStatus(context.TODO(), rcStatusUpdatePayload, metav1.UpdateOptions{})
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framework.ExpectNoError(err, "Failed to update ReplicationControllerStatus")
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framework.ExpectEqual(rcStatus.Status.ReadyReplicas, int32(1), "ReplicationControllerStatus readyReplicas does not equal 1")
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for event := range rcWatchChan {
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rc, ok := event.Object.(*v1.ReplicationController)
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framework.ExpectEqual(ok, true, "Unable to convert type of ReplicationController watch event")
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if rc.Status.Replicas == testRcMaxReplicaCount && rc.Status.ReadyReplicas == testRcMaxReplicaCount {
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break
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}
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}
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rcs, err := f.ClientSet.CoreV1().ReplicationControllers("").List(context.TODO(), metav1.ListOptions{LabelSelector: "test-rc-static=true"})
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framework.ExpectNoError(err, "Failed to list ReplicationController")
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framework.ExpectEqual(len(rcs.Items) > 0, true)
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foundRc := false
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for _, rcItem := range rcs.Items {
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if rcItem.ObjectMeta.Name == testRcName &&
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rcItem.ObjectMeta.Namespace == testRcNamespace &&
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rcItem.ObjectMeta.Labels["test-rc-static"] == "true" &&
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rcItem.ObjectMeta.Labels["test-rc"] == "patched" &&
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rcItem.Status.Replicas == testRcMaxReplicaCount &&
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rcItem.Status.ReadyReplicas == testRcMaxReplicaCount {
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foundRc = true
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}
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}
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framework.ExpectEqual(foundRc, true)
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// Delete ReplicationController
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err = f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).DeleteCollection(context.TODO(), &metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: "test-rc-static=true"})
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framework.ExpectNoError(err, "Failed to delete ReplicationControllers")
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for event := range rcWatchChan {
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rc, ok := event.Object.(*v1.ReplicationController)
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framework.ExpectEqual(ok, true, "Unable to convert type of ReplicationController watch event")
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if rc.ObjectMeta.DeletionTimestamp != nil {
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break
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}
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}
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time.Sleep(1 * time.Second)
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// Get the ReplicationController to check that it's deleted
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_, err = f.ClientSet.CoreV1().ReplicationControllers(testRcNamespace).Get(context.TODO(), testRcName, metav1.GetOptions{})
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framework.ExpectError(err, "Failed to delete ReplicationController")
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})
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})
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func newRC(rsName string, replicas int32, rcPodLabels map[string]string, imageName string, image string, args []string) *v1.ReplicationController {
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