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Create ControllerRevision lifecycle e2e test
The test validates the following endpoints - createAppsV1NamespacedControllerRevision - deleteAppsV1CollectionNamespacedControllerRevision - deleteAppsV1NamespacedControllerRevision - listAppsV1ControllerRevisionForAllNamespaces - patchAppsV1NamespacedControllerRevision - readAppsV1NamespacedControllerRevision - replaceAppsV1NamespacedControllerRevision
This commit is contained in:
Stephen Heywood
parent
685b55e88b
commit
7a9552593b
253
test/e2e/apps/controller_revision.go
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253
test/e2e/apps/controller_revision.go
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/*
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Copyright 2022 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package apps
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import (
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"context"
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"fmt"
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"time"
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"github.com/onsi/ginkgo"
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appsv1 "k8s.io/api/apps/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/types"
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utilrand "k8s.io/apimachinery/pkg/util/rand"
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"k8s.io/apimachinery/pkg/util/wait"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/client-go/kubernetes/scheme"
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"k8s.io/client-go/util/retry"
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extensionsinternal "k8s.io/kubernetes/pkg/apis/extensions"
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"k8s.io/kubernetes/pkg/controller"
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labelsutil "k8s.io/kubernetes/pkg/util/labels"
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"k8s.io/kubernetes/test/e2e/framework"
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e2edaemonset "k8s.io/kubernetes/test/e2e/framework/daemonset"
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e2eresource "k8s.io/kubernetes/test/e2e/framework/resource"
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admissionapi "k8s.io/pod-security-admission/api"
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)
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const (
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controllerRevisionRetryPeriod = 1 * time.Second
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controllerRevisionRetryTimeout = 1 * time.Minute
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)
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// This test must be run in serial because it assumes the Daemon Set pods will
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// always get scheduled. If we run other tests in parallel, this may not
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// happen. In the future, running in parallel may work if we have an eviction
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// model which lets the DS controller kick out other pods to make room.
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// See http://issues.k8s.io/21767 for more details
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var _ = SIGDescribe("ControllerRevision [Serial]", func() {
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var f *framework.Framework
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ginkgo.AfterEach(func() {
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// Clean up
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daemonsets, err := f.ClientSet.AppsV1().DaemonSets(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{})
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framework.ExpectNoError(err, "unable to dump DaemonSets")
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if daemonsets != nil && len(daemonsets.Items) > 0 {
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for _, ds := range daemonsets.Items {
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ginkgo.By(fmt.Sprintf("Deleting DaemonSet %q", ds.Name))
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framework.ExpectNoError(e2eresource.DeleteResourceAndWaitForGC(f.ClientSet, extensionsinternal.Kind("DaemonSet"), f.Namespace.Name, ds.Name))
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err = wait.PollImmediate(dsRetryPeriod, dsRetryTimeout, checkRunningOnNoNodes(f, &ds))
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framework.ExpectNoError(err, "error waiting for daemon pod to be reaped")
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}
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}
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if daemonsets, err := f.ClientSet.AppsV1().DaemonSets(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{}); err == nil {
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framework.Logf("daemonset: %s", runtime.EncodeOrDie(scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...), daemonsets))
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} else {
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framework.Logf("unable to dump daemonsets: %v", err)
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}
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if pods, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{}); err == nil {
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framework.Logf("pods: %s", runtime.EncodeOrDie(scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...), pods))
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} else {
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framework.Logf("unable to dump pods: %v", err)
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}
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err = clearDaemonSetNodeLabels(f.ClientSet)
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framework.ExpectNoError(err)
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})
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f = framework.NewDefaultFramework("controllerrevisions")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelBaseline
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image := WebserverImage
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dsName := "e2e-" + utilrand.String(5) + "-daemon-set"
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var ns string
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var c clientset.Interface
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ginkgo.BeforeEach(func() {
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ns = f.Namespace.Name
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c = f.ClientSet
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updatedNS, err := patchNamespaceAnnotations(c, ns)
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framework.ExpectNoError(err)
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ns = updatedNS.Name
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err = clearDaemonSetNodeLabels(c)
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framework.ExpectNoError(err)
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})
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ginkgo.It("should manage the lifecycle of a ControllerRevision", func() {
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csAppsV1 := f.ClientSet.AppsV1()
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dsLabel := map[string]string{"daemonset-name": dsName}
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dsLabelSelector := labels.SelectorFromSet(dsLabel).String()
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ginkgo.By(fmt.Sprintf("Creating DaemonSet %q", dsName))
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testDaemonset, err := csAppsV1.DaemonSets(ns).Create(context.TODO(), newDaemonSetWithLabel(dsName, image, dsLabel), metav1.CreateOptions{})
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framework.ExpectNoError(err)
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ginkgo.By("Check that daemon pods launch on every node of the cluster.")
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err = wait.PollImmediate(dsRetryPeriod, dsRetryTimeout, checkRunningOnAllNodes(f, testDaemonset))
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framework.ExpectNoError(err, "error waiting for daemon pod to start")
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err = e2edaemonset.CheckDaemonStatus(f, dsName)
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framework.ExpectNoError(err)
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ginkgo.By(fmt.Sprintf("Confirm DaemonSet %q successfully created with %q label", dsName, dsLabelSelector))
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dsList, err := csAppsV1.DaemonSets("").List(context.TODO(), metav1.ListOptions{LabelSelector: dsLabelSelector})
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framework.ExpectNoError(err, "failed to list Daemon Sets")
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framework.ExpectEqual(len(dsList.Items), 1, "filtered list wasn't found")
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ds, err := c.AppsV1().DaemonSets(ns).Get(context.TODO(), dsName, metav1.GetOptions{})
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framework.ExpectNoError(err)
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// Listing across all namespaces to verify api endpoint: listAppsV1ControllerRevisionForAllNamespaces
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ginkgo.By(fmt.Sprintf("Listing all ControllerRevisions with label %q", dsLabelSelector))
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revs, err := csAppsV1.ControllerRevisions("").List(context.TODO(), metav1.ListOptions{LabelSelector: dsLabelSelector})
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framework.ExpectNoError(err, "Failed to list ControllerRevision: %v", err)
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framework.ExpectEqual(len(revs.Items), 1, "Failed to find any controllerRevisions")
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// Locate the current ControllerRevision from the list
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var initialRevision *appsv1.ControllerRevision
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rev := revs.Items[0]
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oref := rev.OwnerReferences[0]
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if oref.Kind == "DaemonSet" && oref.UID == ds.UID {
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framework.Logf("Located ControllerRevision: %q", rev.Name)
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initialRevision, err = csAppsV1.ControllerRevisions(ns).Get(context.TODO(), rev.Name, metav1.GetOptions{})
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framework.ExpectNoError(err, "failed to lookup ControllerRevision: %v", err)
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framework.ExpectNotEqual(initialRevision, nil, "failed to lookup ControllerRevision: %v", initialRevision)
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}
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ginkgo.By(fmt.Sprintf("Patching ControllerRevision %q", initialRevision.Name))
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payload := "{\"metadata\":{\"labels\":{\"" + initialRevision.Name + "\":\"patched\"}}}"
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patchedControllerRevision, err := csAppsV1.ControllerRevisions(ns).Patch(context.TODO(), initialRevision.Name, types.StrategicMergePatchType, []byte(payload), metav1.PatchOptions{})
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framework.ExpectNoError(err, "failed to patch ControllerRevision %s in namespace %s", initialRevision.Name, ns)
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framework.ExpectEqual(patchedControllerRevision.Labels[initialRevision.Name], "patched", "Did not find 'patched' label for this ControllerRevision. Current labels: %v", patchedControllerRevision.Labels)
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framework.Logf("%s has been patched", patchedControllerRevision.Name)
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ginkgo.By("Create a new ControllerRevision")
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newHash, newName := hashAndNameForDaemonSet(ds)
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newRevision := &appsv1.ControllerRevision{
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ObjectMeta: metav1.ObjectMeta{
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Name: newName,
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Namespace: ds.Namespace,
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Labels: labelsutil.CloneAndAddLabel(ds.Spec.Template.Labels, appsv1.DefaultDaemonSetUniqueLabelKey, newHash),
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Annotations: ds.Annotations,
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OwnerReferences: []metav1.OwnerReference{*metav1.NewControllerRef(ds, appsv1.SchemeGroupVersion.WithKind("DaemonSet"))},
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},
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Data: initialRevision.Data,
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Revision: initialRevision.Revision + 1,
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}
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newControllerRevision, err := csAppsV1.ControllerRevisions(ns).Create(context.TODO(), newRevision, metav1.CreateOptions{})
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framework.ExpectNoError(err, "Failed to create ControllerRevision: %v", err)
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framework.Logf("Created ControllerRevision: %s", newControllerRevision.Name)
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ginkgo.By("Confirm that there are two ControllerRevisions")
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err = wait.PollImmediate(controllerRevisionRetryPeriod, controllerRevisionRetryTimeout, checkControllerRevisionListQuantity(f, dsLabelSelector, 2))
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framework.ExpectNoError(err, "failed to count required ControllerRevisions")
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ginkgo.By(fmt.Sprintf("Deleting ControllerRevision %q", initialRevision.Name))
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err = csAppsV1.ControllerRevisions(ns).Delete(context.TODO(), initialRevision.Name, metav1.DeleteOptions{})
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framework.ExpectNoError(err, "Failed to delete ControllerRevision: %v", err)
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ginkgo.By("Confirm that there is only one ControllerRevision")
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err = wait.PollImmediate(controllerRevisionRetryPeriod, controllerRevisionRetryTimeout, checkControllerRevisionListQuantity(f, dsLabelSelector, 1))
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framework.ExpectNoError(err, "failed to count required ControllerRevisions")
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listControllerRevisions, err := csAppsV1.ControllerRevisions(ns).List(context.TODO(), metav1.ListOptions{})
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currentControllerRevision := listControllerRevisions.Items[0]
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ginkgo.By(fmt.Sprintf("Updating ControllerRevision %q", currentControllerRevision.Name))
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var updatedControllerRevision *appsv1.ControllerRevision
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err = retry.RetryOnConflict(retry.DefaultRetry, func() error {
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updatedControllerRevision, err = csAppsV1.ControllerRevisions(ns).Get(context.TODO(), currentControllerRevision.Name, metav1.GetOptions{})
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framework.ExpectNoError(err, "Unable to get ControllerRevision %s", currentControllerRevision.Name)
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updatedControllerRevision.Labels[currentControllerRevision.Name] = "updated"
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updatedControllerRevision, err = csAppsV1.ControllerRevisions(ns).Update(context.TODO(), updatedControllerRevision, metav1.UpdateOptions{})
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return err
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})
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framework.ExpectNoError(err, "failed to update ControllerRevision in namespace: %s", ns)
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framework.ExpectEqual(updatedControllerRevision.Labels[currentControllerRevision.Name], "updated", "Did not find 'updated' label for this ControllerRevision. Current labels: %v", currentControllerRevision.Labels)
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framework.Logf("%s has been updated", updatedControllerRevision.Name)
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ginkgo.By("Generate another ControllerRevision by patching the Daemonset")
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patch := fmt.Sprintf(`{"spec":{"template":{"spec":{"terminationGracePeriodSeconds": %d}}},"updateStrategy":{"type":"RollingUpdate"}}`, 1)
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_, err = c.AppsV1().DaemonSets(ns).Patch(context.TODO(), dsName, types.StrategicMergePatchType, []byte(patch), metav1.PatchOptions{})
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framework.ExpectNoError(err, "error patching daemon set")
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ginkgo.By("Confirm that there are two ControllerRevisions")
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err = wait.PollImmediate(controllerRevisionRetryPeriod, controllerRevisionRetryTimeout, checkControllerRevisionListQuantity(f, dsLabelSelector, 2))
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framework.ExpectNoError(err, "failed to count required ControllerRevisions")
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updatedLabel := map[string]string{updatedControllerRevision.Name: "updated"}
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updatedLabelSelector := labels.SelectorFromSet(updatedLabel).String()
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ginkgo.By(fmt.Sprintf("Removing a ControllerRevision via 'DeleteCollection' with labelSelector: %q", updatedLabelSelector))
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err = csAppsV1.ControllerRevisions(ns).DeleteCollection(context.TODO(), metav1.DeleteOptions{}, metav1.ListOptions{LabelSelector: updatedLabelSelector})
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framework.ExpectNoError(err, "Failed to delete ControllerRevision: %v", err)
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ginkgo.By("Confirm that there is only one ControllerRevision")
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err = wait.PollImmediate(controllerRevisionRetryPeriod, controllerRevisionRetryTimeout, checkControllerRevisionListQuantity(f, dsLabelSelector, 1))
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framework.ExpectNoError(err, "failed to count required ControllerRevisions")
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list, err := csAppsV1.ControllerRevisions(ns).List(context.TODO(), metav1.ListOptions{})
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framework.ExpectNoError(err, "failed to list ControllerRevision")
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framework.ExpectEqual(list.Items[0].Revision, int64(3), "failed to find the expected revision for the Controller")
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framework.Logf("ControllerRevision %q has revision %d", list.Items[0].Name, list.Items[0].Revision)
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})
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})
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func checkControllerRevisionListQuantity(f *framework.Framework, label string, quantity int) func() (bool, error) {
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return func() (bool, error) {
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var err error
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framework.Logf("Requesting list of ControllerRevisions to confirm quantity")
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list, err := f.ClientSet.AppsV1().ControllerRevisions(f.Namespace.Name).List(context.TODO(), metav1.ListOptions{
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LabelSelector: label})
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if err != nil {
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return false, err
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}
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if len(list.Items) != quantity {
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return false, nil
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}
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framework.Logf("Found %d ControllerRevisions", quantity)
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return true, nil
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}
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}
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func hashAndNameForDaemonSet(ds *appsv1.DaemonSet) (string, string) {
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hash := fmt.Sprint(controller.ComputeHash(&ds.Spec.Template, ds.Status.CollisionCount))
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name := ds.Name + "-" + hash
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return hash, name
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}
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