/* Copyright 2018 The Kubernetes Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ package storage import ( "context" "github.com/onsi/ginkgo/v2" "github.com/onsi/gomega" v1 "k8s.io/api/core/v1" storagev1 "k8s.io/api/storage/v1" "k8s.io/apimachinery/pkg/api/resource" metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" admissionapi "k8s.io/pod-security-admission/api" utilerrors "k8s.io/apimachinery/pkg/util/errors" clientset "k8s.io/client-go/kubernetes" "k8s.io/kubernetes/test/e2e/feature" "k8s.io/kubernetes/test/e2e/framework" e2edeployment "k8s.io/kubernetes/test/e2e/framework/deployment" e2enode "k8s.io/kubernetes/test/e2e/framework/node" e2epod "k8s.io/kubernetes/test/e2e/framework/pod" e2epv "k8s.io/kubernetes/test/e2e/framework/pv" e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper" "k8s.io/kubernetes/test/e2e/storage/testsuites" "k8s.io/kubernetes/test/e2e/storage/utils" ) var _ = utils.SIGDescribe("Mounted volume expand", feature.StorageProvider, func() { var ( c clientset.Interface ns string pvc *v1.PersistentVolumeClaim sc *storagev1.StorageClass nodeName string nodeKeyValueLabel map[string]string nodeLabelValue string nodeKey string ) f := framework.NewDefaultFramework("mounted-volume-expand") f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged ginkgo.BeforeEach(func(ctx context.Context) { e2eskipper.SkipUnlessProviderIs("aws", "gce") c = f.ClientSet ns = f.Namespace.Name framework.ExpectNoError(e2enode.WaitForAllNodesSchedulable(ctx, c, f.Timeouts.NodeSchedulable)) node, err := e2enode.GetRandomReadySchedulableNode(ctx, f.ClientSet) framework.ExpectNoError(err) nodeName = node.Name nodeKey = "mounted_volume_expand_" + ns nodeLabelValue = ns nodeKeyValueLabel = map[string]string{nodeKey: nodeLabelValue} e2enode.AddOrUpdateLabelOnNode(c, nodeName, nodeKey, nodeLabelValue) ginkgo.DeferCleanup(e2enode.RemoveLabelOffNode, c, nodeName, nodeKey) test := testsuites.StorageClassTest{ Name: "default", Timeouts: f.Timeouts, ClaimSize: "2Gi", AllowVolumeExpansion: true, DelayBinding: true, Parameters: make(map[string]string), } sc = testsuites.SetupStorageClass(ctx, c, newStorageClass(test, ns, "resizing")) if !*sc.AllowVolumeExpansion { framework.Failf("Class %s does not allow volume expansion", sc.Name) } pvc = e2epv.MakePersistentVolumeClaim(e2epv.PersistentVolumeClaimConfig{ ClaimSize: test.ClaimSize, StorageClassName: &(sc.Name), VolumeMode: &test.VolumeMode, }, ns) pvc, err = c.CoreV1().PersistentVolumeClaims(pvc.Namespace).Create(ctx, pvc, metav1.CreateOptions{}) framework.ExpectNoError(err, "Error creating pvc") ginkgo.DeferCleanup(func(ctx context.Context) { framework.Logf("AfterEach: Cleaning up resources for mounted volume resize") if errs := e2epv.PVPVCCleanup(ctx, c, ns, nil, pvc); len(errs) > 0 { framework.Failf("AfterEach: Failed to delete PVC and/or PV. Errors: %v", utilerrors.NewAggregate(errs)) } }) }) ginkgo.It("Should verify mounted devices can be resized", func(ctx context.Context) { pvcClaims := []*v1.PersistentVolumeClaim{pvc} // The reason we use a node selector is because we do not want pod to move to different node when pod is deleted. // Keeping pod on same node reproduces the scenario that volume might already be mounted when resize is attempted. // We should consider adding a unit test that exercises this better. ginkgo.By("Creating a deployment with selected PVC") deployment, err := e2edeployment.CreateDeployment(ctx, c, int32(1), map[string]string{"test": "app"}, nodeKeyValueLabel, ns, pvcClaims, admissionapi.LevelRestricted, "") framework.ExpectNoError(err, "Failed creating deployment %v", err) ginkgo.DeferCleanup(c.AppsV1().Deployments(ns).Delete, deployment.Name, metav1.DeleteOptions{}) // PVC should be bound at this point ginkgo.By("Checking for bound PVC") pvs, err := e2epv.WaitForPVClaimBoundPhase(ctx, c, pvcClaims, framework.ClaimProvisionTimeout) framework.ExpectNoError(err, "Failed waiting for PVC to be bound %v", err) gomega.Expect(pvs).To(gomega.HaveLen(1)) ginkgo.By("Wait for a pod from deployment to be running") podList, err := e2edeployment.GetPodsForDeployment(ctx, c, deployment) framework.ExpectNoError(err, "While getting pods from deployment") gomega.Expect(podList.Items).NotTo(gomega.BeEmpty()) pod := podList.Items[0] err = e2epod.WaitTimeoutForPodRunningInNamespace(ctx, c, pod.Name, pod.Namespace, f.Timeouts.PodStart) framework.ExpectNoError(err, "While waiting for pods to be ready") ginkgo.By("Expanding current pvc") newSize := resource.MustParse("6Gi") newPVC, err := testsuites.ExpandPVCSize(ctx, pvc, newSize, c) framework.ExpectNoError(err, "While updating pvc for more size") pvc = newPVC gomega.Expect(pvc).NotTo(gomega.BeNil()) pvcSize := pvc.Spec.Resources.Requests[v1.ResourceStorage] if pvcSize.Cmp(newSize) != 0 { framework.Failf("error updating pvc size %q", pvc.Name) } ginkgo.By("Waiting for cloudprovider resize to finish") err = testsuites.WaitForControllerVolumeResize(ctx, pvc, c, totalResizeWaitPeriod) framework.ExpectNoError(err, "While waiting for pvc resize to finish") ginkgo.By("Getting a pod from deployment") podList, err = e2edeployment.GetPodsForDeployment(ctx, c, deployment) framework.ExpectNoError(err, "While getting pods from deployment") gomega.Expect(podList.Items).NotTo(gomega.BeEmpty()) pod = podList.Items[0] ginkgo.By("Deleting the pod from deployment") err = e2epod.DeletePodWithWait(ctx, c, &pod) framework.ExpectNoError(err, "while deleting pod for resizing") ginkgo.By("Waiting for deployment to create new pod") pod, err = waitForDeploymentToRecreatePod(ctx, c, deployment) framework.ExpectNoError(err, "While waiting for pod to be recreated") ginkgo.By("Waiting for file system resize to finish") pvc, err = testsuites.WaitForFSResize(ctx, pvc, c) framework.ExpectNoError(err, "while waiting for fs resize to finish") pvcConditions := pvc.Status.Conditions gomega.Expect(pvcConditions).To(gomega.BeEmpty(), "pvc should not have conditions") }) })