k8s.io/kubernetes@v1.29.3/test/e2e_node/volume_manager_test.go (about) 1 /* 2 Copyright 2016 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package e2enode 18 19 import ( 20 "context" 21 "time" 22 23 v1 "k8s.io/api/core/v1" 24 metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" 25 "k8s.io/apimachinery/pkg/util/uuid" 26 "k8s.io/kubernetes/test/e2e/framework" 27 e2epod "k8s.io/kubernetes/test/e2e/framework/pod" 28 admissionapi "k8s.io/pod-security-admission/api" 29 30 "fmt" 31 32 "github.com/onsi/ginkgo/v2" 33 ) 34 35 var _ = SIGDescribe("Kubelet Volume Manager", func() { 36 f := framework.NewDefaultFramework("kubelet-volume-manager") 37 f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged 38 ginkgo.Describe("Volume Manager", func() { 39 ginkgo.Context("On termination of pod with memory backed volume", func() { 40 f.It("should remove the volume from the node", f.WithNodeConformance(), func(ctx context.Context) { 41 var ( 42 memoryBackedPod *v1.Pod 43 volumeName string 44 ) 45 ginkgo.By("Creating a pod with a memory backed volume that exits success without restart", func() { 46 volumeName = "memory-volume" 47 memoryBackedPod = e2epod.NewPodClient(f).Create(ctx, &v1.Pod{ 48 ObjectMeta: metav1.ObjectMeta{ 49 Name: "pod" + string(uuid.NewUUID()), 50 Namespace: f.Namespace.Name, 51 }, 52 Spec: v1.PodSpec{ 53 RestartPolicy: v1.RestartPolicyNever, 54 Containers: []v1.Container{ 55 { 56 Image: busyboxImage, 57 Name: "container" + string(uuid.NewUUID()), 58 Command: []string{"sh", "-c", "echo"}, 59 VolumeMounts: []v1.VolumeMount{ 60 { 61 Name: volumeName, 62 MountPath: "/tmp", 63 }, 64 }, 65 }, 66 }, 67 Volumes: []v1.Volume{ 68 { 69 Name: volumeName, 70 VolumeSource: v1.VolumeSource{ 71 EmptyDir: &v1.EmptyDirVolumeSource{Medium: v1.StorageMediumMemory}, 72 }, 73 }, 74 }, 75 }, 76 }) 77 err := e2epod.WaitForPodSuccessInNamespace(ctx, f.ClientSet, memoryBackedPod.Name, f.Namespace.Name) 78 framework.ExpectNoError(err) 79 }) 80 ginkgo.By("Verifying the memory backed volume was removed from node", func() { 81 volumePath := fmt.Sprintf("/tmp/%s/volumes/kubernetes.io~empty-dir/%s", string(memoryBackedPod.UID), volumeName) 82 var err error 83 for i := 0; i < 10; i++ { 84 // need to create a new verification pod on each pass since updates 85 //to the HostPath volume aren't propogated to the pod 86 pod := e2epod.NewPodClient(f).Create(ctx, &v1.Pod{ 87 ObjectMeta: metav1.ObjectMeta{ 88 Name: "pod" + string(uuid.NewUUID()), 89 Namespace: f.Namespace.Name, 90 }, 91 Spec: v1.PodSpec{ 92 RestartPolicy: v1.RestartPolicyNever, 93 Containers: []v1.Container{ 94 { 95 Image: busyboxImage, 96 Name: "container" + string(uuid.NewUUID()), 97 Command: []string{"sh", "-c", "if [ -d " + volumePath + " ]; then exit 1; fi;"}, 98 VolumeMounts: []v1.VolumeMount{ 99 { 100 Name: "kubelet-pods", 101 MountPath: "/tmp", 102 }, 103 }, 104 }, 105 }, 106 Volumes: []v1.Volume{ 107 { 108 Name: "kubelet-pods", 109 VolumeSource: v1.VolumeSource{ 110 // TODO: remove hardcoded kubelet volume directory path 111 // framework.TestContext.KubeVolumeDir is currently not populated for node e2e 112 HostPath: &v1.HostPathVolumeSource{Path: "/var/lib/kubelet/pods"}, 113 }, 114 }, 115 }, 116 }, 117 }) 118 err = e2epod.WaitForPodSuccessInNamespace(ctx, f.ClientSet, pod.Name, f.Namespace.Name) 119 gp := int64(1) 120 _ = e2epod.NewPodClient(f).Delete(ctx, pod.Name, metav1.DeleteOptions{GracePeriodSeconds: &gp}) 121 if err == nil { 122 break 123 } 124 <-time.After(10 * time.Second) 125 } 126 framework.ExpectNoError(err) 127 }) 128 }) 129 }) 130 }) 131 })