ephemeral_volume.go

Documentation: k8s.io/kubernetes/test/e2e/storage

     1  /*
     2  Copyright 2018 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 storage
    18  
    19  import (
    20  	"context"
    21  	"fmt"
    22  	"strings"
    23  	"time"
    24  
    25  	v1 "k8s.io/api/core/v1"
    26  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    27  	"k8s.io/apimachinery/pkg/util/rand"
    28  	clientset "k8s.io/client-go/kubernetes"
    29  	"k8s.io/kubernetes/test/e2e/framework"
    30  	e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
    31  	"k8s.io/kubernetes/test/e2e/storage/utils"
    32  	imageutils "k8s.io/kubernetes/test/utils/image"
    33  	admissionapi "k8s.io/pod-security-admission/api"
    34  
    35  	"github.com/onsi/ginkgo/v2"
    36  )
    37  
    38  var (
    39  	volumePath = "/test-volume"
    40  	volumeName = "test-volume"
    41  )
    42  
    43  var _ = utils.SIGDescribe("Ephemeralstorage", func() {
    44  	var (
    45  		c clientset.Interface
    46  	)
    47  
    48  	f := framework.NewDefaultFramework("pv")
    49  	f.NamespacePodSecurityLevel = admissionapi.LevelBaseline
    50  
    51  	ginkgo.BeforeEach(func() {
    52  		c = f.ClientSet
    53  	})
    54  
    55  	ginkgo.Describe("When pod refers to non-existent ephemeral storage", func() {
    56  		for _, testSource := range invalidEphemeralSource("pod-ephm-test") {
    57  			testSource := testSource
    58  			ginkgo.It(fmt.Sprintf("should allow deletion of pod with invalid volume : %s", testSource.volumeType), func(ctx context.Context) {
    59  				pod := testEphemeralVolumePod(f, testSource.volumeType, testSource.source)
    60  				pod, err := c.CoreV1().Pods(f.Namespace.Name).Create(ctx, pod, metav1.CreateOptions{})
    61  				framework.ExpectNoError(err)
    62  
    63  				// Allow it to sleep for 30 seconds
    64  				time.Sleep(30 * time.Second)
    65  				framework.Logf("Deleting pod %q/%q", pod.Namespace, pod.Name)
    66  				framework.ExpectNoError(e2epod.DeletePodWithWait(ctx, c, pod))
    67  			})
    68  		}
    69  	})
    70  })
    71  
    72  type ephemeralTestInfo struct {
    73  	volumeType string
    74  	source     *v1.VolumeSource
    75  }
    76  
    77  func testEphemeralVolumePod(f *framework.Framework, volumeType string, source *v1.VolumeSource) *v1.Pod {
    78  	var (
    79  		suffix = strings.ToLower(fmt.Sprintf("%s-%s", volumeType, rand.String(4)))
    80  	)
    81  	return &v1.Pod{
    82  		ObjectMeta: metav1.ObjectMeta{
    83  			Name:      fmt.Sprintf("pod-ephm-test-%s", suffix),
    84  			Namespace: f.Namespace.Name,
    85  		},
    86  		Spec: v1.PodSpec{
    87  			Containers: []v1.Container{
    88  				{
    89  					Name:  fmt.Sprintf("test-container-subpath-%s", suffix),
    90  					Image: imageutils.GetE2EImage(imageutils.Agnhost),
    91  					VolumeMounts: []v1.VolumeMount{
    92  						{
    93  							Name:      volumeName,
    94  							MountPath: volumePath,
    95  						},
    96  					},
    97  				},
    98  			},
    99  			RestartPolicy: v1.RestartPolicyNever,
   100  			Volumes: []v1.Volume{
   101  				{
   102  					Name:         volumeName,
   103  					VolumeSource: *source,
   104  				},
   105  			},
   106  		},
   107  	}
   108  }
   109  
   110  func invalidEphemeralSource(suffix string) []ephemeralTestInfo {
   111  	testInfo := []ephemeralTestInfo{
   112  		{
   113  			volumeType: "secret",
   114  			source: &v1.VolumeSource{
   115  				Secret: &v1.SecretVolumeSource{
   116  					SecretName: fmt.Sprintf("secert-%s", suffix),
   117  				},
   118  			},
   119  		},
   120  		{
   121  			volumeType: "configmap",
   122  			source: &v1.VolumeSource{
   123  				ConfigMap: &v1.ConfigMapVolumeSource{
   124  					LocalObjectReference: v1.LocalObjectReference{
   125  						Name: fmt.Sprintf("configmap-%s", suffix),
   126  					},
   127  				},
   128  			},
   129  		},
   130  		{
   131  			volumeType: "projected",
   132  			source: &v1.VolumeSource{
   133  				Projected: &v1.ProjectedVolumeSource{
   134  					Sources: []v1.VolumeProjection{
   135  						{
   136  							Secret: &v1.SecretProjection{
   137  								LocalObjectReference: v1.LocalObjectReference{
   138  									Name: fmt.Sprintf("secret-%s", suffix),
   139  								},
   140  							},
   141  						},
   142  					},
   143  				},
   144  			},
   145  		},
   146  	}
   147  	return testInfo
   148  }
   149
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