github.com/jmclong/azuredisk-csi-driver@v0.7.0/test/e2e/testsuites/dynamically_provisioned_volume_snapshot_tester.go (about)

     1  /*
     2  Copyright 2020 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 testsuites
    18  
    19  import (
    20  	"sigs.k8s.io/azuredisk-csi-driver/test/e2e/driver"
    21  
    22  	"github.com/onsi/ginkgo"
    23  	v1 "k8s.io/api/core/v1"
    24  	clientset "k8s.io/client-go/kubernetes"
    25  	restclientset "k8s.io/client-go/rest"
    26  )
    27  
    28  // DynamicallyProvisionedVolumeSnapshotTest will provision required StorageClass(es),VolumeSnapshotClass(es), PVC(s) and Pod(s)
    29  // Waiting for the PV provisioner to create a new PV
    30  // Testing if the Pod(s) can write and read to mounted volumes
    31  // Create a snapshot, validate the data is still on the disk, and then write and read to it again
    32  // And finally delete the snapshot
    33  // This test only supports a single volume
    34  type DynamicallyProvisionedVolumeSnapshotTest struct {
    35  	CSIDriver       driver.PVTestDriver
    36  	Pod             PodDetails
    37  	PodWithSnapshot PodDetails
    38  }
    39  
    40  func (t *DynamicallyProvisionedVolumeSnapshotTest) Run(client clientset.Interface, restclient restclientset.Interface, namespace *v1.Namespace) {
    41  	tpod := NewTestPod(client, namespace, t.Pod.Cmd, t.Pod.IsWindows)
    42  	volume := t.Pod.Volumes[0]
    43  	tpvc, pvcCleanup := volume.SetupDynamicPersistentVolumeClaim(client, namespace, t.CSIDriver)
    44  	for i := range pvcCleanup {
    45  		defer pvcCleanup[i]()
    46  	}
    47  	tpod.SetupVolume(tpvc.persistentVolumeClaim, volume.VolumeMount.NameGenerate+"1", volume.VolumeMount.MountPathGenerate+"1", volume.VolumeMount.ReadOnly)
    48  
    49  	ginkgo.By("deploying the pod")
    50  	tpod.Create()
    51  	defer tpod.Cleanup()
    52  	ginkgo.By("checking that the pod's command exits with no error")
    53  	tpod.WaitForSuccess()
    54  
    55  	ginkgo.By("creating volume snapshot class")
    56  	tvsc, cleanup := CreateVolumeSnapshotClass(restclient, namespace, t.CSIDriver)
    57  	defer cleanup()
    58  
    59  	ginkgo.By("taking snapshots")
    60  	snapshot := tvsc.CreateSnapshot(tpvc.persistentVolumeClaim)
    61  	defer tvsc.DeleteSnapshot(snapshot)
    62  	tvsc.ReadyToUse(snapshot)
    63  
    64  	snapshotVolume := volume
    65  	snapshotVolume.DataSource = &DataSource{
    66  		Kind: VolumeSnapshotKind,
    67  		Name: snapshot.Name,
    68  	}
    69  	t.PodWithSnapshot.Volumes = []VolumeDetails{snapshotVolume}
    70  	tPodWithSnapshot, tPodWithSnapshotCleanup := t.PodWithSnapshot.SetupWithDynamicVolumes(client, namespace, t.CSIDriver)
    71  	for i := range tPodWithSnapshotCleanup {
    72  		defer tPodWithSnapshotCleanup[i]()
    73  	}
    74  	ginkgo.By("deploying a second pod with a volume restored from the snapshot")
    75  	tPodWithSnapshot.Create()
    76  	defer tPodWithSnapshot.Cleanup()
    77  	ginkgo.By("checking that the pod's command exits with no error")
    78  	tPodWithSnapshot.WaitForSuccess()
    79  }