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e2e: add a test case of ROX PVC-PVC clone

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adding a test case to test below case for RBD

* Create PVC and application
* Scale down application pod
* Create PVC-PVC ROX clone
* Try to create many pods that use the ROX PVC
* Try to write the data and verify only read
access.

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
This commit is contained in:
Madhu Rajanna 2024-10-28 10:21:47 +01:00 committed by mergify[bot]
parent a6f1af49c6
commit 98471b27fc
1 changed files with 112 additions and 1 deletions
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113
e2e/rbd.go
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@ -3235,7 +3235,7 @@ var _ = Describe("RBD", func() {
}
})
By("create ROX PVC clone and mount it to multiple pods", func() {
By("create ROX PVC clone from snapshot and mount it to multiple pods", func() {
err := createRBDSnapshotClass(f)
if err != nil {
framework.Failf("failed to create storageclass: %v", err)
@ -3375,6 +3375,117 @@ var _ = Describe("RBD", func() {
validateOmapCount(f, 0, rbdType, defaultRBDPool, volumesType)
})
By("create ROX PVC-PVC clone and mount it to multiple pods", func() {
// create PVC and bind it to an app
pvc, err := loadPVC(pvcPath)
if err != nil {
framework.Failf("failed to load PVC: %v", err)
}
pvc.Namespace = f.UniqueName
app, err := loadApp(appPath)
if err != nil {
framework.Failf("failed to load application: %v", err)
}
app.Namespace = f.UniqueName
err = createPVCAndApp("", f, pvc, app, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC and application: %v", err)
}
// validate created backend rbd images
validateRBDImageCount(f, 1, defaultRBDPool)
validateOmapCount(f, 1, rbdType, defaultRBDPool, volumesType)
// delete pod as we should not create PVC clone for in-use pvc
err = deletePod(app.Name, app.Namespace, f.ClientSet, deployTimeout)
if err != nil {
framework.Failf("failed to delete application: %v", err)
}
// create ROX clone PVC from parent PVC
smartClonePVC, err := loadPVC(pvcSmartClonePath)
if err != nil {
framework.Failf("failed to load smart clone PVC: %v", err)
}
smartClonePVC.Namespace = f.UniqueName
smartClonePVC.Spec.DataSource.Name = pvc.Name
smartClonePVC.Spec.AccessModes = []v1.PersistentVolumeAccessMode{v1.ReadOnlyMany}
err = createPVCAndvalidatePV(f.ClientSet, smartClonePVC, deployTimeout)
if err != nil {
framework.Failf("failed to create PVC: %v", err)
}
// validate created backend rbd images
// parent pvc + tempClone + clone
validateRBDImageCount(f, 3, defaultRBDPool)
validateOmapCount(f, 2, rbdType, defaultRBDPool, volumesType)
appClone, err := loadApp(appClonePath)
if err != nil {
framework.Failf("failed to load application: %v", err)
}
totalCount := 3
appClone.Namespace = f.UniqueName
appClone.Spec.Volumes[0].PersistentVolumeClaim.ClaimName = smartClonePVC.Name
for i := range totalCount {
name := fmt.Sprintf("%s%d", f.UniqueName, i)
label := map[string]string{
"app": name,
}
appClone.Labels = label
appClone.Name = name
err = createApp(f.ClientSet, appClone, deployTimeout)
if err != nil {
framework.Failf("failed to create application: %v", err)
}
}
for i := range totalCount {
name := fmt.Sprintf("%s%d", f.UniqueName, i)
opt := metav1.ListOptions{
LabelSelector: "app=" + name,
}
filePath := appClone.Spec.Containers[0].VolumeMounts[0].MountPath + "/test"
_, stdErr := execCommandInPodAndAllowFail(
f,
"echo 'Hello World' > "+filePath,
appClone.Namespace,
&opt)
readOnlyErr := fmt.Sprintf("cannot create %s: Read-only file system", filePath)
if !strings.Contains(stdErr, readOnlyErr) {
framework.Failf(stdErr)
}
}
// delete app
for i := range totalCount {
name := fmt.Sprintf("%s%d", f.UniqueName, i)
appClone.Name = name
err = deletePod(appClone.Name, appClone.Namespace, f.ClientSet, deployTimeout)
if err != nil {
framework.Failf("failed to delete application: %v", err)
}
}
// delete PVC clone
err = deletePVCAndValidatePV(f.ClientSet, smartClonePVC, deployTimeout)
if err != nil {
framework.Failf("failed to delete PVC: %v", err)
}
// delete parent pvc
err = deletePVCAndValidatePV(f.ClientSet, pvc, deployTimeout)
if err != nil {
framework.Failf("failed to delete PVC: %v", err)
}
// validate created backend rbd images
validateRBDImageCount(f, 0, defaultRBDPool)
validateOmapCount(f, 0, rbdType, defaultRBDPool, volumesType)
})
By("validate PVC mounting if snapshot and parent PVC are deleted", func() {
err := createRBDSnapshotClass(f)
if err != nil {