e2e: add timeout for pvc deletion in ephemeral e2e

this commit adds the timeout to wait for pvc
deletion after the deletion of pod in test.

Signed-off-by: riya-singhal31 <rsinghal@redhat.com>

e2e/cephfs.go

@@ -395,11 +395,19 @@ var _ = Describe(cephfsType, func() {
 				}
 				validateSubvolumeCount(f, 1, fileSystemName, subvolumegroup)
 				validateOmapCount(f, 1, cephfsType, metadataPool, volumesType)
+				pvcName := app.Spec.Volumes[0].Name
 				// delete pod
 				err = deletePod(app.Name, app.Namespace, f.ClientSet, deployTimeout)
 				if err != nil {
 					framework.Failf("failed to delete application: %v", err)
 				}
+
+				// wait for the associated PVC to be deleted
+				err = waitForPVCToBeDeleted(f.ClientSet, app.Namespace, pvcName, deployTimeout)
+				if err != nil {
+					framework.Failf("failed to wait for PVC deletion: %v", err)
+				}
+
 				validateSubvolumeCount(f, 0, fileSystemName, subvolumegroup)
 				validateOmapCount(f, 0, cephfsType, metadataPool, volumesType)
 				err = deleteResource(cephFSExamplePath + "storageclass.yaml")

e2e/pvc.go

@@ -430,3 +430,35 @@ func getMetricsForPVC(f *framework.Framework, pvc *v1.PersistentVolumeClaim, t i
 		return false, nil
 	})
 }
+
+func waitForPVCToBeDeleted(c kubernetes.Interface, namespace, pvcName string, t int) error {
+	timeout := time.Duration(t) * time.Minute
+	ctx := context.TODO()
+	start := time.Now()
+
+	return wait.PollUntilContextTimeout(ctx, poll, timeout, true, func(ctx context.Context) (bool, error) {
+		pvc, err := c.CoreV1().PersistentVolumeClaims(namespace).Get(ctx, pvcName, metav1.GetOptions{})
+		// Check that the PVC is really deleted.
+		framework.Logf(
+			"waiting for PVC %s in state %s to be deleted (%d seconds elapsed)",
+			pvcName,
+			pvc.Status.String(),
+			int(time.Since(start).Seconds()))
+		if err == nil {
+			framework.Logf("PVC %s (status: %s) has not been deleted yet, rechecking...", pvcName, pvc.Status)
+
+			return false, nil
+		}
+		if isRetryableAPIError(err) {
+			framework.Logf("failed to verify deletion of PVC %s (status: %s): %v", pvcName, pvc.Status, err)
+
+			return false, nil
+		}
+		if !apierrs.IsNotFound(err) {
+			return false, fmt.Errorf("get on deleted PVC %v failed with error other than \"not found\": %w", pvcName, err)
+		}
+
+		// PVC has been successfully deleted
+		return true, nil
+	})
+}

e2e/rbd.go

@@ -813,10 +813,18 @@ var _ = Describe("RBD", func() {
 				// validate created backend rbd images
 				validateRBDImageCount(f, 1, defaultRBDPool)
 				validateOmapCount(f, 1, rbdType, defaultRBDPool, volumesType)
+				pvcName := app.Spec.Volumes[0].Name
 				err = deletePod(app.Name, app.Namespace, f.ClientSet, deployTimeout)
 				if err != nil {
 					framework.Failf("failed to delete application: %v", err)
 				}
+
+				// wait for the associated PVC to be deleted
+				err = waitForPVCToBeDeleted(f.ClientSet, app.Namespace, pvcName, deployTimeout)
+				if err != nil {
+					framework.Failf("failed to wait for PVC deletion: %v", err)
+				}
+
 				// validate created backend rbd images
 				validateRBDImageCount(f, 0, defaultRBDPool)
 				validateOmapCount(f, 0, rbdType, defaultRBDPool, volumesType)