issue 7972: sync the backupPVC deletion in expose clean up

Signed-off-by: Lyndon-Li <[email protected]>

pkg/exposer/csi_snapshot.go

@@ -264,6 +264,8 @@ func (e *csiSnapshotExposer) PeekExposed(ctx context.Context, ownerObject corev1
 	return nil
 }
 
+const cleanUpTimeout = time.Minute
+
 func (e *csiSnapshotExposer) CleanUp(ctx context.Context, ownerObject corev1.ObjectReference, vsName string, sourceNamespace string) {
 	backupPodName := ownerObject.Name
 	backupPVCName := ownerObject.Name
@@ -272,6 +274,11 @@ func (e *csiSnapshotExposer) CleanUp(ctx context.Context, ownerObject corev1.Obj
 	kube.DeletePodIfAny(ctx, e.kubeClient.CoreV1(), backupPodName, ownerObject.Namespace, e.log)
 	kube.DeletePVAndPVCIfAny(ctx, e.kubeClient.CoreV1(), backupPVCName, ownerObject.Namespace, e.log)
 
+	err := kube.EnsureDeletePVC(ctx, e.kubeClient.CoreV1(), backupPVCName, ownerObject.Namespace, cleanUpTimeout)
+	if err != nil {
+		e.log.WithError(err).WithField("backupPVC", backupPVCName).Warn("failed to delete backupPVC on clean up")
+	}
+
 	csi.DeleteVolumeSnapshotIfAny(ctx, e.csiSnapshotClient, backupVSName, ownerObject.Namespace, e.log)
 	csi.DeleteVolumeSnapshotIfAny(ctx, e.csiSnapshotClient, vsName, sourceNamespace, e.log)
 }