clean temp vsclass for dm restore (#197)

pkg/controller/backup_controller.go

@@ -22,13 +22,13 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/vmware-tanzu/velero/pkg/datamover"
 	"io"
 	"io/ioutil"
 	"os"
 	"sync"
 	"time"
 
+	"github.com/vmware-tanzu/velero/pkg/datamover"
 	jsonpatch "github.com/evanphx/json-patch"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -656,6 +656,12 @@ func (c *backupController) runBackup(backup *pkgbackup.Request) error {
 			if err != nil {
 				backupLog.Error(err)
 			}
+
+			// delete temp VSClass created for data mover restore
+			err := datamover.DeleteTempVSClass(backup.Name, c.volumeSnapshotClassLister, c.volumeSnapshotClient)
+			if err != nil {
+				backupLog.Error(err)
+			}
 		}
 
 		vsClassSet := sets.NewString()

pkg/datamover/datamover.go

@@ -9,9 +9,12 @@ import (
 
 	"github.com/apex/log"
 	snapmoverv1alpha1 "github.com/konveyor/volume-snapshot-mover/api/v1alpha1"
+	snapshotterClientSet "github.com/kubernetes-csi/external-snapshotter/client/v4/clientset/versioned"
+	snapshotv1listers "github.com/kubernetes-csi/external-snapshotter/client/v4/listers/volumesnapshot/v1"
 	"github.com/pkg/errors"
 	velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
 	"golang.org/x/sync/errgroup"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/util/wait"
 	kbclient "sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/client/config"
@@ -118,3 +121,19 @@ func WaitForDataMoverBackupToComplete(backupName string) error {
 	}
 	return nil
 }
+
+func DeleteTempVSClass(backupName string, tempVS snapshotv1listers.VolumeSnapshotClassLister, client *snapshotterClientSet.Clientset) error {
+
+	tempVSClass, err := tempVS.Get(fmt.Sprintf("%s-snapclass", backupName))
+	if err != nil {
+		log.Errorf("failed to get temp vsClass %v", tempVSClass.Name)
+		return err
+	}
+
+	err = client.SnapshotV1().VolumeSnapshotClasses().Delete(context.TODO(), tempVSClass.Name, metav1.DeleteOptions{})
+	if err != nil {
+		log.Errorf("failed to delete temp vsClass %v", tempVSClass.Name)
+		return err
+	}
+	return nil
+}