Revert "Migrate backup sync controller from code-generator to kubebuilder (#4423)"

This reverts commit 5aaeb3ebbe.

pkg/cmd/server/server.go

@@ -589,6 +589,28 @@ func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string
 
 	csiVSLister, csiVSCLister := s.getCSISnapshotListers()
 
+	backupSyncControllerRunInfo := func() controllerRunInfo {
+		backupSyncContoller := controller.NewBackupSyncController(
+			s.veleroClient.VeleroV1(),
+			s.mgr.GetClient(),
+			s.veleroClient.VeleroV1(),
+			s.sharedInformerFactory.Velero().V1().Backups().Lister(),
+			s.config.backupSyncPeriod,
+			s.namespace,
+			s.csiSnapshotClient,
+			s.kubeClient,
+			s.config.defaultBackupLocation,
+			newPluginManager,
+			backupStoreGetter,
+			s.logger,
+		)
+
+		return controllerRunInfo{
+			controller: backupSyncContoller,
+			numWorkers: defaultControllerWorkers,
+		}
+	}
+
 	backupTracker := controller.NewBackupTracker()
 
 	backupControllerRunInfo := func() controllerRunInfo {
@@ -747,6 +769,7 @@ func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string
 	}
 
 	enabledControllers := map[string]func() controllerRunInfo{
+		controller.BackupSync:        backupSyncControllerRunInfo,
 		controller.Backup:            backupControllerRunInfo,
 		controller.Schedule:          scheduleControllerRunInfo,
 		controller.GarbageCollection: gcControllerRunInfo,
@@ -758,7 +781,6 @@ func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string
 	enabledRuntimeControllers := make(map[string]struct{})
 	enabledRuntimeControllers[controller.ServerStatusRequest] = struct{}{}
 	enabledRuntimeControllers[controller.DownloadRequest] = struct{}{}
-	enabledRuntimeControllers[controller.BackupSync] = struct{}{}
 
 	if s.config.restoreOnly {
 		s.logger.Info("Restore only mode - not starting the backup, schedule, delete-backup, or GC controllers")
@@ -849,28 +871,6 @@ func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string
 		}
 	}
 
-	if _, ok := enabledRuntimeControllers[controller.BackupSync]; ok {
-		syncPeriod := s.config.backupSyncPeriod
-		if syncPeriod <= 0 {
-			syncPeriod = time.Minute
-		}
-
-		r := controller.BackupSyncReconciler{
-			Client:                  s.mgr.GetClient(),
-			PodVolumeBackupClient:   s.veleroClient.VeleroV1(),
-			BackupLister:            s.sharedInformerFactory.Velero().V1().Backups().Lister(),
-			BackupClient:            s.veleroClient.VeleroV1(),
-			Namespace:               s.namespace,
-			DefaultBackupSyncPeriod: syncPeriod,
-			NewPluginManager:        newPluginManager,
-			BackupStoreGetter:       backupStoreGetter,
-			Logger:                  s.logger,
-		}
-		if err := r.SetupWithManager(s.mgr); err != nil {
-			s.logger.Fatal(err, " unable to create controller ", "controller ", controller.BackupSync)
-		}
-	}
-
 	// TODO(2.0): presuming all controllers and resources are converted to runtime-controller
 	// by v2.0, the block from this line and including the `s.mgr.Start() will be
 	// deprecated, since the manager auto-starts all the caches. Until then, we need to start the