feat: Add concurrent backups configuration to backup reconciler

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
Signed-off-by: Scott Seago <sseago@redhat.com>

pkg/cmd/server/server.go

@@ -669,6 +669,7 @@ func (s *server) runControllers(defaultVolumeSnapshotLocations map[string]string
 			s.config.MaxConcurrentK8SConnections,
 			s.config.DefaultSnapshotMoveData,
 			s.config.ItemBlockWorkerCount,
+			s.config.ConcurrentBackups,
 			s.crClient,
 		).SetupWithManager(s.mgr); err != nil {
 			s.logger.Fatal(err, "unable to create controller", "controller", constant.ControllerBackup)

pkg/controller/backup_controller.go

@@ -105,6 +105,7 @@ type backupReconciler struct {
 	defaultSnapshotMoveData     bool
 	globalCRClient              kbclient.Client
 	itemBlockWorkerCount        int
+	concurrentBackups           int
 	workerPool                  *pkgbackup.ItemBlockWorkerPool
 }
 
@@ -132,6 +133,7 @@ func NewBackupReconciler(
 	maxConcurrentK8SConnections int,
 	defaultSnapshotMoveData bool,
 	itemBlockWorkerCount int,
+	concurrentBackups int,
 	globalCRClient kbclient.Client,
 ) *backupReconciler {
 	b := &backupReconciler{
@@ -159,6 +161,7 @@ func NewBackupReconciler(
 		maxConcurrentK8SConnections: maxConcurrentK8SConnections,
 		defaultSnapshotMoveData:     defaultSnapshotMoveData,
 		itemBlockWorkerCount:        itemBlockWorkerCount,
+		concurrentBackups:           concurrentBackups,
 		globalCRClient:              globalCRClient,
 		workerPool:                  pkgbackup.StartItemBlockWorkerPool(ctx, itemBlockWorkerCount, logger),
 	}