layer1: add managed watcher config

pkg/utils/namespace_manager.go

@@ -110,16 +110,20 @@ func NewWatcherNamespaceManager(ctx context.Context, namespaces []string, source
 	return manager, err
 }
 
-func PrepareManagedNamespaceWatcher(ctx context.Context, logger *zap.Logger, component string, namespaces []string, removalStrategy NamespaceRemovalStrategy, subscriber NamespaceSubscriber) (NamespaceManager, k8sCache.ResourceEventHandlerFuncs, error) {
-	manager, err := NewWatcherNamespaceManager(ctx, namespaces, NamespaceSourceEnv, time.Now().UTC(), subscriber)
-	handlers := NewNamespaceWatcherEventHandlers(ctx, logger, component, manager, removalStrategy)
-	LogNamespaceManagerSummary(logger, component+": prepared namespace manager", manager.Summary())
+func PrepareManagedNamespaceWatcher(ctx context.Context, logger *zap.Logger, config ManagedNamespaceWatcherConfig) (NamespaceManager, k8sCache.ResourceEventHandlerFuncs, error) {
+	strategy := config.RemovalStrategy
+	if strategy == "" {
+		strategy = NamespaceRemovalStrategyTrackOnly
+	}
+	manager, err := NewWatcherNamespaceManager(ctx, config.Namespaces, NamespaceSourceEnv, time.Now().UTC(), config.Subscriber)
+	handlers := NewNamespaceWatcherEventHandlers(ctx, logger, config.Component, manager, strategy)
+	LogNamespaceManagerSummary(logger, config.Component+": prepared namespace manager", manager.Summary())
 	return manager, handlers, err
 }
 
-func RunManagedNamespaceWatcher(ctx context.Context, logger *zap.Logger, component string, kubeClient kubernetes.Interface, mgr managerPkg.Interface, namespaces []string, removalStrategy NamespaceRemovalStrategy, subscriber NamespaceSubscriber) (NamespaceManager, error) {
-	manager, handlers, err := PrepareManagedNamespaceWatcher(ctx, logger, component, namespaces, removalStrategy, subscriber)
-	StartManagedNamespaceWatcher(ctx, logger, component, kubeClient, mgr, handlers)
+func RunManagedNamespaceWatcher(ctx context.Context, logger *zap.Logger, kubeClient kubernetes.Interface, mgr managerPkg.Interface, config ManagedNamespaceWatcherConfig) (NamespaceManager, error) {
+	manager, handlers, err := PrepareManagedNamespaceWatcher(ctx, logger, config)
+	StartManagedNamespaceWatcher(ctx, logger, config.Component, kubeClient, mgr, handlers)
 	return manager, err
 }