Support pause/unpause schedules

Support pause/unpause schedule

Fixes #2363

Signed-off-by: Wenkai Yin(尹文开) <yinw@vmware.com>

pkg/controller/gc_controller.go

@@ -25,6 +25,7 @@ import (
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/util/clock"
 	ctrl "sigs.k8s.io/controller-runtime"
+	"sigs.k8s.io/controller-runtime/pkg/builder"
 	"sigs.k8s.io/controller-runtime/pkg/client"
 	"sigs.k8s.io/controller-runtime/pkg/event"
 	"sigs.k8s.io/controller-runtime/pkg/predicate"
@@ -75,8 +76,7 @@ func NewGCReconciler(
 func (c *gcReconciler) SetupWithManager(mgr ctrl.Manager) error {
 	s := kube.NewPeriodicalEnqueueSource(c.logger, mgr.GetClient(), &velerov1api.BackupList{}, c.frequency, kube.PeriodicalEnqueueSourceOption{})
 	return ctrl.NewControllerManagedBy(mgr).
-		For(&velerov1api.Backup{}).
-		WithEventFilter(predicate.Funcs{
+		For(&velerov1api.Backup{}, builder.WithPredicates(predicate.Funcs{
 			UpdateFunc: func(ue event.UpdateEvent) bool {
 				return false
 			},
@@ -86,7 +86,7 @@ func (c *gcReconciler) SetupWithManager(mgr ctrl.Manager) error {
 			GenericFunc: func(ge event.GenericEvent) bool {
 				return false
 			},
-		}).
+		})).
 		Watches(s, nil).
 		Complete(c)
 }