Disable placement scheduling (#80)

* Disable placement scheduling

Signed-off-by: clyang82 <chuyang@redhat.com>

* Update to use annontation defined in api

Signed-off-by: clyang82 <chuyang@redhat.com>

* sync to vendor folder

Signed-off-by: clyang82 <chuyang@redhat.com>

* run go mod tidy

Signed-off-by: clyang82 <chuyang@redhat.com>

* sync-up deploy/hub

Signed-off-by: clyang82 <chuyang@redhat.com>

Signed-off-by: clyang82 <chuyang@redhat.com>

pkg/controllers/scheduling/scheduling_controller.go

@@ -263,6 +263,11 @@ func (c *schedulingController) syncPlacement(ctx context.Context, syncCtx factor
 		return nil
 	}
 
+	// no work if placement has cluster.open-cluster-management.io/experimental-scheduling-disable: "true" annotation
+	if value, ok := placement.GetAnnotations()[clusterapiv1beta1.PlacementDisableAnnotation]; ok && value == "true" {
+		return nil
+	}
+
 	// get all valid clustersetbindings in the placement namespace
 	bindings, err := c.getValidManagedClusterSetBindings(placement.Namespace)
 	if err != nil {

pkg/controllers/scheduling/scheduling_controller_test.go

@@ -176,6 +176,22 @@ func TestSchedulingController_sync(t *testing.T) {
 			},
 			validateActions: testinghelpers.AssertNoActions,
 		},
+		{
+			name: "placement schedule controller is disabled",
+			placement: testinghelpers.NewPlacementWithAnnotations(placementNamespace, placementName,
+				map[string]string{
+					clusterapiv1beta1.PlacementDisableAnnotation: "true",
+				}).Build(),
+			scheduleResult: &scheduleResult{
+				feasibleClusters: []*clusterapiv1.ManagedCluster{
+					testinghelpers.NewManagedCluster("cluster1").Build(),
+					testinghelpers.NewManagedCluster("cluster2").Build(),
+					testinghelpers.NewManagedCluster("cluster3").Build(),
+				},
+				scheduledDecisions: []clusterapiv1beta1.ClusterDecision{},
+			},
+			validateActions: testinghelpers.AssertNoActions,
+		},
 	}
 
 	for _, c := range cases {

pkg/helpers/testing/builders.go

@@ -29,6 +29,18 @@ func NewPlacement(namespace, name string) *placementBuilder {
 	}
 }
 
+func NewPlacementWithAnnotations(namespace, name string, annotations map[string]string) *placementBuilder {
+	return &placementBuilder{
+		placement: &clusterapiv1beta1.Placement{
+			ObjectMeta: metav1.ObjectMeta{
+				Namespace:   namespace,
+				Name:        name,
+				Annotations: annotations,
+			},
+		},
+	}
+}
+
 func (b *placementBuilder) WithUID(uid string) *placementBuilder {
 	b.placement.UID = types.UID(uid)
 	return b