Removing both finalizers in federation controller in a single update

federation/pkg/federation-controller/util/deletionhelper/deletion_helper.go

@@ -45,7 +45,7 @@ const (
 )
 
 type HasFinalizerFunc func(runtime.Object, string) bool
-type RemoveFinalizerFunc func(runtime.Object, string) (runtime.Object, error)
+type RemoveFinalizerFunc func(runtime.Object, []string) (runtime.Object, error)
 type AddFinalizerFunc func(runtime.Object, []string) (runtime.Object, error)
 type ObjNameFunc func(runtime.Object) string
 
@@ -123,11 +123,8 @@ func (dh *DeletionHelper) HandleObjectInUnderlyingClusters(obj runtime.Object) (
 		// If the obj has FinalizerOrphan finalizer, then we need to orphan the
 		// corresponding objects in underlying clusters.
 		// Just remove both the finalizers in that case.
-		obj, err := dh.removeFinalizerFunc(obj, FinalizerDeleteFromUnderlyingClusters)
-		if err != nil {
-			return obj, err
-		}
-		return dh.removeFinalizerFunc(obj, metav1.FinalizerOrphanDependents)
+		finalizers := []string{FinalizerDeleteFromUnderlyingClusters, metav1.FinalizerOrphanDependents}
+		return dh.removeFinalizerFunc(obj, finalizers)
 	}
 
 	glog.V(2).Infof("Deleting obj %s from underlying clusters", objName)
@@ -183,5 +180,5 @@ func (dh *DeletionHelper) HandleObjectInUnderlyingClusters(obj runtime.Object) (
 	}
 
 	// All done. Just remove the finalizer.
-	return dh.removeFinalizerFunc(obj, FinalizerDeleteFromUnderlyingClusters)
+	return dh.removeFinalizerFunc(obj, []string{FinalizerDeleteFromUnderlyingClusters})
 }

federation/pkg/federation-controller/util/deletionhelper/util.go

@@ -0,0 +1,28 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package deletionhelper
+
+// ContainsString returns true if the given string slice contains the given string.
+// Returns false otherwise.
+func ContainsString(arr []string, s string) bool {
+	for i := range arr {
+		if arr[i] == s {
+			return true
+		}
+	}
+	return false
+}