Merge pull request #43229 from mwielgus/cm-fix

Automatic merge from submit-queue

Fix federated config map unit tests

Fixes #41419 and #42847 and possibly other issues in this area.

cc: @nikhiljindal @csbell @perotinus

federation/pkg/federation-controller/configmap/configmap_controller.go

@@ -323,13 +323,18 @@ func (configmapcontroller *ConfigMapController) reconcileConfigMap(configmap typ
 		glog.V(8).Infof("Skipping not federated config map: %s", key)
 		return
 	}
-	baseConfigMap := baseConfigMapObj.(*apiv1.ConfigMap)
+	obj, err := api.Scheme.DeepCopy(baseConfigMapObj)
+	configMap, ok := obj.(*apiv1.ConfigMap)
+	if err != nil || !ok {
+		glog.Errorf("Error in retrieving obj from store: %v, %v", ok, err)
+		return
+	}
 
 	// Check if deletion has been requested.
-	if baseConfigMap.DeletionTimestamp != nil {
-		if err := configmapcontroller.delete(baseConfigMap); err != nil {
+	if configMap.DeletionTimestamp != nil {
+		if err := configmapcontroller.delete(configMap); err != nil {
 			glog.Errorf("Failed to delete %s: %v", configmap, err)
-			configmapcontroller.eventRecorder.Eventf(baseConfigMap, api.EventTypeNormal, "DeleteFailed",
+			configmapcontroller.eventRecorder.Eventf(configMap, api.EventTypeNormal, "DeleteFailed",
 				"ConfigMap delete failed: %v", err)
 			configmapcontroller.deliverConfigMap(configmap, 0, true)
 		}
@@ -337,18 +342,18 @@ func (configmapcontroller *ConfigMapController) reconcileConfigMap(configmap typ
 	}
 
 	glog.V(3).Infof("Ensuring delete object from underlying clusters finalizer for configmap: %s",
-		baseConfigMap.Name)
+		configMap.Name)
 	// Add the required finalizers before creating a configmap in underlying clusters.
-	updatedConfigMapObj, err := configmapcontroller.deletionHelper.EnsureFinalizers(baseConfigMap)
+	updatedConfigMapObj, err := configmapcontroller.deletionHelper.EnsureFinalizers(configMap)
 	if err != nil {
 		glog.Errorf("Failed to ensure delete object from underlying clusters finalizer in configmap %s: %v",
-			baseConfigMap.Name, err)
+			configMap.Name, err)
 		configmapcontroller.deliverConfigMap(configmap, 0, false)
 		return
 	}
-	baseConfigMap = updatedConfigMapObj.(*apiv1.ConfigMap)
+	configMap = updatedConfigMapObj.(*apiv1.ConfigMap)
 
-	glog.V(3).Infof("Syncing configmap %s in underlying clusters", baseConfigMap.Name)
+	glog.V(3).Infof("Syncing configmap %s in underlying clusters", configMap.Name)
 
 	clusters, err := configmapcontroller.configmapFederatedInformer.GetReadyClusters()
 	if err != nil {
@@ -368,12 +373,12 @@ func (configmapcontroller *ConfigMapController) reconcileConfigMap(configmap typ
 
 		// Do not modify data.
 		desiredConfigMap := &apiv1.ConfigMap{
-			ObjectMeta: util.DeepCopyRelevantObjectMeta(baseConfigMap.ObjectMeta),
-			Data:       baseConfigMap.Data,
+			ObjectMeta: util.DeepCopyRelevantObjectMeta(configMap.ObjectMeta),
+			Data:       configMap.Data,
 		}
 
 		if !found {
-			configmapcontroller.eventRecorder.Eventf(baseConfigMap, api.EventTypeNormal, "CreateInCluster",
+			configmapcontroller.eventRecorder.Eventf(configMap, api.EventTypeNormal, "CreateInCluster",
 				"Creating configmap in cluster %s", cluster.Name)
 
 			operations = append(operations, util.FederatedOperation{
@@ -386,7 +391,7 @@ func (configmapcontroller *ConfigMapController) reconcileConfigMap(configmap typ
 
 			// Update existing configmap, if needed.
 			if !util.ConfigMapEquivalent(desiredConfigMap, clusterConfigMap) {
-				configmapcontroller.eventRecorder.Eventf(baseConfigMap, api.EventTypeNormal, "UpdateInCluster",
+				configmapcontroller.eventRecorder.Eventf(configMap, api.EventTypeNormal, "UpdateInCluster",
 					"Updating configmap in cluster %s", cluster.Name)
 				operations = append(operations, util.FederatedOperation{
 					Type:        util.OperationTypeUpdate,
@@ -404,7 +409,7 @@ func (configmapcontroller *ConfigMapController) reconcileConfigMap(configmap typ
 	}
 	err = configmapcontroller.federatedUpdater.UpdateWithOnError(operations, configmapcontroller.updateTimeout,
 		func(op util.FederatedOperation, operror error) {
-			configmapcontroller.eventRecorder.Eventf(baseConfigMap, api.EventTypeNormal, "UpdateInClusterFailed",
+			configmapcontroller.eventRecorder.Eventf(configMap, api.EventTypeNormal, "UpdateInClusterFailed",
 				"ConfigMap update in cluster %s failed: %v", op.ClusterName, operror)
 		})
 

federation/pkg/federation-controller/configmap/configmap_controller_test.go

@@ -143,11 +143,18 @@ func TestConfigMapController(t *testing.T) {
 	}
 
 	configmapWatch.Modify(configmap1)
-	updatedConfigMap = GetConfigMapFromChan(cluster1UpdateChan)
-	assert.NotNil(t, updatedConfigMap)
-	assert.Equal(t, configmap1.Name, updatedConfigMap.Name)
-	assert.Equal(t, configmap1.Namespace, updatedConfigMap.Namespace)
-	assert.True(t, util.ConfigMapEquivalent(configmap1, updatedConfigMap))
+	for {
+		updatedConfigMap := GetConfigMapFromChan(cluster1UpdateChan)
+		assert.NotNil(t, updatedConfigMap)
+		if updatedConfigMap == nil {
+			break
+		}
+		assert.Equal(t, configmap1.Name, updatedConfigMap.Name)
+		assert.Equal(t, configmap1.Namespace, updatedConfigMap.Namespace)
+		if util.ConfigMapEquivalent(configmap1, updatedConfigMap) {
+			break
+		}
+	}
 
 	// Test add cluster
 	clusterWatch.Add(cluster2)