service_controller: Include service key in error messages

pkg/controller/service/service_controller.go

@@ -759,7 +759,7 @@ func (s *ServiceController) syncService(key string) error {
 
 	if retryDelay != 0 {
 		// Add the failed service back to the queue so we'll retry it.
-		glog.Errorf("Failed to process service. Retrying in %s: %v", retryDelay, err)
+		glog.Errorf("Failed to process service %v. Retrying in %s: %v", key, retryDelay, err)
 		go func(obj interface{}, delay time.Duration) {
 			// put back the service key to working queue, it is possible that more entries of the service
 			// were added into the queue during the delay, but it does not mess as when handling the retry,
@@ -767,7 +767,7 @@ func (s *ServiceController) syncService(key string) error {
 			s.workingQueue.AddAfter(obj, delay)
 		}(key, retryDelay)
 	} else if err != nil {
-		runtime.HandleError(fmt.Errorf("Failed to process service. Not retrying: %v", err))
+		runtime.HandleError(fmt.Errorf("Failed to process service %v. Not retrying: %v", key, err))
 	}
 	return nil
 }