func (s *ServiceController) ensureClusterService(cachedService *cachedService, clusterName string, service *v1.Service, client *release_1_4.Clientset) error { var err error var needUpdate bool for i := 0; i < clientRetryCount; i++ { svc, err := client.Core().Services(service.Namespace).Get(service.Name) if err == nil { // service exists glog.V(5).Infof("Found service %s/%s from cluster %s", service.Namespace, service.Name, clusterName) //reserve immutable fields service.Spec.ClusterIP = svc.Spec.ClusterIP //reserve auto assigned field for i, oldPort := range svc.Spec.Ports { for _, port := range service.Spec.Ports { if port.NodePort == 0 { if !portEqualExcludeNodePort(&oldPort, &port) { svc.Spec.Ports[i] = port needUpdate = true } } else { if !portEqualForLB(&oldPort, &port) { svc.Spec.Ports[i] = port needUpdate = true } } } } if needUpdate { // we only apply spec update svc.Spec = service.Spec _, err = client.Core().Services(svc.Namespace).Update(svc) if err == nil { glog.V(5).Infof("Service %s/%s successfully updated to cluster %s", svc.Namespace, svc.Name, clusterName) return nil } else { glog.V(4).Infof("Failed to update %+v", err) } } else { glog.V(5).Infof("Service %s/%s is not updated to cluster %s as the spec are identical", svc.Namespace, svc.Name, clusterName) return nil } } else if errors.IsNotFound(err) { // Create service if it is not found glog.Infof("Service '%s/%s' is not found in cluster %s, trying to create new", service.Namespace, service.Name, clusterName) service.ResourceVersion = "" _, err = client.Core().Services(service.Namespace).Create(service) if err == nil { glog.V(5).Infof("Service %s/%s successfully created to cluster %s", service.Namespace, service.Name, clusterName) return nil } glog.V(4).Infof("Failed to create %+v", err) if errors.IsAlreadyExists(err) { glog.V(5).Infof("service %s/%s already exists in cluster %s", service.Namespace, service.Name, clusterName) return nil } } if errors.IsConflict(err) { glog.V(4).Infof("Not persisting update to service '%s/%s' that has been changed since we received it: %v", service.Namespace, service.Name, err) } // should we reuse same retry delay for all clusters? time.Sleep(cachedService.nextRetryDelay()) } return err }