| // Copyright Istio 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 multicluster |
| |
| import ( |
| "context" |
| ) |
| |
| import ( |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| "k8s.io/apimachinery/pkg/types" |
| "k8s.io/client-go/kubernetes" |
| ) |
| |
| const ( |
| defaultIstioNamespace = "dubbo-system" |
| ) |
| |
| // Use UUID of kube-system Namespace as unique identifier for cluster. |
| // (see https://docs.google.com/document/d/1F__vEKeI41P7PPUCMM9PVPYY34pyrvQI5rbTJVnS5c4) |
| func clusterUID(client kubernetes.Interface) (types.UID, error) { |
| kubeSystem, err := client.CoreV1().Namespaces().Get(context.TODO(), "kube-system", metav1.GetOptions{}) |
| if err != nil { |
| return "", err |
| } |
| return kubeSystem.UID, nil |
| } |
| |
| const ( |
| IstioEastWestGatewayServiceName = "istio-eastwestgateway" |
| ) |