| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 kubernetes |
| |
| import ( |
| "io/ioutil" |
| |
| "github.com/pkg/errors" |
| "k8s.io/apimachinery/pkg/runtime/schema" |
| "k8s.io/client-go/tools/clientcmd" |
| clientcmdapi "k8s.io/client-go/tools/clientcmd/api" |
| clientcmdlatest "k8s.io/client-go/tools/clientcmd/api/latest" |
| ) |
| |
| // GetClientCurrentNamespace -- |
| func GetClientCurrentNamespace(kubeconfig string) (string, error) { |
| if kubeconfig == "" { |
| kubeconfig = getDefaultKubeConfigFile() |
| } |
| if kubeconfig == "" { |
| return "default", nil |
| } |
| |
| data, err := ioutil.ReadFile(kubeconfig) |
| if err != nil { |
| return "", err |
| } |
| config := clientcmdapi.NewConfig() |
| if len(data) == 0 { |
| return "", errors.New("kubernetes config file is empty") |
| } |
| |
| decoded, _, err := clientcmdlatest.Codec.Decode(data, &schema.GroupVersionKind{Version: clientcmdlatest.Version, Kind: "Config"}, config) |
| if err != nil { |
| return "", err |
| } |
| |
| clientcmdconfig := decoded.(*clientcmdapi.Config) |
| |
| cc := clientcmd.NewDefaultClientConfig(*clientcmdconfig, &clientcmd.ConfigOverrides{}) |
| ns, _, err := cc.Namespace() |
| return ns, err |
| } |