From 49314d8418f8258bc06f675bb9cc35a008d758dd Mon Sep 17 00:00:00 2001 From: Avesh Agarwal Date: Sun, 30 Jul 2017 18:40:01 -0400 Subject: [PATCH] Implement utils package. --- pkg/utils/utils.go | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 pkg/utils/utils.go diff --git a/pkg/utils/utils.go b/pkg/utils/utils.go new file mode 100644 index 000000000..0e947d594 --- /dev/null +++ b/pkg/utils/utils.go @@ -0,0 +1,40 @@ +/* +Copyright 2017 The Kubernetes 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 utils + +import ( + "fmt" + + "k8s.io/client-go/tools/clientcmd" +) + +func GetMasterFromKubeconfig(filename string) (string, error) { + config, err := clientcmd.LoadFromFile(filename) + if err != nil { + return "", err + } + + context, ok := config.Contexts[config.CurrentContext] + if !ok { + return "", fmt.Errorf("Failed to get master address from kubeconfig") + } + + if val, ok := config.Clusters[context.Cluster]; ok { + return val.Server, nil + } + return "", fmt.Errorf("Failed to get master address from kubeconfig") +}