add kubectl config

2014-12-17 08:03:03 -05:00
parent de2e298fa9
commit b51a717f6e
28 changed files with 2289 additions and 270 deletions
--- a/pkg/kubectl/cmd/config/config.go
+++ b/pkg/kubectl/cmd/config/config.go
@@ -0,0 +1,111 @@
+/*
+Copyright 2014 Google Inc. All rights reserved.
+
+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 config
+
+import (
+	"io"
+	"os"
+	"strconv"
+
+	"github.com/golang/glog"
+	"github.com/spf13/cobra"
+
+	"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
+	clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
+)
+
+type pathOptions struct {
+	local         bool
+	global        bool
+	specifiedFile string
+}
+
+func NewCmdConfig(out io.Writer) *cobra.Command {
+	pathOptions := &pathOptions{}
+
+	cmd := &cobra.Command{
+		Use:   "config <subcommand>",
+		Short: "config modifies .kubeconfig files",
+		Long:  `config modifies .kubeconfig files using subcommands like "kubectl config set current-context my-context"`,
+		Run: func(cmd *cobra.Command, args []string) {
+			cmd.Help()
+		},
+	}
+
+	// file paths are common to all sub commands
+	cmd.PersistentFlags().BoolVar(&pathOptions.local, "local", true, "use the .kubeconfig in the currect directory")
+	cmd.PersistentFlags().BoolVar(&pathOptions.global, "global", false, "use the .kubeconfig from "+os.Getenv("HOME"))
+	cmd.PersistentFlags().StringVar(&pathOptions.specifiedFile, "kubeconfig", "", "use a particular .kubeconfig file")
+
+	cmd.AddCommand(NewCmdConfigView(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigSetCluster(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigSetAuthInfo(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigSetContext(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigSet(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigUnset(out, pathOptions))
+	cmd.AddCommand(NewCmdConfigUseContext(out, pathOptions))
+
+	return cmd
+}
+
+func (o *pathOptions) getStartingConfig() (*clientcmdapi.Config, string, error) {
+	filename := ""
+	config := clientcmdapi.NewConfig()
+	switch {
+	case o.global:
+		filename = os.Getenv("HOME") + "/.kube/.kubeconfig"
+		config = getConfigFromFileOrDie(filename)
+
+	case len(o.specifiedFile) > 0:
+		filename = o.specifiedFile
+		config = getConfigFromFileOrDie(filename)
+
+	case o.local:
+		filename = ".kubeconfig"
+		config = getConfigFromFileOrDie(filename)
+	}
+
+	return config, filename, nil
+}
+
+// getConfigFromFileOrDie tries to read a kubeconfig file and if it can't, it calls exit.  One exception, missing files result in empty configs, not an exit
+func getConfigFromFileOrDie(filename string) *clientcmdapi.Config {
+	var err error
+	config, err := clientcmd.LoadFromFile(filename)
+	if err != nil && !os.IsNotExist(err) {
+		glog.FatalDepth(1, err)
+	}
+
+	if config == nil {
+		config = clientcmdapi.NewConfig()
+	}
+
+	return config
+}
+
+func toBool(propertyValue string) (bool, error) {
+	boolValue := false
+	if len(propertyValue) != 0 {
+		var err error
+		boolValue, err = strconv.ParseBool(propertyValue)
+		if err != nil {
+			return false, err
+		}
+	}
+
+	return boolValue, nil
+}