mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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112 lines
3.2 KiB
Go
112 lines
3.2 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package config
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import (
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"io"
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"os"
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"strconv"
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"github.com/golang/glog"
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"github.com/spf13/cobra"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd"
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clientcmdapi "github.com/GoogleCloudPlatform/kubernetes/pkg/client/clientcmd/api"
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)
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type pathOptions struct {
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local bool
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global bool
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specifiedFile string
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}
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func NewCmdConfig(out io.Writer) *cobra.Command {
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pathOptions := &pathOptions{}
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cmd := &cobra.Command{
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Use: "config <subcommand>",
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Short: "config modifies .kubeconfig files",
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Long: `config modifies .kubeconfig files using subcommands like "kubectl config set current-context my-context"`,
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Run: func(cmd *cobra.Command, args []string) {
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cmd.Help()
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},
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}
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// file paths are common to all sub commands
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cmd.PersistentFlags().BoolVar(&pathOptions.local, "local", true, "use the .kubeconfig in the currect directory")
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cmd.PersistentFlags().BoolVar(&pathOptions.global, "global", false, "use the .kubeconfig from "+os.Getenv("HOME"))
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cmd.PersistentFlags().StringVar(&pathOptions.specifiedFile, "kubeconfig", "", "use a particular .kubeconfig file")
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cmd.AddCommand(NewCmdConfigView(out, pathOptions))
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cmd.AddCommand(NewCmdConfigSetCluster(out, pathOptions))
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cmd.AddCommand(NewCmdConfigSetAuthInfo(out, pathOptions))
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cmd.AddCommand(NewCmdConfigSetContext(out, pathOptions))
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cmd.AddCommand(NewCmdConfigSet(out, pathOptions))
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cmd.AddCommand(NewCmdConfigUnset(out, pathOptions))
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cmd.AddCommand(NewCmdConfigUseContext(out, pathOptions))
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return cmd
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}
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func (o *pathOptions) getStartingConfig() (*clientcmdapi.Config, string, error) {
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filename := ""
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config := clientcmdapi.NewConfig()
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switch {
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case o.global:
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filename = os.Getenv("HOME") + "/.kube/.kubeconfig"
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config = getConfigFromFileOrDie(filename)
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case len(o.specifiedFile) > 0:
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filename = o.specifiedFile
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config = getConfigFromFileOrDie(filename)
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case o.local:
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filename = ".kubeconfig"
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config = getConfigFromFileOrDie(filename)
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}
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return config, filename, nil
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}
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// 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
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func getConfigFromFileOrDie(filename string) *clientcmdapi.Config {
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var err error
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config, err := clientcmd.LoadFromFile(filename)
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if err != nil && !os.IsNotExist(err) {
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glog.FatalDepth(1, err)
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}
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if config == nil {
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config = clientcmdapi.NewConfig()
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}
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return config
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}
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func toBool(propertyValue string) (bool, error) {
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boolValue := false
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if len(propertyValue) != 0 {
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var err error
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boolValue, err = strconv.ParseBool(propertyValue)
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if err != nil {
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return false, err
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}
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}
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return boolValue, nil
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}
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