mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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100 lines
2.5 KiB
Go
100 lines
2.5 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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"fmt"
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"io"
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"github.com/ghodss/yaml"
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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 viewOptions struct {
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pathOptions *pathOptions
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merge bool
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}
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func NewCmdConfigView(out io.Writer, pathOptions *pathOptions) *cobra.Command {
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options := &viewOptions{pathOptions: pathOptions}
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cmd := &cobra.Command{
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Use: "view",
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Short: "displays the specified .kubeconfig file or a merged result",
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Long: `displays the specified .kubeconfig file or a merged result`,
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Run: func(cmd *cobra.Command, args []string) {
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err := options.run()
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if err != nil {
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fmt.Printf("%v\n", err)
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}
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},
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}
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cmd.Flags().BoolVar(&options.merge, "merge", false, "merge together the full hierarchy of .kubeconfig files")
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return cmd
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}
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func (o viewOptions) run() error {
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err := o.validate()
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if err != nil {
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return err
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}
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config, _, err := o.getStartingConfig()
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if err != nil {
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return err
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}
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content, err := yaml.Marshal(config)
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if err != nil {
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return err
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}
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fmt.Printf("%v", string(content))
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return nil
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}
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func (o viewOptions) validate() error {
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return nil
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}
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// getStartingConfig returns the Config object built from the sources specified by the options, the filename read (only if it was a single file), and an error if something goes wrong
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func (o *viewOptions) getStartingConfig() (*clientcmdapi.Config, string, error) {
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switch {
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case o.merge:
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loadingRules := clientcmd.NewClientConfigLoadingRules()
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loadingRules.EnvVarPath = ""
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loadingRules.CommandLinePath = o.pathOptions.specifiedFile
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overrides := &clientcmd.ConfigOverrides{}
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clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)
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config, err := clientConfig.RawConfig()
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if err != nil {
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return nil, "", fmt.Errorf("Error getting config: %v", err)
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}
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return &config, "", nil
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default:
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return o.pathOptions.getStartingConfig()
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}
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}
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