mirror of https://github.com/k3s-io/k3s
117 lines
2.8 KiB
Go
117 lines
2.8 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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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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"errors"
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"fmt"
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"io"
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"reflect"
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"github.com/spf13/cobra"
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"k8s.io/kubectl/pkg/util/templates"
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"k8s.io/client-go/tools/clientcmd"
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cmdutil "k8s.io/kubectl/pkg/cmd/util"
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"k8s.io/kubectl/pkg/util/i18n"
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)
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type unsetOptions struct {
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configAccess clientcmd.ConfigAccess
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propertyName string
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}
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var (
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unsetLong = templates.LongDesc(i18n.T(`
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Unsets an individual value in a kubeconfig file
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PROPERTY_NAME is a dot delimited name where each token represents either an attribute name or a map key. Map keys may not contain dots.`))
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unsetExample = templates.Examples(`
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# Unset the current-context.
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kubectl config unset current-context
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# Unset namespace in foo context.
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kubectl config unset contexts.foo.namespace`)
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)
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// NewCmdConfigUnset returns a Command instance for 'config unset' sub command
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func NewCmdConfigUnset(out io.Writer, configAccess clientcmd.ConfigAccess) *cobra.Command {
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options := &unsetOptions{configAccess: configAccess}
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cmd := &cobra.Command{
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Use: "unset PROPERTY_NAME",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Unsets an individual value in a kubeconfig file"),
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Long: unsetLong,
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Example: unsetExample,
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Run: func(cmd *cobra.Command, args []string) {
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cmdutil.CheckErr(options.complete(cmd, args))
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cmdutil.CheckErr(options.run(out))
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},
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}
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return cmd
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}
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func (o unsetOptions) run(out io.Writer) 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.configAccess.GetStartingConfig()
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if err != nil {
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return err
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}
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steps, err := newNavigationSteps(o.propertyName)
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if err != nil {
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return err
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}
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err = modifyConfig(reflect.ValueOf(config), steps, "", true, true)
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if err != nil {
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return err
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}
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if err := clientcmd.ModifyConfig(o.configAccess, *config, false); err != nil {
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return err
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}
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if _, err := fmt.Fprintf(out, "Property %q unset.\n", o.propertyName); err != nil {
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return err
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}
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return nil
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}
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func (o *unsetOptions) complete(cmd *cobra.Command, args []string) error {
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if len(args) != 1 {
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return helpErrorf(cmd, "Unexpected args: %v", args)
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}
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o.propertyName = args[0]
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return nil
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}
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func (o unsetOptions) validate() error {
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if len(o.propertyName) == 0 {
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return errors.New("you must specify a property")
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}
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return nil
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}
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