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- /*
- Copyright 2016 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 create
- import (
- "github.com/spf13/cobra"
- "k8s.io/cli-runtime/pkg/genericclioptions"
- cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
- "k8s.io/kubernetes/pkg/kubectl/generate"
- generateversioned "k8s.io/kubernetes/pkg/kubectl/generate/versioned"
- "k8s.io/kubernetes/pkg/kubectl/util/i18n"
- "k8s.io/kubernetes/pkg/kubectl/util/templates"
- )
- var (
- pdbLong = templates.LongDesc(i18n.T(`
- Create a pod disruption budget with the specified name, selector, and desired minimum available pods`))
- pdbExample = templates.Examples(i18n.T(`
- # Create a pod disruption budget named my-pdb that will select all pods with the app=rails label
- # and require at least one of them being available at any point in time.
- kubectl create poddisruptionbudget my-pdb --selector=app=rails --min-available=1
- # Create a pod disruption budget named my-pdb that will select all pods with the app=nginx label
- # and require at least half of the pods selected to be available at any point in time.
- kubectl create pdb my-pdb --selector=app=nginx --min-available=50%`))
- )
- // PodDisruptionBudgetOpts holds the command-line options for poddisruptionbudget sub command
- type PodDisruptionBudgetOpts struct {
- CreateSubcommandOptions *CreateSubcommandOptions
- }
- // NewCmdCreatePodDisruptionBudget is a macro command to create a new pod disruption budget.
- func NewCmdCreatePodDisruptionBudget(f cmdutil.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
- options := &PodDisruptionBudgetOpts{
- CreateSubcommandOptions: NewCreateSubcommandOptions(ioStreams),
- }
- cmd := &cobra.Command{
- Use: "poddisruptionbudget NAME --selector=SELECTOR --min-available=N [--dry-run]",
- DisableFlagsInUseLine: true,
- Aliases: []string{"pdb"},
- Short: i18n.T("Create a pod disruption budget with the specified name."),
- Long: pdbLong,
- Example: pdbExample,
- Run: func(cmd *cobra.Command, args []string) {
- cmdutil.CheckErr(options.Complete(f, cmd, args))
- cmdutil.CheckErr(options.Run())
- },
- }
- options.CreateSubcommandOptions.PrintFlags.AddFlags(cmd)
- cmdutil.AddApplyAnnotationFlags(cmd)
- cmdutil.AddValidateFlags(cmd)
- cmdutil.AddGeneratorFlags(cmd, generateversioned.PodDisruptionBudgetV2GeneratorName)
- cmd.Flags().String("min-available", "", i18n.T("The minimum number or percentage of available pods this budget requires."))
- cmd.Flags().String("max-unavailable", "", i18n.T("The maximum number or percentage of unavailable pods this budget requires."))
- cmd.Flags().String("selector", "", i18n.T("A label selector to use for this budget. Only equality-based selector requirements are supported."))
- return cmd
- }
- // Complete completes all the required options
- func (o *PodDisruptionBudgetOpts) Complete(f cmdutil.Factory, cmd *cobra.Command, args []string) error {
- name, err := NameFromCommandArgs(cmd, args)
- if err != nil {
- return err
- }
- var generator generate.StructuredGenerator
- switch generatorName := cmdutil.GetFlagString(cmd, "generator"); generatorName {
- case generateversioned.PodDisruptionBudgetV1GeneratorName:
- generator = &generateversioned.PodDisruptionBudgetV1Generator{
- Name: name,
- MinAvailable: cmdutil.GetFlagString(cmd, "min-available"),
- Selector: cmdutil.GetFlagString(cmd, "selector"),
- }
- case generateversioned.PodDisruptionBudgetV2GeneratorName:
- generator = &generateversioned.PodDisruptionBudgetV2Generator{
- Name: name,
- MinAvailable: cmdutil.GetFlagString(cmd, "min-available"),
- MaxUnavailable: cmdutil.GetFlagString(cmd, "max-unavailable"),
- Selector: cmdutil.GetFlagString(cmd, "selector"),
- }
- default:
- return errUnsupportedGenerator(cmd, generatorName)
- }
- return o.CreateSubcommandOptions.Complete(f, cmd, args, generator)
- }
- // Run calls the CreateSubcommandOptions.Run in PodDisruptionBudgetOpts instance
- func (o *PodDisruptionBudgetOpts) Run() error {
- return o.CreateSubcommandOptions.Run()
- }
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