mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-06-13 10:00:56 +00:00
118 lines
3.8 KiB
Go
118 lines
3.8 KiB
Go
// Copyright 2019 The Kubernetes Authors.
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// SPDX-License-Identifier: Apache-2.0
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// package kubectlcobra contains cobra commands from kubectl
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package kubectlcobra
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import (
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"flag"
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"os"
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"strings"
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"github.com/spf13/cobra"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/kubectl/pkg/cmd/apply"
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"k8s.io/kubectl/pkg/cmd/diff"
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"k8s.io/kubectl/pkg/cmd/util"
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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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"sigs.k8s.io/kustomize/kyaml/commandutil"
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// initialize auth
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_ "k8s.io/client-go/plugin/pkg/client/auth"
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)
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// GetCommand returns a command from kubectl to install
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func GetCommand(parent *cobra.Command) *cobra.Command {
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if !commandutil.GetAlphaEnabled() {
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return &cobra.Command{
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Use: "resources",
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Short: "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true",
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Long: "[Alpha] To enable set KUSTOMIZE_ENABLE_ALPHA_COMMANDS=true",
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}
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}
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r := &cobra.Command{
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Use: "resources",
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Short: "[Alpha] Perform cluster operations using declarative configuration",
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Long: "[Alpha] Perform cluster operations using declarative configuration",
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}
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// configure kubectl dependencies and flags
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flags := r.Flags()
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kubeConfigFlags := genericclioptions.NewConfigFlags(true).WithDeprecatedPasswordFlag()
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kubeConfigFlags.AddFlags(flags)
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matchVersionKubeConfigFlags := util.NewMatchVersionFlags(kubeConfigFlags)
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matchVersionKubeConfigFlags.AddFlags(r.PersistentFlags())
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r.PersistentFlags().AddGoFlagSet(flag.CommandLine)
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f := util.NewFactory(matchVersionKubeConfigFlags)
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var ioStreams genericclioptions.IOStreams
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if parent != nil {
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ioStreams.In = parent.InOrStdin()
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ioStreams.Out = parent.OutOrStdout()
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ioStreams.ErrOut = parent.ErrOrStderr()
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} else {
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ioStreams.In = os.Stdin
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ioStreams.Out = os.Stdout
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ioStreams.ErrOut = os.Stderr
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}
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names := []string{"apply", "diff"}
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applyCmd := NewCmdApply("kustomize", f, ioStreams)
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updateHelp(names, applyCmd)
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diffCmd := diff.NewCmdDiff(f, ioStreams)
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updateHelp(names, diffCmd)
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r.AddCommand(applyCmd, diffCmd)
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return r
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}
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// updateHelp replaces `kubectl` help messaging with `kustomize` help messaging
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func updateHelp(names []string, c *cobra.Command) {
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for i := range names {
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name := names[i]
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c.Short = strings.ReplaceAll(c.Short, "kubectl "+name, "kustomize "+name)
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c.Long = strings.ReplaceAll(c.Long, "kubectl "+name, "kustomize "+name)
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c.Example = strings.ReplaceAll(c.Example, "kubectl "+name, "kustomize "+name)
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}
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}
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// NewCmdApply creates the `apply` command
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func NewCmdApply(baseName string, f util.Factory, ioStreams genericclioptions.IOStreams) *cobra.Command {
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o := apply.NewApplyOptions(ioStreams)
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cmd := &cobra.Command{
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Use: "apply (-f FILENAME | -k DIRECTORY)",
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DisableFlagsInUseLine: true,
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Short: i18n.T("Apply a configuration to a resource by filename or stdin"),
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//Long: applyLong,
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//Example: applyExample,
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Args: cobra.MaximumNArgs(1),
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Run: func(cmd *cobra.Command, args []string) {
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if len(args) > 0 {
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// check is kustomize, if so update
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o.DeleteFlags.FileNameFlags.Kustomize = &args[0]
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}
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cmdutil.CheckErr(o.Complete(f, cmd))
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cmdutil.CheckErr(o.Run())
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},
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}
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// bind flag structs
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o.DeleteFlags.AddFlags(cmd)
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o.RecordFlags.AddFlags(cmd)
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o.PrintFlags.AddFlags(cmd)
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o.Overwrite = true
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cmdutil.AddValidateFlags(cmd)
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cmd.Flags().BoolVar(&o.ServerDryRun, "server-dry-run", o.ServerDryRun, "If true, request will be sent to server with dry-run flag, which means the modifications won't be persisted. This is an alpha feature and flag.")
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cmd.Flags().Bool("dry-run", false, "If true, only print the object that would be sent, without sending it. Warning: --dry-run cannot accurately output the result of merging the local manifest and the server-side data. Use --server-dry-run to get the merged result instead.")
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cmdutil.AddServerSideApplyFlags(cmd)
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return cmd
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}
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