at some later point.

This allows operators to change which Istio control plane revision should handle injection for a namespace or set of namespaces
without manual relabeling of the "istio.io/rev" tag.
`,
		Args: func(cmd *cobra.Command, args []string) error {
			if len(args) != 0 {
				return fmt.Errorf("unknown subcommand %q", args[0])
			}
			return nil
		},

	rootCmd.AddCommand(proxyconfig.ClustersCommand(ctx))

	rootCmd.AddCommand(collateral.CobraCommand(rootCmd, collateral.Metadata{
		Title:   "Istio Control",
		Section: "istioctl CLI",
		Manual:  "Istio Control",
	}))

	validateCmd := validate.NewValidateCommand(ctx)
	hideInheritedFlags(validateCmd, "kubeconfig")
	rootCmd.AddCommand(validateCmd)

	rootCmd.AddCommand(optionsCommand(rootCmd))

	rootCmd.AddCommand(version.CobraCommand())
	rootCmd.AddCommand(collateral.CobraCommand(rootCmd, collateral.Metadata{
		Title:   "Istio CNI Plugin Installer",
		Section: "install-cni CLI",
		Manual:  "Istio CNI Plugin Installer",
	}))

	registerStringParameter(constants.CNINetDir, "/etc/cni/net.d", "Directory on the host where CNI network plugins are installed")