cmd.PersistentFlags().StringVar(&o.Xds, "xds-address", viper.GetString("XDS-ADDRESS"),
		"XDS Endpoint")
	cmd.PersistentFlags().StringVar(&o.CertDir, "cert-dir", viper.GetString("CERT-DIR"),
		"XDS Endpoint certificate directory")
	cmd.PersistentFlags().StringVar(&o.XdsPodLabel, "xds-label", "",
		"Istiod pod label selector")
	cmd.PersistentFlags().IntVar(&o.XdsPodPort, "xds-port", viper.GetInt("XDS-PORT"),

	}

	clusterConfigCmd.PersistentFlags().StringVarP(&outputFormat, "output", "o", summaryOutput, "Output format: one of json|yaml|short")
	clusterConfigCmd.PersistentFlags().StringVar(&fqdn, "fqdn", "", "Filter clusters by substring of Service FQDN field")
	clusterConfigCmd.PersistentFlags().StringVar(&direction, "direction", "", "Filter clusters by Direction field")

			return returnError
		},
	}

	analysisCmd.PersistentFlags().BoolVarP(&listAnalyzers, "list-analyzers", "L", false,
		"List the analyzers available to run. Suppresses normal execution.")
	analysisCmd.PersistentFlags().BoolVarP(&useKube, "use-kube", "k", true,
		"Use live Kubernetes cluster for analysis. Set --use-kube=false to analyze files only.")

		parentFlag1 = "parent-flag1"
		parentFlag2 = "parent-flag2"
		childFlag2  = "child-flag2"
	)
	parent := &cobra.Command{Use: "parent"}
	_ = parent.PersistentFlags().String(parentFlag0, "", parentFlag0)
	_ = parent.PersistentFlags().String(parentFlag1, "", parentFlag1)
	_ = parent.PersistentFlags().String(parentFlag2, "", parentFlag2)
	var out bytes.Buffer
	parent.SetOut(&out)
	parent.SetErr(&out)

	child := &cobra.Command{
		Use: "child",

	injectCmd.PersistentFlags().StringVar(&injectConfigFile, "injectConfigFile", "",
		"Injection configuration filename. Cannot be used with --injectConfigMapName")
	injectCmd.PersistentFlags().StringVar(&valuesFile, "valuesFile", "",
		"Injection values configuration filename.")

	injectCmd.PersistentFlags().StringVarP(&inFilename, "filename", "f",
		"", "Input Kubernetes resource filename")

		"e.g. `istioctl dashboard proxy --help`")
	envoy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")
	envoy.PersistentFlags().IntVar(&proxyAdminPort, "ui-port", util.DefaultProxyAdminPort, "The component dashboard UI port.")
	dashboardCmd.AddCommand(envoy)

	proxy := proxyDashCmd(cliContext)
	proxy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")

		},
		ValidArgsFunction: completion.ValidPodsNameArgs(ctx),
	}
	opts.AttachControlPlaneFlags(logCmd)
	logCmd.PersistentFlags().BoolVar(&istiodReset, "reset", istiodReset, "Reset levels to default value. (info)")
	logCmd.PersistentFlags().IntVar(&controlzPort, "ctrlz_port", 9876, "ControlZ port")
	logCmd.PersistentFlags().StringVar(&outputLogLevel, "level", outputLogLevel,

		},
	}

	cmd.PersistentFlags().BoolVar(&overwrite, "overwrite", false, overrideHelpStr)
	cmd.PersistentFlags().StringVarP(&manifestsPath, "manifests", "d", "", util.ManifestsFlagHelpStr)
	cmd.PersistentFlags().BoolVarP(&skipConfirmation, "skip-confirmation", "y", false, skipConfirmationFlagHelpStr)
	cmd.PersistentFlags().StringVarP(&revision, "revision", "r", "", revisionHelpStr)

	configureCmd.PersistentFlags().StringVar(&clusterID, "clusterID", "", "The ID used to identify the cluster")
	configureCmd.PersistentFlags().Int64Var(&tokenDuration, "tokenDuration", 3600, "The token duration in seconds (default: 1 hour)")

	centralOpts.AttachControlPlaneFlags(statusCmd)
	statusCmd.PersistentFlags().StringVarP(&configDumpFile, "file", "f", "",
		"Envoy config dump JSON file")
	statusCmd.PersistentFlags().BoolVar(&multiXdsOpts.XdsViaAgents, "xds-via-agents", false,
		"Access Istiod via the tap service of each agent")
	statusCmd.PersistentFlags().IntVar(&multiXdsOpts.XdsViaAgentsLimit, "xds-via-agents-limit", 100,