if err != nil {
		return nil, fmt.Errorf("could not read valid configmap %q from namespace %q: %v - "+
			"Use --meshConfigFile or re-run "+command+" with `-i <istioSystemNamespace> and ensure valid MeshConfig exists",
			meshConfigMapName, ctx.IstioNamespace(), err)
	}
	// values in the data are strings, while proto might use a
	// different data type.  therefore, we have to get a value by a

	"istio.io/istio/pkg/env"
)

var (
	PodNamespace      = env.RegisterStringVar("POD_NAMESPACE", "", "pod's namespace").Get()
	SystemNamespace   = env.RegisterStringVar("SYSTEM_NAMESPACE", constants.IstioSystemNamespace, "istio system namespace").Get()
	PodName           = env.RegisterStringVar("POD_NAME", "", "").Get()
	NodeName          = env.RegisterStringVar("NODE_NAME", "", "").Get()

	if root.IstioConfig != defaultIstioctlConfig {
		return err
	}

	return nil
}

func init() {
	viper.SetDefault("istioNamespace", constants.IstioSystemNamespace)
	viper.SetDefault("xds-port", 15012)
}

// GetRootCmd returns the root of the cobra command-tree.
func GetRootCmd(args []string) *cobra.Command {
	rootCmd := &cobra.Command{

		n = n[:i]
	}
	p := protocol.Parse(n)
	return p == protocol.Unsupported
}

func handleNamespace(istioNamespace string) string {
	if istioNamespace == "" {
		istioNamespace = constants.IstioSystemNamespace
	}
	return istioNamespace
}

// TODO(nmittler): Remove this once Pilot migrates to galley schema.