KubeCAFile:         viper.GetString(constants.KubeCAFile),
		SkipTLSVerify:      viper.GetBool(constants.SkipTLSVerify),
		K8sServiceProtocol: os.Getenv("KUBERNETES_SERVICE_PROTOCOL"),
		K8sServiceHost:     os.Getenv("KUBERNETES_SERVICE_HOST"),
		K8sServicePort:     os.Getenv("KUBERNETES_SERVICE_PORT"),
		K8sNodeName:        os.Getenv("KUBERNETES_NODE_NAME"),

		CNIBinSourceDir:   constants.CNIBinDir,

		Short:             "Istio control interface.",
		SilenceUsage:      true,
		DisableAutoGenTag: true,
		PersistentPreRunE: ConfigureLogging,
		Long: `Istio configuration command line utility for service operators to
debug and diagnose their Istio mesh.
`,
	}

	rootCmd.SetArgs(args)

	flags := rootCmd.PersistentFlags()
	rootOptions := cli.AddRootFlags(flags)