// Xds is XDS endpoint, e.g. localhost:15010.
	Xds string

	// XdsPodLabel is a Kubernetes label on the Istiod pods
	XdsPodLabel string

	// XdsPodPort is a port exposing XDS (typically 15010 or 15012)
	XdsPodPort int

	// CertDir is the local directory containing certificates
	CertDir string

	// Timeout is how long to wait before giving up on XDS
	Timeout time.Duration

  # (This is the usual way to get the debug information with an out-of-cluster control plane.)
  istioctl x internal-debug syncz --xds-address istio.cloudprovider.example.com:15012

  # Retrieve syncz debug information via Kubernetes config, using token security
  # (This is the usual way to get the debug information with an in-cluster control plane.)
  istioctl x internal-debug syncz

  # (This is the usual way to get the proxy-status with an out-of-cluster control plane.)
  istioctl ps --xds-address istio.cloudprovider.example.com:15012

  # Retrieve proxy status information via Kubernetes config, using token security
  # (This is the usual way to get the proxy-status with an in-cluster control plane.)
  istioctl proxy-status

istioNamespace          istio-system     default
plaintext                                default
prefer-experimental                      default
xds-address                              default
xds-port                15012            default
`,
			WantException: false,
		},
	}

	for i, c := range cases {
		t.Run(fmt.Sprintf("case %d %s", i, strings.Join(c.Args, " ")), func(t *testing.T) {
			testutil.VerifyOutput(t, Cmd(), c)

func DialOptions(opts clioptions.CentralControlPlaneOptions,
	ns, serviceAccount string, kubeClient kube.CLIClient,
) ([]grpc.DialOption, error) {
	ctx := context.TODO()
	// If we are using the insecure 15010 don't bother getting a token
	if opts.Plaintext || opts.CertDir != "" {
		return make([]grpc.DialOption, 0), nil
	}
	// Use bearer token
	aud := tokenAudiences

  # (This is the usual way to get the control plane version with an out-of-cluster control plane.)
  istioctl x version --xds-address istio.cloudprovider.example.com:15012

  # Retrieve version information via Kubernetes config, using token security
  # (This is the usual way to get the control plane version with an in-cluster control plane.)
  istioctl x version

	"xds-address":         env.Register("ISTIOCTL_XDS_ADDRESS", "", "The istioctl --xds-address override"),
	"xds-port":            env.Register("ISTIOCTL_XDS_PORT", 15012, "The istioctl --xds-port override"),
	"authority":           env.Register("ISTIOCTL_AUTHORITY", "", "The istioctl --authority override"),
	"cert-dir":            env.Register("ISTIOCTL_CERT_DIR", "", "The istioctl --cert-dir override"),