func isHostIP(ipAddress string) bool {
	host, _, err := net.SplitHostPort(ipAddress)
	if err != nil {
		host = ipAddress
	}
	// Strip off IPv6 zone information.
	if i := strings.Index(host, "%"); i > -1 {
		host = host[:i]
	}
	return net.ParseIP(host) != nil
}

// extractHostPort - extracts host/port from many address formats

	}
	c.clusters = &cd
	return nil
}

func retrieveEndpointAddress(host *admin.HostStatus) string {
	addr := host.Address.GetSocketAddress()
	if addr != nil {
		return addr.Address
	}
	if pipe := host.Address.GetPipe(); pipe != nil {
		return "unix://" + pipe.Path
	}
	if internal := host.Address.GetEnvoyInternalAddress(); internal != nil {
		switch an := internal.GetAddressNameSpecifier().(type) {

		addr := socketAddr.Address
		addrs = append(addrs, addr.GetSocketAddress().Address)
	}

	return addrs
}

func retrieveListenerPort(l *listener.Listener) uint32 {
	return l.Address.GetSocketAddress().GetPortValue()
}

func (c *ConfigWriter) PrintRemoteListenerSummary() error {
	w, listeners, err := c.setupListenerConfigWriter()
	if err != nil {
		return err
	}
	// Sort by port, addr, type

	GCPProject string

	// Istiod address. For MCP may be different than Xds.
	IstiodAddr string
}

// AttachControlPlaneFlags attaches control-plane flags to a Cobra command.
// (Currently just --endpoint)
func (o *CentralControlPlaneOptions) AttachControlPlaneFlags(cmd *cobra.Command) {
	cmd.PersistentFlags().StringVar(&o.Xds, "xds-address", viper.GetString("XDS-ADDRESS"),
		"XDS Endpoint")

type WorkloadFilter struct {
	Address   string
	Node      string
	Verbose   bool
	Namespace string
}

// Verify returns true if the passed workload matches the filter fields
func (wf *WorkloadFilter) Verify(workload *ZtunnelWorkload) bool {
	if wf.Address == "" && wf.Node == "" && wf.Namespace == "" {
		return true
	}

	if wf.Namespace != "" {

)

func TestNatsConnTLSCustomCA(t *testing.T) {
	s, opts := natsserver.RunServerWithConfig(filepath.Join("testdata", "contrib", "nats_tls.conf"))
	defer s.Shutdown()

	clientConfig := &NATSArgs{
		Enable: true,
		Address: xnet.Host{
			Name:      "localhost",
			Port:      (xnet.Port(opts.Port)),
			IsPortSet: true,
		},
		Subject:       "test",
		Secure:        true,

	for i := range listener.listeners {
		addrs = append(addrs, listener.listeners[i].Addr())
	}

	return addrs
}

// TCPOptions specify customizable TCP optimizations on raw socket
type TCPOptions struct {
	UserTimeout int // this value is expected to be in milliseconds
	// When the net.Conn is idle for more than ReadTimeout duration, we close the connection on the client proactively.

		if err != nil {
			return nil, err
		}
		err = fw.Start()
		if err != nil {
			return nil, err
		}
		defer fw.Close()
		xdsOpts.Xds = fw.Address()
		response, err := GetXdsResponse(dr, istioNamespace, tokenServiceAccount, xdsOpts, dialOpts)
		if err != nil {
			return nil, fmt.Errorf("could not get XDS from discovery pod %q: %v", pod.Name, err)
		}

		{xForwardedFor, "8.8.8.8", "8.8.8.8"},                                         // Single address
		{xForwardedFor, "8.8.8.8, 8.8.4.4", "8.8.8.8"},                                // Multiple
		{xForwardedFor, "", ""},                                                       // None
		{xRealIP, "8.8.8.8", "8.8.8.8"},                                               // Single address

	if err != nil {
		p.errorf("bad size for DATA argument: %q", szop)
	}
	op = op[:n-2]
	nameAddr := p.address(op)
	if !p.validSymbol("DATA", &nameAddr, true) {
		return
	}
	name := symbolName(&nameAddr)

	// Operand 1 is an immediate constant or address.
	valueAddr := p.address(operands[1])
	switch valueAddr.Type {
	case obj.TYPE_CONST, obj.TYPE_FCONST, obj.TYPE_SCONST, obj.TYPE_ADDR:
		// OK