First attempt to implement default network interface

network/options.go

@@ -3,6 +3,10 @@ package network
 import (
 	"github.com/micro/go-micro/network/resolver"
 	"github.com/micro/go-micro/network/resolver/dns"
+	"github.com/micro/go-micro/proxy"
+	"github.com/micro/go-micro/proxy/mucp"
+	"github.com/micro/go-micro/router"
+	"github.com/micro/go-micro/tunnel"
 )
 
 type Option func(*Options)
@@ -13,6 +17,12 @@ type Options struct {
 	Name string
 	// Address to bind to
 	Address string
+	// Tunnel is network tunnel
+	Tunnel tunnel.Tunnel
+	// Router is network router
+	Router router.Router
+	// Proxy is network proxy
+	Proxy proxy.Proxy
 	// Resolver is network resolver
 	Resolver resolver.Resolver
 }
@@ -31,6 +41,27 @@ func Address(a string) Option {
 	}
 }
 
+// Tunnel sets the network tunnel
+func Tunnel(t tunnel.Tunnel) Option {
+	return func(o *Options) {
+		o.Tunnel = t
+	}
+}
+
+// Router sets the network router
+func Router(r router.Router) Option {
+	return func(o *Options) {
+		o.Router = r
+	}
+}
+
+// Proxy sets the network proxy
+func Proxy(p proxy.Proxy) Option {
+	return func(o *Options) {
+		o.Proxy = p
+	}
+}
+
 // Resolver is the network resolver
 func Resolver(r resolver.Resolver) Option {
 	return func(o *Options) {
@@ -43,6 +74,9 @@ func DefaultOptions() Options {
 	return Options{
 		Name:     DefaultName,
 		Address:  DefaultAddress,
+		Tunnel:   tunnel.NewTunnel(),
+		Router:   router.DefaultRouter,
+		Proxy:    mucp.NewProxy(),
 		Resolver: &dns.Resolver{},
 	}
 }