Feature: dial different NIC for all proxies (#1714)

component/dialer/options.go

@@ -1,29 +1,27 @@
 package dialer
 
-var DefaultOptions []Option
+import "go.uber.org/atomic"
 
-type config struct {
-	skipDefault   bool
+var (
+	DefaultOptions   []Option
+	DefaultInterface = atomic.NewString("")
+)
+
+type option struct {
 	interfaceName string
 	addrReuse     bool
 }
 
-type Option func(opt *config)
+type Option func(opt *option)
 
 func WithInterface(name string) Option {
-	return func(opt *config) {
+	return func(opt *option) {
 		opt.interfaceName = name
 	}
 }
 
 func WithAddrReuse(reuse bool) Option {
-	return func(opt *config) {
+	return func(opt *option) {
 		opt.addrReuse = reuse
 	}
 }
-
-func WithSkipDefault(skip bool) Option {
-	return func(opt *config) {
-		opt.skipDefault = skip
-	}
-}