add vhost for node

chain/hop.go

@@ -4,6 +4,7 @@ import "context"
 
 type SelectOptions struct {
 	Addr string
+	Host string
 }
 
 type SelectOption func(*SelectOptions)
@@ -14,6 +15,12 @@ func AddrSelectOption(addr string) SelectOption {
 	}
 }
 
+func HostSelectOption(host string) SelectOption {
+	return func(o *SelectOptions) {
+		o.Host = host
+	}
+}
+
 type Hop interface {
 	Nodes() []*Node
 	Select(ctx context.Context, opts ...SelectOption) *Node

chain/node.go

@@ -14,6 +14,7 @@ type NodeOptions struct {
 	Resolver   resolver.Resolver
 	HostMapper hosts.HostMapper
 	Metadata   metadata.Metadata
+	Host       string
 }
 
 type NodeOption func(*NodeOptions)
@@ -42,6 +43,12 @@ func HostMapperNodeOption(m hosts.HostMapper) NodeOption {
 	}
 }
 
+func HostNodeOption(host string) NodeOption {
+	return func(o *NodeOptions) {
+		o.Host = host
+	}
+}
+
 func MetadataNodeOption(md metadata.Metadata) NodeOption {
 	return func(o *NodeOptions) {
 		o.Metadata = md

chain/router.go

@@ -182,6 +182,7 @@ func (r *Router) dial(ctx context.Context, network, address string) (conn net.Co
 			InterfaceDialOption(r.options.IfceName),
 			SockOptsDialOption(r.options.SockOpts),
 			LoggerDialOption(r.options.Logger),
+			TimeoutDialOption(r.options.Timeout),
 		)
 		if err == nil {
 			break