fix proxy change not work bugs

gateway/controller/controller.go

@@ -154,6 +154,10 @@ func (gwc *GWController) syncGateway(key interface{}) error {
 		L7VS:      l7sv,
 		L4VS:      l4sv,
 	}
+
+	logrus.Debugf("gwc.rcfig : %+v", gwc.rcfg)
+	logrus.Debugf("currentConfig: %+v", currentConfig)
+
 	if gwc.rcfg.Equals(currentConfig) {
 		logrus.Info("No need to update running configuration.")
 		// refresh http pools dynamically

gateway/controller/openresty/template/templete_manage.go

@@ -109,9 +109,6 @@ func (n *NginxConfigFileTemplete) NewNginxTemplate(data *model.Nginx) error {
 
 //WriteServer write server config
 func (n *NginxConfigFileTemplete) WriteServer(c option.Config, configtype, tenant string, servers ...*model.Server) error {
-	if servers == nil || len(servers) < 1 {
-		return nil
-	}
 	if tenant == "" {
 		tenant = "default"
 	}
@@ -125,6 +122,10 @@ func (n *NginxConfigFileTemplete) WriteServer(c option.Config, configtype, tenan
 	defer n.writeLocks[tenant].Unlock()
 	serverConfigFile := path.Join(n.configFileDirPath, configtype, tenant, "servers.conf")
 	first := true
+	if servers == nil || len(servers) < 1 {
+		logrus.Warnf("%s proxy is empty, nginx server[%s] will clean up", tenant, serverConfigFile)
+		return n.writeFile(first, []byte{}, serverConfigFile)
+	}
 	for i, server := range servers {
 		body, err := n.serverTmpl.Write(&NginxServerContext{
 			Server: servers[i],

gateway/v1/model.go

@@ -18,6 +18,8 @@
 
 package v1
 
+import "github.com/Sirupsen/logrus"
+
 //LoadBalancingType Load Balancing type
 type LoadBalancingType string
 
@@ -125,7 +127,7 @@ func (cfg *Config) Equals(c *Config) bool {
 			return false
 		}
 	}
-
+	logrus.Debugf("len if cnf.L4VS = %d, l4vs = %d", len(cfg.L4VS), len(c.L4VS))
 	if len(cfg.L4VS) != len(c.L4VS) {
 		return false
 	}