Support nacos discovery (#108)

registry/memory/cache.go

@@ -1,3 +1,17 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 package memory
 
 import (
@@ -7,6 +21,7 @@ import (
 	"time"
 
 	"istio.io/api/networking/v1alpha3"
+	"istio.io/pkg/log"
 
 	"github.com/alibaba/higress/pkg/common"
 )
@@ -86,6 +101,8 @@ func (s *store) UpdateServiceEntryWrapper(service string, data *ServiceEntryWrap
 		data.SetCreateTime(time.Now())
 	}
 
+	log.Debugf("mcp service entry update, name:%s, data:%v", service, data)
+
 	s.toBeUpdated = append(s.toBeUpdated, data)
 	s.sew[service] = data
 }