Implement ConfigurationDiscoveryService interface (#95)

* Implement ConfigurationDiscoveryService interface

* Fix lint

* add license

* add change log

* fix lint

* fix lint

CHANGELOG.md

@@ -34,3 +34,4 @@ your changes, such as:
 
 - [public] [both] [updated] add a new feature
 ## [Unreleased]
+- [public] [both] [fixed] Fix error that skywalking v3 plugin doesn't implement ConfigurationDiscoveryService interface

plugins/input/skywalkingv3/configuration_discovery_handler.go

@@ -0,0 +1,29 @@
+// Copyright 2021 iLogtail Authors
+//
+// 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 skywalkingv3
+
+import (
+	"context"
+
+	v3 "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/agent/configuration/v3"
+	v3command "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/common/v3"
+)
+
+type ConfigurationDiscoveryHandler struct {
+}
+
+func (*ConfigurationDiscoveryHandler) FetchConfigurations(context context.Context, config *v3.ConfigurationSyncRequest) (*v3command.Commands, error) {
+	return &v3command.Commands{}, nil
+}

plugins/input/skywalkingv3/input_skywalking_agent_v3.go

@@ -15,14 +15,16 @@
 package skywalkingv3
 
 import (
+	"net"
+
+	"google.golang.org/grpc"
+
 	"github.com/alibaba/ilogtail"
+
+	configuration "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/agent/configuration/v3"
 	agent "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/language/agent/v3"
 	profile "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/language/profile/v3"
 	management "github.com/alibaba/ilogtail/plugins/input/skywalkingv3/skywalking/network/management/v3"
-
-	"net"
-
-	"google.golang.org/grpc"
 )
 
 type Input struct {
@@ -65,7 +67,7 @@ func (r *Input) Start(collector ilogtail.Collector) error {
 	agent.RegisterTraceSegmentReportServiceServer(r.grpcServer, &TracingHandler{r.ctx, collector, resourcePropertiesCache, InitComponentMapping(r.ComponentMapping)})
 	management.RegisterManagementServiceServer(r.grpcServer, &ManagementHandler{r.ctx, collector, resourcePropertiesCache})
 	profile.RegisterProfileTaskServer(r.grpcServer, &ProfileHandler{})
-
+	configuration.RegisterConfigurationDiscoveryServiceServer(r.grpcServer, &ConfigurationDiscoveryHandler{})
 	if r.Address == "" {
 		r.Address = "0.0.0.0:11800" // skywalking collector default port
 	}