Introduce the Customized ALS Protocol for Satellite (#8193)

CHANGES.md

@@ -60,6 +60,7 @@ Release Notes.
 * Upgrade grpc-java to 1.42.1 and protoc to 3.19.1 to allow using native Mac osx-aarch_64 artifacts.
 * Fix TopologyQuery.loadEndpointRelation bug.
 * Support using IoTDB as a new storage option.
+* Add customized envoy ALS protocol receiver for satellite transmit batch data.
 
 #### UI
 

oap-server/server-receiver-plugin/envoy-metrics-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/envoy/AccessLogServiceGRPCHandler.java

@@ -95,7 +95,12 @@ public class AccessLogServiceGRPCHandler extends AccessLogServiceGrpc.AccessLogS
 
     @Override
     public StreamObserver<StreamAccessLogsMessage> streamAccessLogs(
-        StreamObserver<StreamAccessLogsResponse> responseObserver) {
+            StreamObserver<StreamAccessLogsResponse> responseObserver) {
+        return streamAccessLogs(responseObserver, false);
+    }
+
+    public StreamObserver<StreamAccessLogsMessage> streamAccessLogs(
+        StreamObserver<StreamAccessLogsResponse> responseObserver, boolean alwaysAnalyzeIdentity) {
         return new StreamObserver<StreamAccessLogsMessage>() {
             private volatile boolean isFirst = true;
             private Role role;
@@ -105,7 +110,7 @@ public class AccessLogServiceGRPCHandler extends AccessLogServiceGrpc.AccessLogS
             public void onNext(StreamAccessLogsMessage message) {
                 HistogramMetrics.Timer timer = histogram.createTimer();
                 try {
-                    if (isFirst) {
+                    if (isFirst || (alwaysAnalyzeIdentity && message.hasIdentifier())) {
                         identifier = message.getIdentifier();
                         isFirst = false;
                         role = Role.NONE;

oap-server/server-receiver-plugin/envoy-metrics-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/envoy/EnvoyMetricReceiverProvider.java

@@ -84,6 +84,7 @@ public class EnvoyMetricReceiverProvider extends ModuleProvider {
         final AccessLogServiceGRPCHandler handler = new AccessLogServiceGRPCHandler(getManager(), config);
         service.addHandler(handler);
         service.addHandler(new AccessLogServiceGRPCHandlerV3(handler));
+        service.addHandler(new SatelliteAccessLogServiceGRPCHandlerV3(handler));
     }
 
     @Override

oap-server/server-receiver-plugin/envoy-metrics-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/envoy/SatelliteAccessLogServiceGRPCHandlerV3.java

+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.skywalking.oap.server.receiver.envoy;
+
+import io.envoyproxy.envoy.service.accesslog.v3.StreamAccessLogsMessage;
+import io.envoyproxy.envoy.service.accesslog.v3.StreamAccessLogsResponse;
+import io.grpc.stub.StreamObserver;
+import lombok.RequiredArgsConstructor;
+import org.apache.skywalking.satellite.envoy.accesslog.v3.SatelliteAccessLogServiceGrpc;
+
+@RequiredArgsConstructor
+public class SatelliteAccessLogServiceGRPCHandlerV3 extends SatelliteAccessLogServiceGrpc.SatelliteAccessLogServiceImplBase {
+    private final AccessLogServiceGRPCHandler delegate;
+
+    @Override
+    public StreamObserver<StreamAccessLogsMessage> streamAccessLogs(StreamObserver<StreamAccessLogsResponse> responseObserver) {
+        return delegate.streamAccessLogs(responseObserver, true);
+    }
+}

oap-server/server-receiver-plugin/receiver-proto/src/main/proto/satellite/envoy/accesslog/v3/als.proto

+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.
+// 
+
+syntax = "proto3";
+
+package satellite.envoy.accesslog.v3;
+
+import "envoy/service/accesslog/v3/als.proto";
+
+option java_package = "org.apache.skywalking.satellite.envoy.accesslog.v3";
+option java_outer_classname = "SatelliteAlsProto";
+option java_multiple_files = true;
+option java_generic_services = true;
+
+// [#protodoc-title: Satellite gRPC Access Log Service (ALS)]
+
+// The new Envoy ALS protocol, work for satellite transmit the ALS message to oap.
+service SatelliteAccessLogService {
+  // Use the same parameters to transmit access log messages.
+  // The only difference is that the identity information (StreamAccessLogsMessage#identity) may occur on each message.
+  // Rely on the streaming messages are orderly, so there will be no problems with message processing.
+  // Therefore, when the satellite transmits the ALS message, it does not need to open, send and close the stream for each different identity (envoy).
+  // As a result, unnecessary streaming operation requests could be reduced, and the satellite becomes more stable when the satellite sends requests to the upstream.
+  // Especially when the number of envoys increases, the optimization becomes more obvious.
+  rpc StreamAccessLogs(stream .envoy.service.accesslog.v3.StreamAccessLogsMessage) returns (.envoy.service.accesslog.v3.StreamAccessLogsResponse) {
+  }
+}