Project structure

.
├── grpc-client
│   ├── Dockerfile
│   ...
├── grpc-server
│   ├── Dockerfile
│   ...
├── docker-compose.yaml
|
└── README.md

Prerequisites

• Make sure that you have Docker and Docker Compose installed
  • Windows or macOS: Install Docker Desktop
  • Linux: Install Docker and then Docker Compose

Start project

Start project in local

• Start Jaeger server

docker run -d --name jaeger \
  -p 5775:5775/udp \
  -p 6831:6831/udp \
  -p 6832:6832/udp \
  -p 5778:5778 \
  -p 16686:16686 \
  -p 14268:14268 \
  -p 14250:14250 \
  -p 9411:9411 \
  jaegertracing/all-in-one:1.25

• Go to http://localhost:16686/

• Start client service

$ cd grpc-client
$ ../mvnw clean package
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  28.453 s
[INFO] Finished at: 2022-07-27T13:04:47+07:00
[INFO] ------------------------------------------------------------------------
$ ../mvnw spring-boot:run
2022-07-27 13:06:59,292 INFO DirectJDKLog [main] Starting ProtocolHandler ["http-nio-8081"]
2022-07-27 13:06:59,391 INFO TomcatWebServer [main] Tomcat started on port(s): 8081 (http) with context path ''
2022-07-27 13:06:59,429 INFO StartupInfoLogger [main] Started GrpcClientApplication in 3.547 seconds (JVM running for 3.999)
...

• Start server service

$ cd grpc-server
$ ../mvnw clean package
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  19.436 s
[INFO] Finished at: 2022-07-27T13:07:59+07:00
[INFO] ------------------------------------------------------------------------
$ ../mvnw spring-boot:run
...
2022-07-27 13:09:02,461 INFO GrpcServerLifecycle [main] gRPC Server started, listening on address: *, port: 8082
2022-07-27 13:09:02,474 INFO StartupInfoLogger [main] Started GrpcServerApplication in 3.417 seconds (JVM running for 3.979)

Start project in docker

• Start project

$ docker-compose up -d

• Some request & test

• Stop project

$ docker-compose down

Send request & watch tracer

• Send test request

$ curl http://localhost:8081/hello
...
Hello ==> server

• Log service grpc-client

2022-07-27 13:21:18,370 INFO LoggingReporter [http-nio-8081-exec-1] Span reported: 59bf20f3425133ec:58979b5c139c85c1:59bf20f3425133ec:1 - HelloWorld/SayHello
2022-07-27 13:21:18,415 INFO LoggingReporter [http-nio-8081-exec-1] Span reported: 59bf20f3425133ec:59bf20f3425133ec:0:1 - helloword

• Log service grpc-server

2022-07-27 13:21:18,368 INFO LoggingReporter [grpc-default-executor-0] Span reported: 59bf20f3425133ec:35b71564d2eac86e:58979b5c139c85c1:1 - HelloWorld/SayHello

• Go to http://localhost:16686/

Contribute

Reference