derXear / opentracing-spring-boot-jaeger-example

OpenTracing with Spring Boot for Jaeger

OpenTracing Spring Boot example with Jaeger

In this example we are running 2 services:

• hello-service
• greetings-service

Both are using java-spring-jaeger by including the following dependency

<dependency>
    <groupId>io.opentracing.contrib</groupId>
    <artifactId>opentracing-spring-jaeger-web-starter</artifactId>
    <version>1.0.3</version>
</dependency>

Hello service will run on port 8888 and exposes the enpoint /hello. This endpoint returns the String "Hello from Service"

Greetings service will run on port 8080 and exposes the enpoint /greetings/hello. When calling this endpoint, this service calls the hello-service and returns the String received in the response.

When a request is processed, traces are sent to the Jaeger tool, where you get a detailed view of the process. You can access the Jaeger UI via the following link http://localhost:16686/

Build/run the example

Example can be run with docker-compose. Build:

docker-compose build

Run:

docker-compose up

Call endpoint: http://localhost:8080/greetings/hello

and you will see the traces by accessing to Jaeger at http://localhost:16686/