Boot up with docker compose up --build. The main application will be at localhost:8080, Zipkin at localhost:9411 and Jaeger at localhost:16686.
You can also visit the other 2 microservices at localhost:8081 and localhost:8082.
The first and second project creates a random number and sends down the chain; 0 to 1 and 1 to 2. After visiting the main application, you can see the trace of the 3 microservices at Zipkin and Jaeger.