Spring Boot makes it easy to setup and start a microservice project. But in microservice’s world, it is hard to test changes in all architecture. Because it is hard to setup same environment in local. So each service should responsible their own changes and guarantee that it won’t break any RPC call or business logic with new changes. Integration tests help in that manner to release the changes in more confident. So it is important to create an environment which is as much as close to production.