Setting up a Netflix Eureka server

In this section, we will learn how to set up a Netflix Eureka server for service discovery. Setting up a Netflix Eureka server using Spring Cloud is really easy – just follow these steps:

1. Create a Spring Boot project using Spring Initializr, as described in Chapter 3, Creating a Set of Cooperating Microservices, in the Using Spring Initializr to generate skeleton code section.
2. Add a dependency to spring-cloud-starter-netflix-eureka-server.
3. Add the @EnableEurekaServer annotation to the application class.
4. Add a Dockerfile, similar to the Dockerfiles that are used for our microservices, with the exception that we export the default Eureka port, 8761, instead of the default port for our microservices, 8080.
5. Add the Eureka server to our three Docker Compose files, that is, docker-compose.yml, docker-compose-partitions.yml, and docker-compose-kafka.yml, like this:

eureka:
  build: spring-cloud/eureka-server
  mem_limit: 512m
  ports:
    - "...