Applications not registering to eureka when using docker-compose

Question

I took this example https://github.com/paulc4/microservices-demo and I created 3 docker images from it, with the following Dockerfiles:

springdocker-registration:

<

Answer 1

For those who are working with docker-compose and if in your services yml file you have the following:

eureka:
  client:
    serviceUrl:
      # Will get overridden in docker-compose
      defaultZone: http://localhost:1111/eureka

You can override this in your docker-compose file like below while running docker-compose up

version: "3.3"
services:

 # Other services registered above

 web:
  image: springdocker-web
  environment: 
   # Important for clients to register with eureka
   - eureka.client.serviceUrl.defaultZone=http://registration:8761/eureka/
  ports:
   - "3333:3333"
  depends_on:
   - registration
   - accounts
  links:
   - registration

Tested on Docker version 19.03.8

Answer 2

Since its running in docker, don't use localhost. Docker compose lets you refer to container names.

eureka:
  client:
    serviceUrl:
      defaultZone: http://registration:1111/eureka

Side note: defaultZone must be exact, I spent 2 days wondering why it wouldn't work since intellij auto completes to do default-zone which wont work.