如何在我的docker-compose.yml文件中指定服务，该服务在docker hub中具有自己的docker-compose.yml文件？

Question

So I am trying to set up a few services in my local docker environment. One of the services, as defined in my docker-compose.yml file, is as follows:

version: "3"

services:
  solr:
    image: solr:latest
    ports:
      - "8983:8983"
    container_name: solr

...which is pretty straightforward.

However, I also want to set up another service that has its own docker-compose.yml in it. If I simply specify a FROM in the Dockerfile for this service, it doesn't work as expected as the repo's docker-compose.yml includes services from other repositories as well.

What is the right way to configure such a service that has its own docker-compose.yml file?

Answer 1

Use extend in yml file to call another docker-compose file. When defining any service in docker-compose.yml, you can declare that you are extending another service like this:

 web:
   extends:
     file: common-services.yml
     service: webapp

Ref : https://docs.docker.com/compose/extends/#understand-the-extends-configuration

Note : extend option is removed from docker-compose version-3 and it is available only in version-2

Ref : https://docs.docker.com/compose/extends/#extending-services