Sample

Strucure

Say you have this setup for two containers in a repo:

  • backend/
    • Dockerfile
    • index.js
  • nginx/
    • Dockerfile
    • index.js
  • .env
  • common.yml
  • docker-compose.yml

Configs

Here is the content to tie the containers together:

  • common.yml 
      version: '2'

  services:
    base:
      build: .
      volumes:
        - "backend:/usr/src/server"
  • docker-compose.yml 
      version: "2"

  services:
    backend:
      extends:
        file: common.yml
        service: base
      build:
        context: backend
        dockerfile: Dockerfile
      env_file: .env
      ports:
        - "127.0.0.1:5000:5000"
      command: npm run start

    nginx:
      extends:
        file: common.yml
        service: base
      build:
        context: nginx
        dockerfile: Dockerfile
      ports:
        - "80:80"
      links:
        - backend:backend
      env_file: .env