---
- hosts: all
  roles:
    - role: common
      sudo: true

- hosts: web_app
  roles:
    - role: dev-tools
    - role: web-app-conf

- hosts: redis
  roles:
    - role: angstwad.docker_ubuntu
      sudo: true
  tasks:
    - name: redis container
      sudo: true
      docker:
        name: redis-service
        image: redis:3
        command: redis-server
        state: started
        expose: 6379
        ports:
         - "{{ REDIS.PORT }}:6379" # see group_vars/all
        docker_api_version: 1.18