---
- include_role:
    name: evolix/apt
    tasks_from: backports.yml
  tags:
  - packages

- name: Prefer python-docker package from jessie-backports
  copy:
    src: docker_preferences
    dest: /etc/apt/preferences.d/999-docker
    force: yes
    mode: "0640"
  register: docker_apt_preferences
  tags:
  - packages

- name: update apt
  apt:
    update_cache: yes
  when: docker_apt_preferences | changed
  tags:
  - packages