---
- name: allow apt to use a repository over https (debian)
  package:
    name: "{{ item }}"
    state: present
    update_cache: yes
  with_items:
    - apt-transport-https
    - ca-certificates
    - curl
    - software-properties-common

- name: add docker's gpg key
  apt_key:
    url: https://apt.dockerproject.org/gpg
    state: present

- name: add docker and debian testing repository
  apt_repository:
    repo: "{{ item }}"
    state: present
    update_cache: no
  register: add_docker_apt_repo
  with_items:
    - "deb https://apt.dockerproject.org/repo/ debian-{{ ansible_distribution_release }} main"
    - "deb http://http.us.debian.org/debian/ testing contrib main"

- name: update apt cache
  apt:
    update_cache: yes
  when: add_docker_apt_repo | changed
  register: update_docker_apt_cache
  until: update_docker_apt_cache | success
  retries: 5
  delay: 2

- name: install pip from testing on debian
  package:
    name: python-pip
    state: present
    default_release: testing
    update_cache: yes

- name: install docker-py via pip for debian
  pip:
    name: docker-py
    state: latest

- name: install docker on debian
  package:
    name: "{{ 'docker-ce' if ansible_architecture == 'aarch64' else 'docker-engine' }}"
    state: present
    update_cache: yes

# NOTE (jimcurtis): need at least version 1.9.0 of six or we get:
# re:NameError: global name 'DEFAULT_DOCKER_API_VERSION' is not defined
- name: install six via pip
  pip:
    name: six
    version: 1.9.0