- name: apt install docker
  tags:
    - never
    - packages
  become: yes
  apt:
    name:
      - docker.io
      - docker-compose
    install_recommends: no

- name: "{{ docker_service__etc }}/{{ service }}"
  become: yes
  file:
    path: "{{ docker_service__etc }}/{{ service }}"
    state: directory

- name: "{{ docker_service__etc }}/{{ service }}/docker-compose.yml"
  become: yes
  template:
    dest: "{{ docker_service__etc }}/{{ service }}/docker-compose.yml"
    src: "{{ template }}"
  notify: systemctl restart
  register: docker_descriptor

- name: "/etc/systemd/system/{{ systemd_unit }}.service"
  become: yes
  copy:
    dest: "/etc/systemd/system/{{ systemd_unit }}.service"
    content: |
      [Unit]
      Description=Docker service: {{ service }}
      After=network-online.target
      After=docker.service
      Requires=docker.service

      [Service]
      WorkingDirectory={{ docker_service__etc }}/{{ service }}/
      ExecStartPre=-/usr/bin/docker-compose stop
      ExecStartPre=-/usr/bin/docker-compose pull
      ExecStart=/usr/bin/docker-compose up -d
      ExecReload=/usr/bin/docker-compose up -d

      [Install]
      WantedBy=multi-user.target
  notify: systemctl restart
  register: systemd_descriptor

- name: systemd daemon-reload
  become: yes
  systemd:
    daemon_reload: yes
  when: systemd_descriptor.changed

- name: systemd start "{{ systemd_unit }}"
  become: yes
  systemd:
    name: "{{ systemd_unit }}"
    enabled: "{{ systemd_enabled }}"
    state: "{{ systemd_state }}"

- set_fact:
    docker_service__restart: "{{ docker_service__restart + [systemd_unit] }}"
  when: (systemd_descriptor.changed or docker_descriptor.changed) and systemd_state == 'started'