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path: root/roles/docker/engine/tasks/main.yml
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---
- name: install docker daemon config
  when: docker_daemon_config is defined
  block:
  - name: create docker config directory
    file:
      name: /etc/docker
      state: directory
      mode: 0700

  - name: write docker daemon config
    copy:
      content: "{{ docker_daemon_config | to_nice_json }}\n"
      dest: /etc/docker/daemon.json
    notify: restart docker

- name: prepare storage volume for /var/lib/docker
  when: docker_storage is defined
  vars:
    storage_volume: "{{ docker_storage | combine({'dest': '/var/lib/docker'}) }}"
  include_role:
    name: "storage/{{ docker_storage.type }}/volume"

- name: prepare package provider
  when: docker_pkg_provider != 'distro'
  include_role:
    name: "apt-repo/{{ docker_pkg_provider }}"

- name: install docker
  apt:
    name:
    - "{{ docker_pkg_name }}{% if docker_pkg_version is defined %}={{ docker_pkg_version }}{% endif %}"
    - "{{ python_basename }}-docker"
    state: present
    force: yes
    ## TODO: remove force once the following changes are available
    ##   https://github.com/ansible/ansible/pull/73629 or https://github.com/ansible/ansible/pull/72562
    ##   https://github.com/ansible/ansible/pull/74852

- name: disable automatic upgrades for docker package
  when: docker_pkg_version is defined
  dpkg_selections:
    name: "{{ docker_pkg_name }}"
    selection: hold

- name: start and enable docker
  service:
    name: docker
    enabled: true
    state: started