---
- 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 /var/lib/docker as LVM
  when: docker_lvm is defined
  block:

  - name: create logical volume
    lvol:
      vg: "{{ docker_lvm.vg }}"
      lv: "{{ docker_lvm.lv }}"
      size: "{{ docker_lvm.size }}"

  - name: create filesystem
    filesystem:
      fstype: "{{ docker_lvm.fs }}"
      dev: "/dev/mapper/{{ docker_lvm.vg | replace('-', '--') }}-{{ docker_lvm.lv | replace('-', '--') }}"

  - name: mount filesytem
    mount:
      src: "/dev/mapper/{{ docker_lvm.vg | replace('-', '--') }}-{{ docker_lvm.lv | replace('-', '--') }}"
      path: /var/lib/docker
      fstype: "{{ docker_lvm.fs }}"
      state: mounted

- name: prepare package provider
  when: docker_pkg_provider != 'distro'
  include_tasks: "{{ docker_pkg_provider }}.yml"

- name: install docker
  apt:
    name: "{{ docker_pkg_name }}{% if docker_pkg_version is defined %}={{ docker_pkg_version }}{% endif %}"
    state: present
    force: yes

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