---
- 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 ### this does not work on first install because adding the repo might flush handlers...

- name: prepare /var/lib/docker as LVM
  when: docker_lvm is defined
  import_tasks: lvm.yml

- name: prepare /var/lib/docker as ZFS dataset
  when: docker_zfs is defined
  import_tasks: zfs.yml

- 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

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