---
- name: list volume groups
  set_fact: available_vg="{{ item.key }}"
  with_dict: "{{ ansible_lvm.vgs }}"
  when:
    - not available_vg is defined
    - not item.key in ( docker_exclude_vgs | default([]) )
    - (item.value.free_g | int) > (docker_volume_size | default(docker_min_size))

- set_fact: docker_storage_vg="{{ available_vg }}"
  when: (not docker_storage_vg is defined) and (available_vg is defined)

- fail: msg="Can't detect Docker VG"
  when: not docker_storage_vg is defined

- name: check to see if {{ docker_storage_device }} exists
  command: "test -e {{ docker_storage_device }}"
  when: docker_storage_device is defined

- set_fact: docker_storage_config="VG={{ docker_storage_vg }} AUTO_EXTEND_POOL=true"

- set_fact: docker_storage_config="{{ docker_storage_config }} DEVS={{ docker_storage_device }}"
  when: ( docker_storage_device is defined ) and ( ansible_lvm.vgs[docker_storage_vg] is not defined )
  
- name: stop docker
  service: name="docker" state="stopped"

- name: delete /var/lib/docker
  file: path="/var/lib/docker" state=absent

- name: generate docker-storage-setup config file
  copy:
      content: "{{ docker_storage_config }}"
      dest: /etc/sysconfig/docker-storage-setup
      owner: root
      group: root
      mode: 0664

- name: docker storage setup
  command: docker-storage-setup