---
# We need to adjust docker_min_size if docker_volume_size set (min_size is just given in GB, but volume size
# support suffixes and we need to handle this).
- 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_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 }} DATA_SIZE={{ docker_volume_size | default(docker_min_size ~ 'G') }} AUTO_EXTEND_POOL=true"
- set_fact: docker_storage_config="{{ docker_storage_config }} DOCKER_ROOT_VOLUME=yes DOCKER_ROOT_VOLUME_SIZE={{ docker_root_volume_size | default(docker_min_size ~ 'G') }}"
  when: docker_setup_root

- 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: "delete {{ docker_lv }} lv"
  lvol: vg="{{ ansible_lvm['lvs'][docker_lv]['vg'] }}" lv="{{ docker_lv }}" state="absent" force="yes"
  when: ansible_lvm['lvs'][docker_lv] is defined

- name: delete docker-pool lv
  lvol: vg="{{ ansible_lvm['lvs']['docker-pool']['vg'] }}" lv="docker-pool" state="absent" force="yes"
  when: ansible_lvm['lvs']['docker-pool'] is defined

- name: unmount docker partition
  mount: path="/var/lib/docker" state="unmounted" 

- name: "delete {{ docker_root_lv }} lv"
  lvol: vg="{{ ansible_lvm['lvs'][docker_root_lv]['vg'] }}" lv="{{ docker_root_lv }}" state="absent" force="yes"
  when: ansible_lvm['lvs'][docker_root_lv] is defined

- name: delete docker-pool lv
  lvol: vg="{{ ansible_lvm['lvs']['docker-root-lv']['vg'] }}" lv="docker-root-lv" state="absent" force="yes"
  when: ansible_lvm['lvs']['docker-root-lv'] is defined


- name: remove old configuration
  file: path="/etc/sysconfig/docker-storage" 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