---
# Copyright 2019 Red Hat, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.

- name: Load vars if needed
  when: tripleo_podman_purge_packages is undefined or tripleo_podman_purge_packages|length == 0
  import_tasks: load_vars.yaml

- name: Check if docker has some data
  stat:
    path: /var/lib/docker
  register: docker_path_stat

- name: Docker purge block
  when:
    - docker_path_stat.stat.exists | bool
  become: true
  block:
    - name: Check docker service state
      systemd:
        name: docker
      register: docker_service_state

    - name: Run docker system prune
      shell: docker system prune -a -f
      when:
        - (docker_service_state.status['SubState'] | lower) == 'running'

    - name: Stop and disable Docker service
      systemd:
        name: docker
        state: stopped
        enabled: false
      when:
        - (docker_service_state.status['ActiveState'] | lower) != 'inactive'

    - name: Uninstall Docker rpm
      package:
        name: "{{ tripleo_podman_purge_packages }}"
        state: absent

    - name: Refresh hardware facts
      setup:
        gather_subset:
          - hardware

    - name: Un-mount docker directories
      mount:
        path: "{{ item.mount }}"
        state: unmounted
      loop: "{{ ansible_mounts | selectattr('mount', 'search', 'docker') | list }}"

    - name: Purge /var/lib/docker
      file:
        path: /var/lib/docker
        state: absent