---
# Copyright 2020 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: Install custom multipath.conf if one is specified
  copy:
    src: "{{ tripleo_multipathd_custom_config_file }}"
    dest: /etc/multipath.conf
    mode: 0644
  when:
    - tripleo_multipathd_custom_config_file|length > 0

- name: Ensure /etc/multipath.conf exists
  when:
    - tripleo_multipathd_custom_config_file|length == 0
  block:
    - name: Check for existing /etc/multipath.conf
      stat:
        path: /etc/multipath.conf
      register: result
      check_mode: false
    - name: Create /etc/multipath.conf if file is missing
      copy:
        src: "{{ role_path }}/files/multipath.conf"
        dest: /etc/multipath.conf
        mode: 0644
      when:
        - not result.stat.exists or result.stat.size == 0

- name: Set setype on /etc/multipath.conf
  file:
    path: /etc/multipath.conf
    setype: container_file_t

- name: Ensure a blacklist section is present
  lineinfile:
    path: /etc/multipath.conf
    regexp: '^blacklist'
    line: 'blacklist {'
  register: blacklist_section

- name: Terminate the blacklist section if one was added
  replace:
    path: /etc/multipath.conf
    regexp: '^(blacklist {)'
    replace: '\1\n}'
  when:
    - blacklist_section.changed

- name: Remove global blacklist if multipathd is enabled
  replace:
    path: /etc/multipath.conf
    regexp: '^blacklist {\n[\s]+devnode \"\.\*\"'
    replace: 'blacklist {'
  when:
    - tripleo_multipathd_enable | bool

- name: Add global blacklist if multipathd is disabled
  lineinfile:
    path: /etc/multipath.conf
    insertafter: '^blacklist'
    regexp: '^[\s]+devnode \"\.\*\"'
    line: '        devnode ".*"'
  when:
    - not (tripleo_multipathd_enable|bool)

- name: Configure /etc/multipath.conf variables
  lineinfile:
    path: /etc/multipath.conf
    insertafter: '^defaults'
    firstmatch: true
    regexp: "^\\s+{{ item.var }}"
    line: "        {{ item.var }} {{ (item.value|bool) | ternary('yes', 'no') }}"
  loop:
    - {var: find_multipaths, value: "{{tripleo_multipathd_find_multipaths}}"}
    - {var: skip_kpartx, value: "{{tripleo_multipathd_skip_kpartx}}"}
    - {var: user_friendly_names, value: "{{tripleo_multipathd_user_friendly_names}}"}
  loop_control:
    index_var: multipath_var_index