openstack-ansible-plugins/roles/glusterfs/tasks/main.yml

---
# Copyright 2022, BBC R&D.
#
# 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: Gather variables for each operating system
  include_vars: "{{ lookup('first_found', params) }}"
  vars:
    params:
      files:
        - "{{ ansible_facts['distribution'] | lower }}-{{ ansible_facts['distribution_version'] | lower }}.yml"
        - "{{ ansible_facts['distribution'] | lower }}-{{ ansible_facts['distribution_major_version'] | lower }}.yml"
        - "{{ ansible_facts['os_family'] | lower }}-{{ ansible_facts['distribution_major_version'] | lower }}.yml"
        - "{{ ansible_facts['distribution'] | lower }}.yml"
        - "{{ ansible_facts['os_family'] | lower }}-{{ ansible_facts['distribution_version'].split('.')[0] }}.yml"
        - "{{ ansible_facts['os_family'] | lower }}.yml"
      paths:
        - "{{ role_path }}/vars"
  tags:
    - always

- name: Enable repos for redhat variants
  when: ansible_facts['pkg_mgr'] == 'dnf'
  block:
    - name: Enable extra repositories
      command: dnf config-manager --set-enabled "{{ item }}"
      changed_when: false
      with_items: "{{ glusterfs_server_dnf_enable }}"

    - name: Install gluster repo packages
      package:
        name: "{{ glusterfs_server_dnf_sig_packages }}"

    - name: Apply systemctl overrides
      import_role:
        name: systemd_service
      vars:
        systemd_services:
          - service_name: systemd-tmpfiles-setup-dev
            load: false
            systemd_overrides_only: true
            systemd_overrides:
              Unit:
                ConditionCapability: ""

- name: Install glusterfs server packages
  package:
    name: "{{ glusterfs_server_distro_packages }}"
    state: "{{ glusterfs_package_state }}"

- name: Drop glusterfs-wait.sh script
  copy:
    src: glusterfs-wait.sh
    dest: /usr/local/sbin
    mode: 0744

- name: Add glusterd.service overrides
  import_role:
    name: systemd_service
  vars:
    systemd_services:
      - service_name: glusterd
        systemd_overrides_only: true
        systemd_overrides:
          Service:
            ExecStartPost: "/usr/local/sbin/glusterfs-wait.sh"

- name: Configure systemd-tmpfiles to create /dev/fuse at boot
  copy:
    content: "c /dev/fuse 0600 - - - 10:229"
    dest: "/etc/tmpfiles.d/openstack-ansible-glusterfs-server.conf"
  when: not (is_metal | default(False))
  register: _glusterfs_server_tmpfiles

- name: Restart systemd-tmpfiles-setup-dev
  service:
    name: "systemd-tmpfiles-setup-dev"
    enabled: yes
    state: restarted
  when:
    - not (is_metal | default(False))
    - _glusterfs_server_tmpfiles is changed

- name: Start glusterfs server
  service:
    name: "{{ glusterfs_server_service }}"
    enabled: true
    state: started

- name: Create gluster peers
  gluster.gluster.gluster_peer:
    nodes: "{{ glusterfs_server_cluster_members }}"
  when: _glusterfs_is_first_play_host

- name: Ensure glusterfs backing directory exists
  file:
    path: "{{ glusterfs_server_backing_dir }}"
    state: directory
  register: _backing_dir_create

- name: Check brick status
  throttle: 1
  command: gluster volume status {{ glusterfs_server_volume_name }} {{ inventory_hostname| regex_replace('_', '-') }}:{{ glusterfs_server_bricks }} detail
  register: _brick_online_status
  changed_when: false
  failed_when: false

#NOTE (jrosser) run this task if we just created the data dir, the volume exists (status was available)
#               and the brick on this node is offline. This covers a destroy/create of an existing host
- name: Reset brick for a replaced node
  vars:
    brick: "{{ inventory_hostname | regex_replace('_', '-') }}:{{ glusterfs_server_bricks }}"
  command: "{{ item }}"
  when:
    - _backing_dir_create is changed
    - _brick_online_status.rc == 0
    - (_brick_online_status.stdout_lines | select('contains', 'Online'))[0] | regex_search('N')
  with_items:
    - gluster volume reset-brick {{ glusterfs_server_volume_name }} {{ brick }} start
    - gluster volume reset-brick {{ glusterfs_server_volume_name }} {{ brick }} {{ brick }} commit force

- name: Create gluster volume
  vars:
    num_cluster_members: "{{ glusterfs_server_cluster_members | length }}"
    cluster_has_replicas: "{{ (glusterfs_server_cluster_members | length) > 1 }}"
  gluster.gluster.gluster_volume:
    state: present
    name: "{{ glusterfs_server_volume_name }}"
    bricks: "{{ glusterfs_server_bricks }}"
    replicas: "{{ cluster_has_replicas | ternary(num_cluster_members, omit) }}"
    cluster: "{{ glusterfs_server_cluster_members | map('regex_replace', '_', '-') | list }}"
    force: true
  when: _glusterfs_is_first_play_host