hpc-cloud/roles/mariadb/tasks/main.yml

# Install a docker based mariadb.
---
- name: include secrets
  include_vars:
    file: ../../secrets.yml
    name: secrets

- name: install service file.
  template:
    src: templates/mysql.service
    dest: /etc/systemd/system/mysql.service
    mode: 644
    owner: root
    group: root

- name: start service at boot.
  command: systemctl reenable mysql.service

- name: make mariadb settings volume
  file:
    path: "{{ item }}"
    state: directory
    mode: 0777
  with_items:
      - /srv/mariadb/lib/mysql
      - /srv/mariadb/etc/mysql

- name: place settings file
  copy:
    src: files/my.cnf
    dest: /srv/mariadb/etc/mysql
    mode: 660

- name: Set galara.cnf on first node if we have at least three nodes.
  copy:
    src: files/galera-master.cnf
    dest: /srv/mariadb/etc/mysql/conf.d/galera.cnf
    mode: 660
  when: ansible_nodename == hostname_node0 and hostvars[groups['mariadb']]|length >= 3

- name: Set galara.cnf on other nodes if we have at least three nodes.
  copy:
    src: files/galera-slave.cnf
    dest: /srv/mariadb/etc/mysql/conf.d/galera.cnf
    mode: 660
  when: ansible_nodename != hostname_node0 and hostvars[groups['mariadb']]|length >= 3

- command: systemctl daemon-reload

- name: make sure service is started
  systemd:
    name: mysql.service
    state: started