---

- name: "Update the my.cnf"
  template: "src=etc_mysql_my.cnf.j2 dest=/etc/mysql/my.cnf owner=root mode=0644"
  register: "config_file"
  notify:
    - "Restart percona"

- name: "Ensure that percona is running and enabled"
  service:
    name: "mysql"
    state: "started"
    enabled: "yes"
  register: mysql_service

# This service restart is needed when changing default mysql_datadir, mysql_native_password
# and other settings. So better restart when the my.cnf file changes
# Restart when my.cnf has changed and it has not been restarted by the above task
- name: "Restart mysql to apply changes done in my.cnf file"
  service:
    name: "mysql"
    state: "restarted"
  when:
    - config_file.changed
    - mysql_service is defined
    - not mysql_service.changed