replication_replica.yml

---
- name: Check replica replication status
  mysql_replication:
    mode: getreplica
    login_unix_socket: "{{ mariadb_unix_socket }}"
  register: replica
  no_log: true

# For the moment, we have to use a sql command.
# In ansible 2.10, we should be able to use mysql_replication module.
# See https://github.com/ansible/ansible/pull/62648 (and below)
- name: Configure replication on the replica
  command: |
    /usr/bin/mariadb -e "CHANGE MASTER TO master_host='{{ mariadb_replication_master_ip }}',
    master_user='{{ item.name }}', master_password='{{ item.password }}', master_use_gtid=slave_pos"
  loop: "{{ mariadb_replication_user }}"
  when:
    - not replica.Is_Replica
  no_log: true

# # Following (not tested) should work on ansible 2.10
# - name: Configure replication on the replica
#   mysql_replication:
#     mode: changemaster
#     master_host: "{{ mariadb_replication_master_ip }}"
#     master_user: "{{ item.name }}"
#     master_password: "{{ item.password }}"
#     master_use_gtid: "{{ mariadb_replication_gtid | default('slave_pos') }}
#     login_unix_socket: "{{ mariadb_unix_socket }}"
#   loop: "{{ mariadb_replication_user }}"
#   when:
#     - not replica.Is_Slave
#   no_log: true

- name: Reset replica replication
  mysql_replication:
    mode: resetreplica
    login_unix_socket: "{{ mariadb_unix_socket }}"
  when:
    - not replica.Is_Replica

- name: Check replica replication status (second time)
  mysql_replication:
    mode: getreplica
    login_unix_socket: "{{ mariadb_unix_socket }}"
  register: replica2
  no_log: true

- name: Start replica replication
  mysql_replication:
    mode: startreplica
    login_unix_socket: "{{ mariadb_unix_socket }}"
  when:
    - replica2.Slave_IO_Running == "No"