ansible-mysql/tasks/galera/nodes.yml

---
- name: SET_FACT | Prepare mark var
  ansible.builtin.set_fact:
    __mark: "{{ mariadb_datadir }}/.ansible_galera_boostrap"

- name: STAT | Bootstrap mark
  ansible.builtin.stat:
    path: "{{ __mark }}"
  register: s

- name: COMMAND | GET debian.cnf from primary node
  ansible.builtin.command: cat /etc/mysql/debian.cnf
  register: debiancnf
  delegate_to: '{{ mariadb_galera_primary_node }}'
  changed_when: false

- name: COMMAND | Get current debian.cnf
  ansible.builtin.command: cat /etc/mysql/debian.cnf
  register: ondc
  changed_when: false

- block:

  - name: SERVICE | Stop MariaDB
    ansible.builtin.service:
      name: "{{ mariadb_service_name }}"
      state: stopped

  - name: COPY | Paste primary node's debian.cnf
    ansible.builtin.copy:
      content: "{{ debiancnf.stdout }}"
      dest: /etc/mysql/debian.cnf
      mode: 0600
      owner: root
      group: root
    register: paste

  - name: SERVICE | Start MariaDB
    ansible.builtin.service:
      name: "{{ mariadb_service_name }}"
      state: started

  when: debiancnf.stdout != ondc.stdout

- name: SERVICE | Restart MariaDB if needed
  ansible.builtin.service:
    name: "{{ mariadb_service_name }}"
    state: restarted
  throttle: 1
  when: not s.stat.exists or mariadb_galera_resetup

- name: COMMAND | Create Bootstrap mark
  ansible.builtin.command: "touch {{ __mark }}"
  args:
    creates: "{{ __mark }}"