kolla-ansible/ansible/roles/mariadb/tasks/bootstrap.yml

---
- name: Cleaning up temp file on localhost
  local_action: file path=/tmp/kolla_mariadb_cluster state=absent
  changed_when: False
  always_run: True
  run_once: True

- name: Creating temp file on localhost
  local_action: copy content=None dest=/tmp/kolla_mariadb_cluster mode=0600
  changed_when: False
  always_run: True
  run_once: True

- name: Creating mariadb volume
  kolla_docker:
    action: "create_volume"
    common_options: "{{ docker_common_options }}"
    name: "mariadb"
  register: mariadb_volume

- name: Writing hostname of host with existing cluster files to temp file
  local_action: copy content={{ ansible_hostname }} dest=/tmp/kolla_mariadb_cluster mode=0600
  changed_when: False
  always_run: True
  when: not mariadb_volume | changed

- name: Registering host from temp file
  set_fact:
    delegate_host: "{{ lookup('file', '/tmp/kolla_mariadb_cluster') }}"

- name: Cleaning up temp file on localhost
  local_action: file path=/tmp/kolla_mariadb_cluster state=absent
  changed_when: False
  always_run: True
  run_once: True

- name: Starting MariaDB bootstrap container
  kolla_docker:
    action: "start_container"
    common_options: "{{ docker_common_options }}"
    environment:
      KOLLA_BOOTSTRAP:
      KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
      DB_ROOT_PASSWORD: "{{ database_password }}"
      DB_MAX_TIMEOUT: "{{ database_max_timeout }}"
    image: "{{ mariadb_image_full }}"
    labels:
      BOOTSTRAP:
    name: "mariadb"
    restart_policy: "never"
    volumes:
      - "{{ node_config_directory }}/mariadb/:{{ container_config_directory }}/:ro"
      - "mariadb:/var/lib/mysql"
  when:
    - delegate_host == 'None'
    - inventory_hostname == groups['mariadb'][0]

- name: Waiting for MariaDB service to be ready
  command: "docker exec mariadb ls /var/lib/mysql/mariadb.pid"
  register: bootstrap_result
  when:
    - delegate_host == 'None'
    - inventory_hostname == groups['mariadb'][0]
  until: bootstrap_result | success
  changed_when: False
  retries: 6
  delay: 10