---
- 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

# TODO(SamYaple): Improve failed_when check
- name: Checking if a previous cluster exists
  command: docker exec mariadb stat /var/lib/mysql/grastate.dat
  register: exists
  changed_when: False
  failed_when: False
  always_run: True
  run_once: True

- 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: exists.rc == 0

- 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 }}"
    image: "{{ mariadb_image_full }}"
    name: "mariadb"
    restart_policy: "never"
    volumes:
      - "{{ node_config_directory }}/mariadb/:{{ container_config_directory }}/:ro"
      - "mariadb:/var/lib/mysql"
  when: delegate_host == 'None' and inventory_hostname == groups['mariadb'][0]

- name: Sleeping for 15 seconds while the cluster starts
  command: sleep 15
  changed_when: False
  when: delegate_host == 'None' and inventory_hostname == groups['mariadb'][0]