---
# Run all plays as root.
- hosts: databases
  become: True
  roles:
      - mariadb
  vars:
      hostname_node0: "{{ hostvars[groups['databases'][0]]['ansible_hostname'] }}"
      hostname_node1: "{{ hostvars[groups['databases'][1]]['ansible_hostname'] }}"
      hostname_node2: "{{ hostvars[groups['databases'][2]]['ansible_hostname'] }}"
      ip_node0: "{{ hostvars[groups['databases'][0]]['listen_ip'] | default(hostvars[groups['databases'][0]]['ansible_default_ipv4']['address']) }}"
      ip_node1: "{{ hostvars[groups['databases'][1]]['listen_ip'] | default(hostvars[groups['databases'][1]]['ansible_default_ipv4']['address']) }}"
      ip_node2: "{{ hostvars[groups['databases'][2]]['listen_ip'] | default(hostvars[groups['databases'][2]]['ansible_default_ipv4']['address']) }}"