- name: Install PostgreSQL
  apt:
    name: postgresql
    state: present

- name: Trust connections to PostgreSQL from Docker
  postgresql_pg_hba:
    dest: "{{ postgresql_config }}"
    contype: host
    databases: all
    users: all
    address: "172.16.0.0/12"
    method: trust
  register: postgresql_hba

- name: Change PostgreSQL listen addresses
  postgresql_set:
    name: listen_addresses
    value: "{{ postgresql_listen }}"
  become: true
  become_user: postgres
  register: postgresql_config

- name: Reload PostgreSQL
  service:
    name: postgresql
    state: reloaded
  when: postgresql_hba.changed and not postgresql_config.changed

- name: Restart PostgreSQL
  service:
    name: postgresql
    state: restarted
  when: postgresql_config.changed