---
- hosts: all

  vars:
    postgresql_databases:
      - name: example
    postgresql_users:
      - name: jdoe

  pre_tasks:
    - name: Update apt cache.
      apt: update_cache=yes cache_valid_time=600
      when: ansible_os_family == 'Debian'

    - name: Set custom variable name for old CentOS 6 PostgreSQL install.
      set_fact:
        postgresql_global_config_options:
          - option: unix_socket_directory
            value: '{{ postgresql_unix_socket_directories[0] }}'
      when: ansible_os_family == 'RedHat' and ansible_distribution_version.split('.')[0] == '6'

  roles:
    - role_under_test