parameters:
  _param:
    postgresql_server: localhost
    postgresql_exposed_port: 5432
    postgresql_admin_user: postgres
    postgresql_glusterfs_volume_name: postgresql-data
    postgresql_data_mountpoint: /var/lib/postgresql/data
    postgresql_data_directory: ${_param:postgresql_data_mountpoint}/pgdata
    postgresql_major_version: '9.6'