- name: Create dedicated data directory
  file: path={{ postgres_data_dir }} state=directory owner=postgres group=postgres

- name: Check /var/lib/postgresql directory
  stat: path=/var/lib/postgresql/
  register: var_lib_postgresql

- name: Create a symlink between regular data directory and dedicated one
  file: src={{ postgres_data_dir }} dest=/var/lib/postgresql state=link
  when: not var_lib_postgresql.stat.exists