- name: Create dedicated log directory
  file: path={{ postgres_log_dir }} state=directory

- name: Check /var/log/postgresql
  stat: path=/var/log/postgresql
  register: var_log_postgresql

- name: Move /var/log/postgresql directory if not a link
  command: mv /var/log/postgresql /var/log/old-postgresql
  when: var_log_postgresql.stat.isdir is defined and var_log_postgresql.stat.isdir

- name: Create a symlink so regular log path points to dedicated log directory
  file: src={{ postgres_log_dir }} dest=/var/log/postgresql state=link