post_install() {
  if [ $(ls -A /var/lib/tarantool/) ]; then
    echo 'Tarantool database directory /var/lib/tarantool/ is not empty. Do not create a database.'
    return 0
  fi

  # otherwise create one
  # it is weird but tarantool uses path relative to fs root...
  cd /
  tarantool_box --init-storage
}