machine:
  timezone: Asia/Tokyo
  pre:
    - sudo locale-gen ja_JP.UTF-8
    - sudo service postgresql stop
    - sudo mv /usr/lib/postgresql-9.6/9.6 /usr/lib/postgresql/9.6
    - sudo mv /etc/postgresql-9.6/9.6 /etc/postgresql/9.6
    - sudo service postgresql start 9.6