# apt-get install -y curl openssh-server ca-certificates tzdata perl
# apt-get install -y postfix
# curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.deb.sh | bash
# apt-get install gitlab-ce

- external_url 'https://gitlab.example.com'
+ external_url 'https://hoge.com'

gitlab-ctl reconfigure