UPDATED: Another way is to install using docker, see here

看了一下GitLab的安装方法，就被打败了，后来发现了一个官方推荐的方法

GitLab packages (beta) These packages contain GitLab and all its depencies (PostgreSQL, Redis, Nginx, Unicorn, etc.). They are made with omnibus-gitlab that also contains the installation instructions. These packages currently support a reduced selection of GitLab’s normal features. For instance, it is not yet possible to create/restore application backups or to use HTTPS.

GitLab virtual machine images contain an operating system and a preinstalled GitLab. They are made with GitLab Packer that also contains the installation instructions.

https://gitlab.com/gitlab-org/gitlab-ce/blob/master/README.md#installation

如果是Ubuntu的话，仅需要安装一个package就可以了：

https://www.gitlab.com/downloads/

如果需要改变GitLab的port，编辑：

/var/opt/gitlab/nginx/etc

中的listen即可。

初始密码在这里找到

After the steps below your GitLab instance should reachable over HTTP, and have an admin user with username root and password 5iveL!fe.