参考文档：https://about.gitlab.com/downloads/#centos6

1.安装Postfix和openssh软件

[root@node1 ~]# yum install curl openssh-server openssh-clients postfix cronie
[root@node1 ~]# service postfix start
[root@node1 ~]# chkconfig postfix on
[root@node1 ~]# lokkit -s http -s ssh

2.安装Gitlab服务和包

[root@node1 ~]# curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash
[root@node1 ~]# yum install gitlab-ce
[root@node1 ~]# curl -LJO https://packages.gitlab.com/gitlab/gitlab-ce/packages/el/6/gitlab-ce-XXX.rpm/download
[root@node1 ~]# rpm -i gitlab-ce-XXX.rpm

3.启动Gitlab服务
[root@node1 ~]# gitlab-ctl reconfigure

4.打开首页
http://IP/profile
Username: root
Password: 5iveL!fe