1、安装和配置必须的依赖
1 sudo yum install curl policycoreutils openssh-server openssh-clients 2 sudo systemctl enable sshd 3 sudo systemctl start sshd 4 sudo yum install postfix 5 sudo systemctl enable postfix 6 sudo systemctl start postfix 7 sudo firewall-cmd --permanent --add-service=http 8 sudo systemctl reload firewalld
2、添加GitLab包服务，然后安装它
1 curl -sS https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash 2 sudo yum install gitlab-ce
3、配置和启动GitLab
1 sudo gitlab-ctl reconfigure
启动完成后，在浏览器访问你机器的IP地址，然后，修改密码，注册用户，最后登录进去。
搭建的GitLab服务就基本完成了.
参考：https://about.gitlab.com/downloads/#cent
原文：https://www.cnblogs.com/lijiejoy/p/9059696.html