安装依赖包

sudo yum install -y curl policycoreutils-python openssh-server

设置SSH开机自启动并启动SSH服务

sudo systemctl enable sshd
sudo systemctl start sshd

安装Postfix来发送通知邮件

sudo systemctl enable postfix

启动Postfix服务

运行命令vim /etc/postfix/main.cf打开main.cf文件，找到inet_interfaces = localhost 并修改成 如下：

inet_interfaces = all

添加GitLab软件包仓库

 curl https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash

安装GitLab

sudo yum install -y gitlab-ce

启用ssl自签证书

生成ssl证书

cd /etc/gitlab/ssl/
openssl genrsa -out /etc/gitlab/ssl/gitlab.example.com.key 2048
openssl req  -new -key '/etc/gitlab/ssl/gitlab.example.com.key' -out '/etc/gitlab/ssl/gitlab.example.com.csr'
openssl  x509 -req -days 7305 -in '/etc/gitlab/ssl/gitlab.example.com.csr' -signkey '/etc/gitlab/ssl/gitlab.example.com.key' -out '/etc/gitlab/ssl/gitlab.example.com.crt'
openssl dhparam -out /etc/gitlab/ssl/dhparams.pem 2048
chmod 600 *

修改配置文件/etc/gitlab/gitlab.rb

external_url 'https://gitlab.example.com:30000' # 修改成自己的域名和端口
nginx['ssl_certificate'] = "/etc/gitlab/ssl/gitlab.example.com.crt" # 使用生成的crt
nginx['ssl_certificate_key'] = "/etc/gitlab/ssl/gitlab.example.com.key" # 使用生成的key
# nginx['ssl_dhparam'] = /etc/gitlab/ssl/dhparams.pem # Path to dhparams.pem, eg. /etc/gitlab/ssl/dhparams.pem #使用生成的pem文件
##一下部分用于配置邮件服务
gitlab_rails['smtp_enable'] = true
gitlab_rails['smtp_address'] = "smtp.qq.com"
gitlab_rails['smtp_port'] = 25
gitlab_rails['smtp_user_name'] = "132xxxx950@.com"  ##自己的qq邮箱账号
gitlab_rails['smtp_password'] = "xxxx"  ##开通smtp时返回的授权码
gitlab_rails['smtp_domain'] = "qq.com"
gitlab_rails['smtp_authentication'] = "login"   
gitlab_rails['smtp_enable_starttls_auto'] = true
gitlab_rails['smtp_tls'] = false
gitlab_rails['gitlab_email_from'] = "132xxxx950@qq.com"  ##指定发送邮件的邮箱地址
user["git_user_email"] = "132xxxx950@qq.com"   ##指定接收邮件的邮箱地址

初始化服务

gitlab-ctl reconfigure

启动服务

gitlab-ctl start

浏览器输入地址，第一次登陆时会有一个更改密码的操作，直接设定一个新密码即可

参考链接:https://blog.csdn.net/xiaochenwj1995/article/details/106556200/