CentOS7安装Gitlab完整步骤
1.安装相关依赖
yum -y install policycoreutils openssh-server openssh-clients postfix
2.启动ssh服务&设置为开机启动
systemctl enable sshd && sudo systemctl start sshd
3.设置postfix开机自启，并启动，postfix支持gitlab发信功能
systemctl enable postfix && systemctl start postfix
4.进入opt文件夹
cd /opt
5.安装jdk
安装网址：
6.yum安装policycoreutils-python
yum install policycoreutils-python -y
7.安装gitlab
rpm -ivh gitlab-ce-12.4.2-ce.0.el6.x86_64.rpm
8.修改gitlab配置
vim /etc/gitlab/gitlab.rb
修改内容如下：
external_url http://主机地址:82 nginx[listen_port] = 82
9.重载配置及启动gitlab
gitlab-ctl reconfigure
gitlab-ctl restart
10.关闭防火墙
systemctl stop firewalld
