GitHub是公开的仓库，一些企业和公司的代码不方便放到上面，就可以选择搭建一个自己的私有仓库，可以搭建Gitlib来实现。
[root@antong ~]# yum install -y git
[root@antong ~]# git config --global user.name "antong"
[root@antong ~]# git config --global user.email "1172734664@qq.com"
//添加git用户，并且设置shell为/usr/bin/git-shell,目的是为了不让git用户远程登陆
[root@antong ~]# useradd -s /usr/bin/git-shell git
[root@antong ~]# cd /home/git/
//创建authorized_keys文件，并更改属主、属组和权限，用来存客户端机器上的公钥
[root@antong git]# mkdir .ssh
[root@antong git]# touch .ssh/authorized_keys
[root@antong git]# chown -R git.git .ssh
[root@antong git]# chown 600 .ssh/authorized_keys
[root@antong git]# ll .ssh/authorized_keys
-rw-r--r--. 1 600 git 0 Sep 2 21:40 .ssh/authorized_keys
//定好存储Git仓库的目录，比如 /data/gitpub
[root@antong git]# mkdir /data/gitpub
[root@antong git]# cd /data/gitpub/
[root@antong gitpub]# git init --bare sample.git
Initialized empty Git repository in /data/gitpub/sample.git/
[root@antong gitpub]# chown -R git.git sample.git/
[root@antong gitpub]# ll
total 0
drwxr-xr-x. 7 git git 119 Sep 2 21:42 sample.git
以上操作是在Git服务器上操作，平时Git服务器是不需要开发人员登录修改代码的，它仅仅是充当着一个服务器的角色，就像GitHub一样，平时操作都是在我们自己的机器上操做的。
//首先要把客户端上的公钥放到git服务器/home/git/.ssh/authorized_keys文件里
[root@client ~]# ssh-keygen //按3次回车
[root@client ~]# scp /root/.ssh/id_rsa.pub 192.168.200.10:/home/git/.ssh/authorized_keys
//在客户端上克隆远程仓库
[root@client ~]# git clone git@192.168.200.10:/data/gitpub/sample.git
Cloning into ‘sample‘...
warning: You appear to have cloned an empty repository.
[root@client ~]# ls
anaconda-ks.cfg sample
//此时就可以在当前目录下生成一个sample的目录，这个就是我们克隆的远程仓库了。进入到这里面，可以开发一些代码，然后push到远程，比如git push origin master。
GitLab官网：https://about.gitlab.com/gitlab-com/
官方安装文档：https://about.gitlab.com/installation/?version=ce#centos-7 (ce/ee)
要求服务器内存不少于2 GB。
[root@client ~]# vim /etc/yum.repos.d/gitlab.repo //加入如下内容
[gitlab-ce]
name=Gitlab CE Repository
baseurl=https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el$releasever/
gpgcheck=0
enabled=1
[root@client ~]# yum clean all //清理yum源
[root@client ~]# yum repolist //查看是否配置成功
[root@antong ~]# yum install -y gitlab-ce.x86_64
[root@antong ~]# gitlab-ctl reconfigure //重新加载
[root@antong ~]# netstat -lnpt //查看监听端口
[root@antong ~]# netstat -lnpt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:8060 0.0.0.0:* LISTEN 3528/nginx: master
tcp 0 0 127.0.0.1:9121 0.0.0.0:* LISTEN 4247/redis_exporter
tcp 0 0 127.0.0.1:9090 0.0.0.0:* LISTEN 4253/prometheus
tcp 0 0 127.0.0.1:9187 0.0.0.0:* LISTEN 4355/postgres_expor
tcp 0 0 127.0.0.1:9093 0.0.0.0:* LISTEN 4344/alertmanager
tcp 0 0 127.0.0.1:9100 0.0.0.0:* LISTEN 4226/node_exporter
tcp 0 0 127.0.0.1:9229 0.0.0.0:* LISTEN 4213/gitlab-workhor
tcp 0 0 127.0.0.1:9168 0.0.0.0:* LISTEN 4241/ruby
tcp 0 0 127.0.0.1:8080 0.0.0.0:* LISTEN 3409/puma 5.3.2 (un
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 3528/nginx: master
tcp 0 0 127.0.0.1:8082 0.0.0.0:* LISTEN 3441/sidekiq 5.2.9
tcp 0 0 127.0.0.1:9236 0.0.0.0:* LISTEN 4206/gitaly
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 908/sshd
tcp 0 0 127.0.0.1:3000 0.0.0.0:* LISTEN 4361/grafana-server
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 1203/master
tcp6 0 0 :::9094 :::* LISTEN 4344/alertmanager
tcp6 0 0 :::3306 :::* LISTEN 1137/mysqld
tcp6 0 0 ::1:9168 :::* LISTEN 4241/ruby
tcp6 0 0 :::22 :::* LISTEN 908/sshd
tcp6 0 0 ::1:25 :::* LISTEN 1203/master
[root@antong ~]# gitlab-ctl start //启动gitlab
ok: run: alertmanager: (pid 4344) 274s
ok: run: gitaly: (pid 4235) 277s
ok: run: gitlab-exporter: (pid 4241) 277s
ok: run: gitlab-workhorse: (pid 4213) 278s
ok: run: grafana: (pid 4361) 273s
ok: run: logrotate: (pid 2962) 530s
ok: run: nginx: (pid 3528) 427s
ok: run: node-exporter: (pid 4226) 278s
ok: run: postgres-exporter: (pid 4355) 274s
ok: run: postgresql: (pid 3214) 512s
ok: run: prometheus: (pid 4253) 276s
ok: run: puma: (pid 3409) 451s
ok: run: redis: (pid 3003) 524s
ok: run: redis-exporter: (pid 4247) 277s
ok: run: sidekiq: (pid 3436) 445s
使用浏览器访问Gitlab，输入IP地址即可
默认管理员root，无密码，它会让我们去定义一个密码，至少8位数
GitLab常用命令 https://www.cnyunwei.cc/archives/1204
//GitLab备份
[root@antong ~]# gitlab-rake gitlab:backup:create //创建备份压缩包
2021-09-02 23:16:13 -0400 -- Dumping database ...
Dumping PostgreSQL database gitlabhq_production ... [DONE]
2021-09-02 23:16:17 -0400 -- done
2021-09-02 23:16:17 -0400 -- Dumping repositories ...
... //简写省略
//备份目录在/var/opt/gitlab/backups
[root@antong ~]# ls /var/opt/gitlab/backups/
1630638978_2021_09_02_14.2.3_gitlab_backup.tar
//GitLab恢复，需要先停服务
[root@antong ~]# gitlab-ctl stop unicorn ; gitlab-ctl stop sidekiq
ok: down: sidekiq: 7s, normally up
[root@antong ~]# gitlab-rake gitlab:backup:restore BACKUP=xxxxx //（这里是一个编号，即备份文件的前缀） //恢复备份
...
2020-08-05 12:13:33 -0400 -- done
2020-08-05 12:13:33 -0400 -- Restoring repositories ...
2020-08-05 12:13:33 -0400 -- done
2020-08-05 12:13:33 -0400 -- Restoring uploads ...
2020-08-05 12:13:33 -0400 -- done
...
//再启动服务
# gitlab-ctl start
ok: run: alertmanager: (pid 3330) 12714s
ok: run: gitaly: (pid 3341) 12713s
ok: run: gitlab-exporter: (pid 3357) 12713s
ok: run: gitlab-workhorse: (pid 3359) 12713s
ok: run: grafana: (pid 4273) 12521s
ok: run: logrotate: (pid 13262) 1911s
原文：https://www.cnblogs.com/antong/p/15222337.html