撰写环境说明
系统：Centos 7.9
Docker：20.10.17
yum方式部署
添加gitlab的yum源仓库
curl -s https://packages.gitlab.com/install/repositories/gitlab/gitlab-ce/script.rpm.sh | sudo bash或者使用清华源（推荐）
vim /etc/yum.repos.d/gitlab-ce.repo
## 添加下面的内容
[gitlab-ce]
name=Gitlab CE Repository
baseurl=https://mirrors.tuna.tsinghua.edu.cn/gitlab-ce/yum/el$releasever/
gpgcheck=0
enabled=1安装gitlab
yum -y install gitlab-ce安装完成后配置gitlab默认端口
vim /etc/gitlab/gitlab.rb修改端口和地址
##! Note: During installation/upgrades, the value of the environment variable
##! EXTERNAL_URL will be used to populate/replace this value.
##! On AWS EC2 instances, we also attempt to fetch the public hostname/IP
##! address from AWS. For more details, see:
##! https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
## external_url 'http://gitlab.example.com' ##将地址修改为主机IP+端口，也可以只改地址默认80端口
external_url 'http://192.168.0.66:8800'
##修改ssh端口
### GitLab Shell settings for GitLab
## 去掉注释后修改
gitlab_rails['gitlab_shell_ssh_port'] = 222
# gitlab_rails['gitlab_shell_git_timeout'] = 800初始化gitlab
gitlab-ctl reconfigure
#这一步需要时间较长初始化完成后服务就启动了，可以登陆http://IP+端口 访问gitlab，默认账户为root，初始密码存储在/etc/gitlab/initial_root_password
# WARNING: This value is valid only in the following conditions
# 1. If provided manually (either via `GITLAB_ROOT_PASSWORD` environment variable or via `gitlab_rails['initial_root_password']` setting in `gitlab.rb`, it was provided before database was seeded for the first time (usually, the first reconfigure run).
# 2. Password hasn't been changed manually, either via UI or via command line.
#
# If the password shown here doesn't work, you must reset the admin password following https://docs.gitlab.com/ee/security/reset_user_password.html#reset-your-root-password.
Password: Jen0LBE6l7U3KcMdf1VwwNTjLAUs1jtDsMHgl2raiNU=
# NOTE: This file will be automatically deleted in the first reconfigure run after 24 hours.如果忘记root密码可以使用命令重置
gitlab-rake "gitlab:password:reset[root]"
## 输入2次密码后修改完成
到这里yum方式部署的gitlab就已经基本完成
Docker方式部署
创建持久化目录
mkdir -p /data/gitlab/{conf,logs,data}拉取镜像（也可直接执行命令，先不拉取）
#不写版本即为最新镜像
docker pull gitlab/gitlab-ce启动容器
docker run -d -p 8443:443 -p 8800:80 -p 222:22 --name gitlab --restart always -v /data/gitlab/conf:/etc/gitlab -v /data/gitlab/logs:/var/log/gitlab -v /data/gitlab/data:/var/opt/gitlab gitlab/gitlab-ce启动完成后修改配置文件
vim /data/gitlab/conf/gitlab.rb
#修改IP
external_url 'http://192.168.0.66'
#修改ssh，这个并不是实际ssh端口，是ssh方式克隆代码时候的端口
gitlab_rails['gitlab_shell_ssh_port'] = 222重启gitlab容器后重新初始化
docker restart gitlab
#进入容器
docker exec -it gitlab /bin/bash
#执行初始化并重启
gitlab-ctl reconfigure
gitlab-ctl restart访问宿主机IP+8800，默认账户root，因为已经对容器目录做了持久化，所以密码在/data/gitlab/conf/initial_root_password中
cat /data/gitlab/conf/initial_root_password中
[root@server-backend config]# cat /docker/gitlib/config/initial_root_password
# WARNING: This value is valid only in the following conditions
# 1. If provided manually (either via `GITLAB_ROOT_PASSWORD` environment variable or via `gitlab_rails['initial_root_password']` setting in `gitlab.rb`, it was provided before database was seeded for the first time (usually, the first reconfigure run).
# 2. Password hasn't been changed manually, either via UI or via command line.
#
# If the password shown here doesn't work, you must reset the admin password following https://docs.gitlab.com/ee/security/reset_user_password.html#reset-your-root-password.
Password: /Cs22USJrdsdlfj235ll3n6nlDwcat60vqk-
# NOTE: This file will be automatically deleted in the first reconfigure run after 24 hours.到此Docker方式部署GitLab也已经基本完成，无论哪种方式部署，在用户注册完成后建议关闭注册功能