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Docker-Gitlab安装的详细指南
1、简述
GitLab 是一个功能强大的 Git 仓库管理工具，支持代码审查、持续集成/持续部署 (CI/CD) 等多种功能。使用 Docker 安装 GitLab 可以简化部署过程，确保环境一致性。本文将介绍如何在 Docker 中安装和配置 GitLab。
2、准备环境
gitlab要求至少4G的内存:
[root@localhost ~]# free -m
total used free shared buff/cache available
Mem: 5786 4201 147 29 1438 1265
Swap: 0 0 0
准备好Docker容器：
Docker：基本安装和配置
拾荒的小海螺，公众号：拾荒的小海螺
Docker：基本安装和配置
3、拉取gitlab容器
直接拉取最新的gitlab版本
docker pull gitlab/gitlab-ce
创建一个目录来存放 GitLab 的配置、日志和数据文件。例如：
mkdir -p /data/gitlab/config /data/gitlab/logs /data/gitlab/data
使用以下命令启动 GitLab 容器：
$ sudo docker run -d -p 8443:443 -p 8090:8090 -p 8022:22 --name gitlab --restart always
-v /data/gitlab/config:/etc/gitlab
-v /data/gitlab/logs:/var/log/gitlab
-v /data/gitlab/data:/var/opt/gitlab gitlab/gitlab-ce
-d：后台运行
-p：将容器内部端口向外映射
--name：命名容器名称
-v：将容器内数据文件夹或者日志、配置等文件夹挂载到宿主机指定目录
4、修改端口映射
在/data/gitlab/config路径中找到gitlab.rb
[root@localhost config]# ls
gitlab.rb initial_root_password ssh_host_ecdsa_key.pub ssh_host_ed25519_key.pub ssh_host_rsa_key.pub
gitlab-secrets.json ssh_host_ecdsa_key ssh_host_ed25519_key ssh_host_rsa_key trusted-certs
在gitlab.rb配置中添加：
# 配置http协议所使用的访问地址,不加端口号默认为80
external_url 'http://192.168.220.144:8090'
# 配置ssh协议所使用的访问地址和端口
gitlab_rails['gitlab_ssh_host'] = '192.168.220.144'
# 此端口是run时22端口映射的222端口
gitlab_rails['gitlab_shell_ssh_port'] = 8022
然后重启gitlab：
docker restart gitlab
然后在浏览器上访问：http://192.168.220.144:8090
出现这个页面不是失败，Gitlab启动比较慢，要多等一会儿。
5、修改密码
1、root 默认密码放在initial_root_password 文件底下，通过以下指令查看
docker exec -it gitlab grep 'Password:' /etc/gitlab/initial_root_password
find / -name initial_root_password
cat /data/gitlab/config/initial_root_password
2、修改默认的密码
首先进入gitlab控制台：
docker exec -it gitlab /bin/bash
接着进入指定的gitlab-rails控制台：
gitlab-rails console -e production
这一步可能等待比较久，多等一下等进入输入控制台
按步骤一步一步执行：
user =User.find(1) //第一步
user.password ='123456?' //第二步
user.password_confirmation ='123456?' //第三步
user.send_only_admin_changed_your_password_notification! //第四步
user.save! //第五步
[root@localhost config]# docker exec -it gitlab /bin/bash
root@8e97133ab2de:/# gitlab-rails console -e production
--------------------------------------------------------------------------------
Ruby: ruby 2.7.5p203 (2021-11-24 revision f69aeb8314) [x86_64-linux]
GitLab: 14.6.1 (661d663ab2b) FOSS
GitLab Shell: 13.22.1
PostgreSQL: 12.7
--------------------------------------------------------------------------------
Loading production environment (Rails 6.1.4.1)
irb(main):001:0> user =User.find(1)
=> #<User id:1 @root>
irb(main):002:0> user.password ='123456?'
=> "123456?"
irb(main):003:0> user.password_confirmation ='123456?'
=> "123456?"
irb(main):004:0> user.send_only_admin_changed_your_password_notification!
=> true
irb(main):005:0> user.save!
=> true
然后通过exit退出，再重启gitlab。
6、备份和恢复
GitLab 提供了简单的备份机制。可以通过以下命令创建备份：
docker exec -t gitlab gitlab-backup create
要恢复 GitLab 实例，请将备份文件复制到 /data/gitlab/data/backups 目录，然后运行以下命令：
docker exec -t gitlab gitlab-backup restore BACKUP=your_backup_filename
请将 your_backup_filename 替换为实际的备份文件名。
7、优化启动速度
因 docker 版本的gitlab 启动会自动启动 prometheus|grafana|alertmanager 和一系列 exporter， 非常占用资源，且导致启动比较慢，因此我们可以通过修改 /etc/gitlab/gitlab.rb 来关闭该功能。
默认启动包含如下内容：
# ps -ef|grep -E 'prome|exporter|alert|graf'
git 280 272 0 10:09 ? 00:00:00 /opt/gitlab/embedded/bin/gitlab-workhorse -listenNetwork unix -listenUmask 0 -listenAddr /var/opt/gitlab/gitlab-workhorse/sockets/socket -authBackend http://localhost:8080 -authSocket /var/opt/gitlab/gitlab-rails/sockets/gitlab.socket -documentRoot /opt/gitlab/embedded/service/gitlab-rails/public -pprofListenAddr -prometheusListenAddr localhost:9229 -secretPath /opt/gitlab/embedded/service/gitlab-rails/.gitlab_workhorse_secret -logFormat json -config config.toml
root 350 23 0 10:09 ? 00:00:00 runsv redis-exporter
root 351 23 0 10:09 ? 00:00:00 runsv gitlab-exporter
root 352 23 0 10:09 ? 00:00:00 runsv grafana
root 353 23 0 10:09 ? 00:00:00 runsv postgres-exporter
root 355 23 0 10:09 ? 00:00:00 runsv alertmanager
root 356 23 0 10:09 ? 00:00:00 runsv prometheus
root 357 351 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/gitlab-exporter
root 358 350 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/redis-exporter
root 359 352 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/grafana
gitlab-+ 360 352 0 10:09 ? 00:00:00 /opt/gitlab/embedded/bin/grafana-server -config /var/opt/gitlab/grafana/grafana.ini
gitlab-+ 361 350 0 10:09 ? 00:00:00 /opt/gitlab/embedded/bin/redis_exporter --web.listen-address=localhost:9121 --redis.addr=unix:///var/opt/gitlab/redis/redis.socket
root 362 353 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/postgres-exporter
git 363 351 0 10:09 ? 00:00:07 /opt/gitlab/embedded/bin/ruby /opt/gitlab/embedded/bin/gitlab-exporter web -c /var/opt/gitlab/gitlab-exporter/gitlab-exporter.yml
gitlab-+ 365 353 0 10:09 ? 00:00:01 /opt/gitlab/embedded/bin/postgres_exporter --web.listen-address=localhost:9187 --extend.query-path=/var/opt/gitlab/postgres-exporter/queries.yaml
root 366 355 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/alertmanager
root 368 356 0 10:09 ? 00:00:00 svlogd -tt /var/log/gitlab/prometheus
gitlab-+ 369 356 1 10:09 ? 00:00:12 /opt/gitlab/embedded/bin/prometheus --web.listen-address=localhost:9090 --storage.tsdb.path=/var/opt/gitlab/prometheus/data --config.file=/var/opt/gitlab/prometheus/prometheus.yml
gitlab-+ 370 355 0 10:09 ? 00:00:00 /opt/gitlab/embedded/bin/alertmanager --web.listen-address=localhost:9093 --storage.path=/var/opt/gitlab/alertmanager/data --config.file=/var/opt/gitlab/alertmanager/alertmanager.yml
root 618 615 0 10:11 ? 00:00:00 tail --follow=name --retry /var/log/gitlab/redis-exporter/current /var/log/gitlab/redis-exporter/state /var/log/gitlab/postgresql/current /var/log/gitlab/postgresql/state /var/log/gitlab/sidekiq/current /var/log/gitlab/sidekiq/state /var/log/gitlab/gitlab-exporter/current /var/log/gitlab/gitlab-exporter/state /var/log/gitlab/gitlab-rails/gitlab-rails-db-migrate-2022-02-10-01-12-10.log /var/log/gitlab/gitlab-rails/exceptions_json.log /var/log/gitlab/gitlab-rails/application.log /var/log/gitlab/gitlab-rails/web_exporter.log /var/log/gitlab/gitlab-rails/application_json.log /var/log/gitlab/gitlab-rails/sidekiq_client.log /var/log/gitlab/gitlab-rails/audit_json.log /var/log/gitlab/gitlab-rails/api_json.log /var/log/gitlab/gitlab-rails/auth.log /var/log/gitlab/gitlab-rails/production.log /var/log/gitlab/gitlab-rails/service_measurement.log /var/log/gitlab/gitlab-rails/graphql_json.log /var/log/gitlab/gitlab-rails/production_json.log /var/log/gitlab/gitlab-rails/git_json.log /var/log/gitlab/gitlab-rails/grpc.log /var/log/gitlab/logrotate/current /var/log/gitlab/grafana/current /var/log/gitlab/grafana/state /var/log/gitlab/postgres-exporter/current /var/log/gitlab/postgres-exporter/state /var/log/gitlab/nginx/gitlab_access.log /var/log/gitlab/nginx/gitlab_error.log /var/log/gitlab/nginx/current /var/log/gitlab/nginx/access.log /var/log/gitlab/nginx/error.log /var/log/gitlab/redis/current /var/log/gitlab/redis/state /var/log/gitlab/alertmanager/current /var/log/gitlab/alertmanager/state /var/log/gitlab/gitlab-workhorse/current /var/log/gitlab/gitlab-workhorse/state /var/log/gitlab/prometheus/current /var/log/gitlab/prometheus/state /var/log/gitlab/sshd/current /var/log/gitlab/gitaly/current /var/log/gitlab/gitaly/gitaly_ruby_json.log /var/log/gitlab/gitaly/state /var/log/gitlab/puma/puma_stderr.log /var/log/gitlab/puma/current /var/log/gitlab/puma/puma_stdout.log /var/log/gitlab/puma/state
root 2385 1071 0 10:26 pts/0 00:00:00 grep --color=auto -E prome|exporter|alert|graf
通过修改gitlab.rb配置文件：
alertmanager['enable'] = false
node_exporter['enable'] = false
redis_exporter['enable'] = false
postgres_exporter['enable'] = false
gitlab_exporter['enable'] = false
prometheus_monitoring['enable'] = false
grafana['enable'] = false
然后重启启动gitlab，再查看
[root@localhost config]# ps -ef|grep -E 'prome|exporter|alert|graf'
chrony 96781 96777 0 07:46 ? 00:00:03 /opt/gitlab/embedded/bin/gitlab-workhorse -listenNetwork unix -listenUmask 0 -listenAddr /var/opt/gitlab/gitlab-workhorse/sockets/socket -authBackend http://localhost:8080 -authSocket /var/opt/gitlab/gitlab-rails/sockets/gitlab.socket -documentRoot /opt/gitlab/embedded/service/gitlab-rails/public -pprofListenAddr -prometheusListenAddr localhost:9229 -secretPath /opt/gitlab/embedded/service/gitlab-rails/.gitlab_workhorse_secret -logFormat json -config config.toml
root 97762 97761 0 07:55 ? 00:00:00 tail --follow=name --retry /var/log/gitlab/sshd/current /var/log/gitlab/gitlab-rails/gitlab-rails-db-migrate-2022-10-28-09-37-05.log /var/log/gitlab/gitlab-rails/production.log /var/log/gitlab/gitlab-rails/application.log /var/log/gitlab/gitlab-rails/application_json.log /var/log/gitlab/gitlab-rails/grpc.log /var/log/gitlab/gitlab-rails/service_measurement.log /var/log/gitlab/gitlab-rails/auth.log /var/log/gitlab/gitlab-rails/sidekiq_client.log /var/log/gitlab/gitlab-rails/production_json.log /var/log/gitlab/gitlab-rails/api_json.log /var/log/gitlab/gitlab-rails/gitlab-rails-db-migrate-2022-10-28-09-47-20.log /var/log/gitlab/gitlab-rails/exceptions_json.log /var/log/gitlab/logrotate/current /var/log/gitlab/redis/current /var/log/gitlab/gitaly/gitaly_ruby_json.log /var/log/gitlab/gitaly/current /var/log/gitlab/postgresql/current /var/log/gitlab/puma/puma_stdout.log /var/log/gitlab/puma/puma_stderr.log /var/log/gitlab/puma/current /var/log/gitlab/sidekiq/current /var/log/gitlab/gitlab-workhorse/current /var/log/gitlab/nginx/current /var/log/gitlab/nginx/error.log /var/log/gitlab/nginx/gitlab_access.log /var/log/gitlab/nginx/gitlab_error.log /var/log/gitlab/nginx/access.log /var/log/gitlab/gitlab-exporter/current /var/log/gitlab/redis-exporter/current /var/log/gitlab/prometheus/current /var/log/gitlab/alertmanager/current /var/log/gitlab/postgres-exporter/current /var/log/gitlab/grafana/current
root 98228 92777 0 07:58 pts/1 00:00:00 grep --color=auto -E prome|exporter|alert|graf
重新访问：http://192.168.220.144:8090，出现以下界面代表你安装成功：
8、配置ssh keys
在本地打开git bash 客户端输入ssh-keygen 生成公钥和私钥
ssh-keygen -t rsa -C 'xxx@xxx.com'
lsk1@LAPTOP-0SIF32SL MINGW64 /e/Project/Java_Project/eureka
$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/c/Users/wlsk1/.ssh/id_rsa): //首次回车
Enter passphrase (empty for no passphrase): //可以输入密码
Enter same passphrase again: //再次确认密码
Your identification has been saved in /c/Users/wlsk1/.ssh/id_rsa.
Your public key has been saved in /c/Users/wlsk1/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:sGfrvxU09TPXBfyVhMEyN4k/j/a7WSaaPywPSp3gClk wlsk1@LAPTOP-0SIF32SL
The key's randomart image is:
+---[RSA 3072]----+
| ooBoo|
| + B.o+|
| . B .+=|
| o . + =|
| . E . . + |
| = o o = . |
| o . o *.o o|
| o o o.+o+o|
| o.+.o+o=o|
在本地目录c/Users/wlsk1/.ssh/id_rsa.pub.下查找id_rsa.pub打开并复制到
接着自己通过Git客户端直接拉取代码就行。
9、总结
通过 Docker 安装 GitLab 不仅简化了部署过程，还提供了灵活性和可移植性。希望本文能帮助你顺利完成 GitLab 的安装和配置。如果有任何问题，欢迎留言讨论！
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