一、   备份之前

两台服务器gitlab版本必须一致，本例均为12.10.11

二、   Gitlab创建备份

#创建备份文件

[root@localhost backups]# gitlab-rake gitlab:backup:create

2021-05-21 12:02:04 -0400 -- Dumping database ...

Dumping PostgreSQL database gitlabhq_production ... [DONE]

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping repositories ...

 * root/demo (@hashed/6b/86/6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b) ... [DONE]

[SKIPPED] Wiki

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping uploads ...

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping builds ...

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping artifacts ...

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping pages ...

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping lfs objects ...

2021-05-21 12:02:06 -0400 -- done

2021-05-21 12:02:06 -0400 -- Dumping container registry images ...

2021-05-21 12:02:06 -0400 -- [DISABLED]

Creating backup archive: 1621612926_2021_05_21_12.10.11_gitlab_backup.tar ... done

Uploading backup archive to remote storage  ... skipped

Deleting tmp directories ... done

done

done

done

done

done

done

done

Deleting old backups ... skipping  

Warning: Your gitlab.rb and gitlab-secrets.json files contain sensitive data and are not included in this backup. You will need these files to restore a backup.  Please back them up manually.Backup task is done.

红字部分表示 gitlab.rb 和 gitlab-secrets.json 两个文件包含敏感信息。未被备份到备份文件中。需要手动备份。

使用以上命令会在/var/opt/gitlab/backups目录下创建一个名称类似为1621612926_2021_05_21_12.10.11_gitlab_backup.tar的压缩包, 这个压缩包就是Gitlab整个的完整部分。

[root@localhost backups]# ls -l

-rw------- 1 git git 2969600 May 21 10:40 1621608054_2021_05_21_12.10.11_gitlab_backup.tar

-rw------- 1 git git 2969600 May 21 12:02 1621612926_2021_05_21_12.10.11_gitlab_backup.tar

需手动备份的文件：

Ø  /etc/gitlab/gitlab.rb 配置文件须备份

Ø  /var/opt/gitlab/nginx/conf nginx配置文件

Ø  /etc/postfix/main.cfpostfix 邮件配置备份

Ø   /etc/gitlab/gitlab-secrets.json 存储了gitlab的db secret信息

  如果想修改备份路径，可在/etc/gitlab/gitlab.rb文件下编辑：

gitlab_rails['backup_path'] = "/var/opt/gitlab/backups"

三、   定时备份

计划每天凌晨五点进行备份

[root@localhost ~]# crontab -l

0 5 * * * /opt/gitlab/bin/gitlab-rake gitlab:backup:create CRON=1

四、    备份迁移

  本例是通过scp命令将源备份数据复制至新服务器之下，由于有端口限制，故对端口进行了处理：

源端服务器

[root@localhost backups]# scp -P 12018 /var/opt/gitlab/backups/1621846817_2021_05_24_12.10.11_gitlab_backup.tar root@10.78.56.115:/var/opt/gitlab/backups/

root@10.78.56.115's password:

1621612926_2021_05_21_12.10.11_gitlab_backup.tar                                           100% 2900KB   3.5MB/s   00:00

注意：

l  新服务器的gitlab版本和老服务器的gitlab版本一致

l  scp -P 端口，这个P是大写

五、    备份文件恢复

1.  修改文件权限

[root@cqgitlab backups]# chmod 777 1621846817_2021_05_24_12.10.11_gitlab_backup.tar

2.  关闭相关服务

关闭数据库连接服务

[root@cqgitlab backups]# gitlab-ctl stop unicorn

ok: down: unicorn: 0s, normally up

[root@cqgitlab backups]# gitlab-ctl stop sidekiq

ok: down: sidekiq: 0s, normally up

[root@cqgitlab backups]# gitlab-ctl stop nginx

ok: down: nginx: 1s, normally up

 这里注意不要关闭gitlab所有服务（gitlab-ctl stop）,否则会报错：

3.  执行恢复

  gitlab-rake gitlab:backup:restore BACKUP=备份文件编号

[root@cqgitlab backups]# gitlab-rake gitlab:backup:restore BACKUP=1621846817_2021_05_24_12.10.11

  注意：

l  此处命令是文件编号，不是文件名称

l  交互界面会有两次让输入“yes”

4.  开启服务

以下几个文件需手动恢复：

Ø  /etc/gitlab/gitlab.rb 配置文件

Ø  /var/opt/gitlab/nginx/conf nginx配置文件

Ø  /etc/postfix/main.cfpostfix 邮件配置备份

Ø   /etc/gitlab/gitlab-secrets.json 存储了gitlab的db secret信息

[root@cqgitlab gitlab]# mv /tmp/gitlab* .  #将备份在tmp目录下的文件手动进行恢复

[root@cqgitlab backups]# gitlab-ctl start

ok: run: alertmanager: (pid 12840) 1696s

ok: run: gitaly: (pid 12857) 1696s

ok: run: gitlab-exporter: (pid 12888) 1695s

ok: run: gitlab-workhorse: (pid 12893) 1695s

ok: run: grafana: (pid 12904) 1694s

ok: run: logrotate: (pid 12924) 1694s

ok: run: nginx: (pid 12947) 1693s

ok: run: node-exporter: (pid 12965) 1693s

ok: run: postgres-exporter: (pid 12971) 1693s

ok: run: postgresql: (pid 12984) 1692s

ok: run: prometheus: (pid 12993) 1692s

ok: run: redis: (pid 13014) 1691s

ok: run: redis-exporter: (pid 13025) 1691s

ok: run: sidekiq: (pid 25051) 0s

ok: run: unicorn: (pid 25057) 1s

检查状态

都无问题，两边的Gitlab同步完成，数据一致