Gitlab备份和恢复操作记录
GItlab只能还原到与备份文件相同的gitlab版本。假设在上面gitlab备份之前创建了test项目，然后不小心误删了test项目，现在就进行gitlab恢复操作：
1）停止相关数据连接服务
# gitlab-ctl stop unicorn
ok: down: unicorn: 0s, normally up
# gitlab-ctl stop sidekiq
ok: down: sidekiq: 1s, normally up
# gitlab-ctl status
run: gitaly: (pid 98087) 1883s; run: log: (pid 194202) 163003s
run: gitlab-monitor: (pid 98101) 1883s; run: log: (pid 194363) 163002s
run: gitlab-workhorse: (pid 98104) 1882s; run: log: (pid 194362) 163002s
run: logrotate: (pid 98117) 1882s; run: log: (pid 5793) 160832s
run: nginx: (pid 98123) 1881s; run: log: (pid 194359) 163002s
run: node-exporter: (pid 98167) 1881s; run: log: (pid 194360) 163002s
run: postgres-exporter: (pid 98173) 1881s; run: log: (pid 194204) 163003s
run: postgresql: (pid 98179) 1880s; run: log: (pid 194365) 163002s
run: prometheus: (pid 98187) 1880s; run: log: (pid 194364) 163002s
run: redis: (pid 98230) 1879s; run: log: (pid 194358) 163002s
run: redis-exporter: (pid 98234) 1879s; run: log: (pid 194208) 163003s
down: sidekiq: 8s, normally up; run: log: (pid 194437) 163001s
down: unicorn: 21s, normally up; run: log: (pid 194443) 163001s
2）现在通过之前的备份文件进行恢复
# pwd
/data/gitlab/backups
# ll
total 244
-rw-r--r-- 1 git git 245760 Nov 12 15:33 1510472027_2017_11_12_9.4.5_gitlab_backup.tar
Gitlab的恢复操作会先将当前所有的数据清空，然后再根据备份数据进行恢复
# gitlab-rake gitlab:backup:restore BACKUP=1510472027_2017_11_12_9.4.5
Unpacking backup ... done
Before restoring the database we recommend removing all existing
tables to avoid future upgrade problems. Be aware that if you have
custom tables in the GitLab database these tables and all data will be
removed.
Do you want to continue (yes/no)?
........
ALTER TABLE
ALTER TABLE
ALTER TABLE
ALTER TABLE
WARNING:no privileges were granted for "public"
GRANT
done
Restoring repositories ...
* treesign/treesign ...
* gateway/gateway ...
* treesign/treesign-doc ...
* qwsign/qwsign ...
* qwsign/qwsign-doc ...
* test/test ...
Put GitLab hooks in repositories dirs
done
Restoring uploads ...
done
Restoring builds ...
done
Restoring artifacts ...
done
Restoring pages ...
done
Restoring lfs objects ...
done
This will rebuild an authorized_keys file.
You will lose any data stored in authorized_keys file.
Do you want to continue (yes/no)? yes
Deleting tmp directories ... done
done
done
done
done
done
done
done
#
最后再次启动Gitlab
# gitlab-ctl start
ok: run: gitaly: (pid 98087) 2138s
ok: run: gitlab-monitor: (pid 98101) 2138s
ok: run: gitlab-workhorse: (pid 98104) 2137s
ok: run: logrotate: (pid 98117) 2137s
ok: run: nginx: (pid 98123) 2136s
ok: run: node-exporter: (pid 98167) 2136s
ok: run: postgres-exporter: (pid 98173) 2136s
ok: run: postgresql: (pid 98179) 2135s
ok: run: prometheus: (pid 98187) 2135s
ok: run: redis: (pid 98230) 2134s
ok: run: redis-exporter: (pid 98234) 2134s
ok: run: sidekiq: (pid 104494) 0s
ok: run: unicorn: (pid 104497) 1s
# gitlab-ctl status
run: gitaly: (pid 98087) 2142s; run: log: (pid 194202) 163262s
run: gitlab-monitor: (pid 98101) 2142s; run: log: (pid 194363) 163261s
run: gitlab-workhorse: (pid 98104) 2141s; run: log: (pid 194362) 163261s
run: logrotate: (pid 98117) 2141s; run: log: (pid 5793) 161091s
run: nginx: (pid 98123) 2140s; run: log: (pid 194359) 163261s
run: node-exporter: (pid 98167) 2140s; run: log: (pid 194360) 163261s
run: postgres-exporter: (pid 98173) 2140s; run: log: (pid 194204) 163262s
run: postgresql: (pid 98179) 2139s; run: log: (pid 194365) 163261s
run: prometheus: (pid 98187) 2139s; run: log: (pid 194364) 163261s
run: redis: (pid 98230) 2138s; run: log: (pid 194358) 163261s
run: redis-exporter: (pid 98234) 2138s; run: log: (pid 194208) 163262s
run: sidekiq: (pid 104494) 4s; run: log: (pid 194437) 163260s
run: unicorn: (pid 104497) 4s; run: log: (pid 194443) 163260s
恢复命令完成后，可以check检查一下恢复情况
# gitlab-rake gitlab:check SANITIZE=true
Checking GitLab Shell ...
GitLab Shell version >= 5.3.1 ? ... OK (5.3.1)
Repo base directory exists?
default... yes
Repo storage directories are symlinks?
default... no
Repo paths owned by git:root, or git:git?
default... yes
Repo paths access is drwxrws---?
default... yes
hooks directories in repos are links: ...
5/1 ... ok
6/2 ... ok
5/3 ... repository is empty
12/4 ... ok
12/5 ... ok
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Access to /var/opt/gitlab/.ssh/authorized_keys: OK
Send ping to redis server: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Sidekiq ...
Running? ... yes
Number of Sidekiq processes ... 1
Checking Sidekiq ... Finished
Checking Reply by email ...
Reply by email is disabled in config/gitlab.yml
Checking Reply by email ... Finished
Checking LDAP ...
LDAP is disabled in config/gitlab.yml
Checking LDAP ... Finished
Checking GitLab ...
Git configured correctly? ... yes
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Init script exists? ... skipped (omnibus-gitlab has no init script)
Init script up-to-date? ... skipped (omnibus-gitlab has no init script)
Projects have namespace: ...
5/1 ... yes
6/2 ... yes
5/3 ... yes
12/4 ... yes
12/5 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.3 ? ... yes (2.3.3)
Git version >= 2.7.3 ? ... yes (2.13.4)
Active users: ... 11
Checking GitLab ... Finished
然后稍等一会（如果启动gitlab后，访问出现500，这是因为redis等程序还没完全启动，等一会儿访问就ok了），再次登录Gitlab，就会发现之前误删除的test项目已经恢复了！
另外：Gitlab迁移与恢复一样，但是要求两个GitLab版本号一致
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