gitlab 11.3.0 遷移至 docker 版本gitlab 11.8.1

本次環境以下

新的gitlab 環境
操做系統:
Centos 7.6 x86_64
4.4.176-1.el7.elrepo.x86_64

# rpm -qa|grep kernel
kernel-lt-4.4.176-1.el7.elrepo.x86_64
kernel-lt-devel-4.4.176-1.el7.elrepo.x86_64
kernel-lt-tools-libs-4.4.176-1.el7.elrepo.x86_64
kernel-lt-headers-4.4.176-1.el7.elrepo.x86_64
kernel-lt-tools-4.4.176-1.el7.elrepo.x86_64
kernel-lt-doc-4.4.176-1.el7.elrepo.noarch
kernel-lt-tools-libs-devel-4.4.176-1.el7.elrepo.x86_64

Docker:
Server: Docker Engine - Community
 Engine:
  Version:          18.09.3
  API version:      1.39 (minimum version 1.12)
  Go version:       go1.10.8
  Git commit:       774a1f4
  Built:            Thu Feb 28 06:02:24 2019
  OS/Arch:          linux/amd64
  Experimental:     false

原始gitlab版本
# cat /opt/gitlab/embedded/service/gitlab-rails/VERSION
11.3.0
部署在傳統物理機

升級遷移流程

舊gitlab備份  > 恢復至新環境的同版本gitlab > 驗證 > 升級新環境的gitlab > 驗證

找到相應gitlabt的docker版本

https://hub.docker.com
查找gitlab/gitlab-ce的官方製做版本11.3.0
docker pull gitlab/gitlab-ce:11.3.0-ce.0

建立相關目錄和docker數據卷

# mkdir -p /data/gitlab-backup
# mkdir -p /data/docker

# docker network create net_A
# docker volume create gitlab_config
# docker volume create gitlab_logs
# docker volume create gitlab_data
數據卷 容器位置 做用
gitlab_data /var/opt/gitlab gitlab的數據存放,包括nginx,postgresql這些
gitlab_logs /var/log/gitlab 日誌存放
gitlab_config /etc/gitlab gitlab的主配置文件
/data/gitlab-backup /data/gitlab-backup 備份指令gitlab-rake gitlab:backup:create生成備份文件存放的目錄

docker-compose文件

version: "2.4"
networks:
  net_A:
    external: true

volumes:
  gitlab_config:
    external: true
  gitlab_logs:
    external: true
  gitlab_data:
    external: true

services:
  ol-gitlab:
    image: gitlab/gitlab-ce:11.3.0-ce.0
    container_name: ol-gitlab
    hostname: ol-gitlab
    ports:
      - "80:80"
      - "443:443"
      - "22:22"
    networks:
      - net_A
    volumes:
      - "/etc/localtime:/etc/localtime"
      - "gitlab_config:/etc/gitlab"
      - "gitlab_logs:/var/log/gitlab"
      - "gitlab_data:/var/opt/gitlab"
      - "/data/gitlab-backup:/data/gitlab-backup"

    environment:
      GITLAB_OMNIBUS_CONFIG: |
        unicorn['worker_timeout'] = 60
        unicorn['worker_processes'] = 3
        unicorn['worker_memory_limit_min'] = "200 * 1 << 20"
        unicorn['worker_memory_limit_max'] = "300 * 1 << 20"
        sidekiq['concurrency'] = 10
        external_url 'https://你的域名'
        gitlab_rails['backup_path'] = "/data/gitlab-backup"
        gitlab_rails['backup_keep_time'] = 1296000
        gitlab_rails['time_zone'] = 'Asia/Shanghai'
        gitlab_rails['backup_archive_permissions'] = 0644
        gitlab_rails['gitlab_shell_ssh_port'] = 22
        nginx['enable'] = true
        nginx['client_max_body_size'] = '250m'
        nginx['redirect_http_to_https'] = true
        nginx['ssl_certificate'] = "你的公鑰"
        nginx['ssl_certificate_key'] = "你的私鑰"
        nginx['ssl_ciphers'] = "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256"
        nginx['ssl_prefer_server_ciphers'] = "on"
        nginx['ssl_protocols'] = "TLSv1.1 TLSv1.2"
        nginx['ssl_session_cache'] = "builtin:1000  shared:SSL:10m"
        nginx['listen_addresses'] = ["0.0.0.0"]
        nginx['http2_enabled'] = true
        postgresql['max_worker_processes'] = 8
        postgresql['shared_buffers'] = "256MB"
    mem_limit: 3096m
    restart: always
    user: root

相關說明:node

官方建議unicorn['worker_processes']該值是等於CPU核心數+1,能夠提升服務器的響應速度,若是內存只有4G,或者服務器上有其它業務,就不要改了,以避免內存不足。另外,這個參數最小值是2,設爲1服務器可能會卡死,但若是您的內存已消耗太高,請根據業務自行調整,好比8G內存建議您調整4左右,優化是持續性的工做。

如下是官方翻譯過來的內容:

CPU 

1核心CPU最多支持100個用戶,全部的workers和後臺任務都在同一個核心工做這將致使GitLab服務響應會有點緩慢。
2核心 支持500用戶,這也是官方推薦的最低標準。
4 核心支持2,000用戶。
8 核心支持5,000用戶。
16 核心支持10,000用戶。
32 核心支持20,000用戶。
64 核心支持40,000用戶。
若是想支持更多用戶,可使用集羣式架構

Memory 

安裝使用GitLab須要至少4GB可用內存(RAM + Swap)! 因爲操做系統和其餘正在運行的應用也會使用內存, 因此安裝GitLab前必定要注意當前服務器至少有4GB的可用內存. 少於4GB內存會致使在reconfigure的時候出現各類詭異的問題, 並且在使用過程當中也常常會出現500錯誤.

1GB 物理內存 + 3GB 交換分區 是最低的要求,但咱們 強烈反對 使用這樣的配置。 查看下面unicorn worker章節獲取更多建議。
2GB 物理內存 + 2GB 交換分區 支持100用戶,但服務響應會很慢。
4GB 物理內存 支持100用戶,也是 官方推薦 的配置。
8GB 物理內存 支持 1,000 用戶。
16GB 物理內存 支持 2,000 用戶。
32GB 物理內存 支持 4,000 用戶。
64GB 物理內存 支持 8,000 用戶。
128GB 物理內存 支持 16,000 用戶。
256GB 物理內存 支持 32,000 用戶。
若是想支持更多用戶,可使用集羣式架構
即便你服務器有足夠多的RAM, 也要給服務器至少分配2GB的交換分區。 由於使用交換分區能夠在你的可用內存波動的時候下降GitLab出錯的概率。

注意: Sidekiq的25個workers在查看進程(top或者htop)的時候會發現它會單獨顯示每一個worker,可是它們是共享內存分配的,這是由於Sidekiq是一個多線程的程序。 詳細內容查看下面關於Unicorn workers 的介紹。

複製ssl證書至容器目錄

證書生成請參考其餘文檔

複製到數據卷gitlab_data中
# cp -a ssl/ /data/docker_root_dir/volumes/gitlab_config/_data/

啓動gitlab容器

# docker-compose up -d

訪問全新安裝此版本是否正常

# docker exec ol-gitlab cat /opt/gitlab/embedded/service/gitlab-rails/VERSION
11.3.0

請使用 此配置參數的網址進行訪問 external_url 'https://你的域名'
第一次登陸,會讓你重置密碼,最少8個字符。
默認用戶名爲root

備份原gitlab

查找備份設定的備份路徑
# cat /etc/gitlab/gitlab.rb |grep 'backup_path'
gitlab_rails['backup_path'] = "/data/gitlab-backup"

默認在/var/opt/gitlab/backups

備份指令(建議與開發約定時間,中止使用的狀況下備份)

1.中止相關數據鏈接服務
# gitlab-ctl stop unicorn
    ok: down: unicorn: 0s, normally up
# gitlab-ctl stop sidekiq
    ok: down: sidekiq: 0s, normally up

2.備份數據
# gitlab-rake gitlab:backup:create

3.安全密鑰文件(重要)
/etc/gitlab/gitlab-secrets.json
不然會出現問題:https://gitlab.com/gitlab-org/gitlab-ce/issues/53465

須要一點時間,最後生成的文件
-rw-r--r-- 1 git git 11M Mar 14 10:41 1552531259_2019_03_14_11.3.0_gitlab_backup.tar
其中1552531259_2019_03_14_11.3.0爲備份的編號,恢復的時候用到。

備份恢復至新環境

1. 將備份好的文件 1552531259_2019_03_14_11.3.0_gitlab_backup.tar 和 gitlab-secrets.json複製至 gitlab_rails['backup_path'] = "/data/gitlab-backup" 設定的目錄中

2.中止相關數據鏈接服務
# docker exec -it ol-gitlab bash
# gitlab-ctl stop unicorn
    ok: down: unicorn: 0s, normally up
# gitlab-ctl stop sidekiq
    ok: down: sidekiq: 0s, normally up

3.恢復文件
# ls /data/gitlab-backup/
1552531259_2019_03_14_11.3.0_gitlab_backup.tar

# gitlab-rake gitlab:backup:restore BACKUP=1552531259_2019_03_14_11.3.0

Unpacking backup ... done
Before restoring the database, we will remove 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.
在還原數據庫以前,咱們將刪除全部現有的表以免未來的升級問題。注意若是你有
Gitlab數據庫中的自定義表這些表和全部數據將被移除的。

Do you want to continue (yes/no)? yes
Removing all tables. Press `Ctrl-C` within 5 seconds to abort
Cleaning the database ... 
done
Restoring database ... 

...中間省略...

This will rebuild an authorized_keys file.
You will lose any data stored in authorized_keys file.
這將重建受權authorized_keys密鑰文件。您將丟失任何存儲在受權密鑰文件中的數據
Do you want to continue (yes/no)? yes
Deleting tmp directories ... done
done
done
done
done
done
done
done

4.恢復安全文件
# cp /data/gitlab-backup/gitlab-secrets.json /etc/gitlab/

5.從新啓動相關服務
# gitlab-ctl start unicorn
ok: run: unicorn: (pid 2711) 0s
#  gitlab-ctl start sidekiq
ok: run: sidekiq: (pid 2803) 0s

6.登錄WEB頁面查看代碼是否存在

7. 帶驗證
重啓服務
# gitlab-ctl restart
ok: run: alertmanager: (pid 4983) 1s
ok: run: crond: (pid 4993) 0s
ok: run: gitaly: (pid 5001) 1s
ok: run: gitlab-monitor: (pid 5014) 0s
ok: run: gitlab-workhorse: (pid 5027) 0s
ok: run: logrotate: (pid 5039) 0s
ok: run: nginx: (pid 5045) 0s
ok: run: node-exporter: (pid 5053) 1s
ok: run: postgres-exporter: (pid 5058) 0s
ok: run: postgresql: (pid 5141) 1s
ok: run: prometheus: (pid 5150) 0s
ok: run: redis: (pid 5161) 0s
ok: run: redis-exporter: (pid 5166) 1s
ok: run: sidekiq: (pid 5173) 1s
ok: run: sshd: (pid 5180) 1s
ok: run: unicorn: (pid 5188) 0s

驗證指令
# gitlab-rake gitlab:check SANITIZE=true
Checking GitLab Shell ...

GitLab Shell version >= 8.3.3 ? ... OK (8.3.3)
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: ... 
3/1 ... repository is empty
5/2 ... ok
5/3 ... ok
5/6 ... ok
5/9 ... ok
5/10 ... ok
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Check GitLab API access: OK
Redis available via internal API: OK

Access to /var/opt/gitlab/.ssh/authorized_keys: OK
gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Sidekiq ...

Running? ... yes
Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Reply by email is disabled in config/gitlab.yml
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: ... 
3/1 ... yes
5/2 ... yes
5/3 ... yes
5/6 ... yes
5/9 ... yes
5/10 ... yes
Redis version >= 2.8.0? ... yes
Ruby version >= 2.3.5 ? ... yes (2.4.4)
Git version >= 2.9.5 ? ... yes (2.18.0)
Git user has default SSH configuration? ... yes
Active users: ... 17

Checking GitLab ... Finished

升級gitlab至最新版本

中止容器
# docker container stop ol-gitlab

刪除容器
docker rm ol-gitlab

把docker-compose文件中
image: gitlab/gitlab-ce:11.3.0-ce.0 
修改成
image: gitlab/gitlab-ce

啓動容器
# docker-compose up -d
Creating ol-gitlab ... done

全新安裝可參考 docker 部署 gitlab最新版本( 當前 11.8.1經過驗證)linux

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