安裝 GitLab Runner 方式 [Jonathan's Wiki 筆記]

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====== 安裝 GitLab Runner 方式 ======
===== Ubuntu 24.04 =====
  - 下載最新版本的 GitLab Runner <cli>
sudo curl -L --output /usr/local/bin/gitlab-runner "https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64"
</cli>
  - 賦予執行權限<cli>
sudo chmod +x /usr/local/bin/gitlab-runner
</cli>
  - 創建 GitLab Runner 用戶<cli>
sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash
</cli>
  - 安裝並啟動服務<cli>
sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner
sudo gitlab-runner start
</cli>
  - 驗證安裝<cli>
gitlab-runner --version
</cli>

===== 將 Runner 加入 GitLab =====
  - 進入 GitLab Admin 介面 -> CI/CD -> Runner -> Create Instance Runner \\ {{:tech:螢幕擷取畫面_2025-11-06_063917.png?800|}}
  - 輸入 Tag Exp. docker , 勾選 Run untagged job \\ {{:tech:螢幕擷取畫面_2025-11-06_064133.png?600|}}
  - 點下 Create Runner 後, 選 Platform Exp. Linux , 依據以下 Step1 的 CLI 到 Runner 主機執行 Exp. <cli>
gitlab-runner register  --url https://gitlab.ichiayi.com  --token glrt-7xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxKdToyCw.01.120st7l4l
</cli>
  - 等一下點選 Runner 如果沒問題就會出現剛剛建立的 Runner 

===== 設定可執行 Docker in Docker =====
  * 因為 Kaniko 已經不再維護, 改用需要設定 Privileged 的 BuildKit 
  * 如果使用 BuildKit 沒有設定 Privileged 執行 docker build 時會出現類似以下的錯誤訊息<cli>
mount: permission denied (are you root?)
Could not mount /sys/kernel/security.
AppArmor detection and --privileged mode might break.
</cli>
  * 編輯 /etc/gitlab-runner/config.toml <file>
:
[[runners]]
:
  executor = "docker"
:
  [runners.docker]
    tls_verify = false
    image = "docker:27-cli"
    privileged = true
    disable_entrypoint_overwrite = false
    oom_kill_disable = false
    disable_cache = false
    volumes = ["/cache", "/certs/client"]
    shm_size = 0
    network_mtu = 0
</file>
  * 重新啟動 Runner <cli>
sudo systemctl restart gitlab-runner
</cli>
  * 查看 Runner 狀態 <cli>
sudo gitlab-runner status
</cli>
  * 驗證配置 <cli>
sudo gitlab-runner verify
</cli>

{{tag>gitlab}}