使用 watchtower 自動更新 docker images

.env 檔加入 THE_HOST

echo THE_HOST=`hostname` >> .env

在 docker-compose.yml 內 services: 加入 watchtower: Exp

services:
  your-app:
    image: your-image:latest
    # 其他應用配置...

  watchtower:
    container_name: watchtower
    image: containrrr/watchtower
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      - TZ=Asia/Taipei
      - WATCHTOWER_SCHEDULE=0 0 4 * * *  # 每天凌晨4點檢查更新
      - WATCHTOWER_CLEANUP=true  # 清理舊的映像檔
      #- WATCHTOWER_NOTIFICATIONS=slack  # 使用 Slack 通知
      #- SLACK_HOOK_URL=https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK
      #- WATCHTOWER_NOTIFICATIONS=email  # 使用 EMail 通知
      #- WATCHTOWER_NOTIFICATIONS_HOSTNAME=${THE_HOST}
      #- [email protected]
      #- [email protected]
      #- WATCHTOWER_NOTIFICATION_EMAIL_SERVER=smtp.gmail.com
      #- WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT=587
      #- [email protected]
      #- WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD=app_password
      #- WATCHTOWER_NOTIFICATION_EMAIL_DELAY=2
    labels:
      - "com.centurylinklabs.watchtower.enable=true"
    restart: unless-stopped

直接執行 docker cli

docker run --rm -v /var/run/docker.sock:/var/run/docker.sock containrrr/watchtower --run-once

或是

docker compose run watchtower --run-once

參考 - https://containrrr.dev/watchtower/http-api-mode/

如果不想定期檢查更新, 可以透過呼叫 API 方式進行檢查更新

Exp. Listen Port:8383 , API-Token:mytoken-123456789

https://claude.ai/

https://containrrr.dev/watchtower/