Question

考虑一个看起来像这样的简单docker-compose.yml：

version: "3"
services:

  api:
      image: my-container:latest
      command: ["gunicorn", "--bind", "0.0.0.0:8000", "wsgi:app"]
      volumes:
          - ./api:/api

api服务是基于nginx的Python Flask网络应用，运行gunicorn。偶尔，我会破坏Flask应用程序，gunicorn将抛出非零退出代码并停止运行。然后我重建了所有容器。我尝试了以下重新启动容器，但没有成功：

version: "3"
services:

  api:
      image: my-container:latest
      command: ["gunicorn", "--bind", "0.0.0.0:8000", "wsgi:app"]
      volumes:
          - ./api:/api
      deploy:
          restart_policy:
              condition: on-failure
              delay: 5s
              max_attempts: 5
              window: 60s

此配置忽略deploy配置选项，并显示以下警告：WARNING: Some services (api) use the 'deploy' key, which will be ignored. Compose does not support 'deploy' configuration - use docker stack deploy to deploy to a swarm.我没有部署到群组。

如果使用非零退出代码失败，如何自动重启容器？

Answer 1

deploy部分仅在部署到docker stack deploy的群组时生效，docker-compose up和docker-compose run会忽略。

restart部分仅在使用docker-compose up和docker-compose run时生效。

version: "3"
services:

  api:
      image: my-container:latest
      command: ["gunicorn", "--bind", "0.0.0.0:8000", "wsgi:app"]
      volumes:
          - ./api:/api
      restart: no|always|on-failure|unless-stopped

请参阅文档：https://docs.docker.com/compose/compose-file/#restart

当Gunicorn休息时重启Docker容器

1 个答案: