将flask app发送到Elastic Beanstalk时连接被拒绝

Question

我正在尝试在amazon elastic beanstalk上部署我的flask应用程序。无论何时部署，我都会收到以下错误

2020/06/08 17:03:46 [error] 4311#0: *217 connect() failed (111: Connection refused) while connecting to upstream, client: 172.31.81.233, server: , request: "GET / HTTP/1.1", upstream: "http://127.0.0.1:8000/", host: "172.31.89.203"

我已经附上下面的标准输出和错误日志

/var/log/web.stdout.log
----------------------------------------
Jun  8 16:50:15 ip-172-31-89-203 web: * Serving Flask app "application" (lazy loading)
Jun  8 16:50:15 ip-172-31-89-203 web: * Environment: production
Jun  8 16:50:15 ip-172-31-89-203 web: WARNING: This is a development server. Do not use it in a production deployment.
Jun  8 16:50:15 ip-172-31-89-203 web: Use a production WSGI server instead.
Jun  8 16:50:15 ip-172-31-89-203 web: * Debug mode: on
Jun  8 16:50:15 ip-172-31-89-203 web: * Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)

这是我的应用程序的启动命令

    application.run(debug=True, use_reloader=False, host='0.0.0.0',port=5000)

该应用程序在本地运行良好，但部署到EB时运行不正常。问题是什么，如何解决

谢谢大家!

Answer 1

从application.py中删除主机和端口：

application.run(debug=True, use_reloader=False)

自动地，Flask应用程序在您的Elastic Beanstalk EC2实例中以127.0.0.1:5000提供，然后通过NGINX暴露在外部