本文介绍了无法通过打开的端口访问Docker应用的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 我在容器内有一个flask应用程序。我使用 docker run -p 5000:5000 pyprojects_web 运行此容器pre> 它会答复 *正在投放Flask应用程序 debateit.py *环境:生产警告:不要在生产环境中使用开发服务器。 改用生产WSGI服务器。 *调试模式:关闭 *在http://127.0.0.1:5000/上运行(按CTRL + C退出) 如果我运行 docker container ls 我得到 容器ID图像命令创建的状态端口名称 2221298e6e2c pyprojects_web flask run 12分钟前向上12分钟0.0.0.0:5000->5000/tcp elated_joliot 如果我访问 http://127.0.0.1:5000我得到了: 无法访问该网站网页位于http://127.0.0.1 :5000 /可能暂时关闭,或者已永久移动到新的网址。 ERR_SOCKET_NOT_CONNECTED http:// localhost:5000 会给出类似的响应。 通常的建议是使用0.0监听容器内的所有连接。 0.0-但我已经这样做了。这是我的应用程序: 从应用程序导入应用程序 如果__name__ == __main__: app.run(host = 0.0.0.0) 如果我从我的容器内部卷曲可以很好地工作: docker exec -it 2221298e6e2c curl http:// localhost:5000 HTML响应较长,并且我的服务器日志得到: 127.0.0.1--[2018年6月4日01:00:16] GET / HTTP / 1.1 200- 鉴于这些结果,并且考虑到我拥有 0.0.0.0主机,还有什么可以尝试的? 谢谢。解决方案因此,基于注释,很明显您实际上并没有在 0.0.0.0 ,这可能是(注意容器的命令),因为您在运行新版本的flask必须将一些args传递给烧瓶运行-$ = 尝试烧瓶运行--host = 0.0 .0.0 作为容器中的命令,我认为这可能会解决您的期望:) 烧瓶文档。 I have a flask app inside of a container. I run this container withdocker run -p 5000:5000 pyprojects_webIt replies * Serving Flask app "debateit.py" * Environment: production WARNING: Do not use the development server in a production environment. Use a production WSGI server instead. * Debug mode: off * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)If I run docker container lsI getCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES2221298e6e2c pyprojects_web "flask run" 12 minutes ago Up 12 minutes 0.0.0.0:5000->5000/tcp elated_joliotIf I access http://127.0.0.1:5000 I get:This site can’t be reachedThe web page at http://127.0.0.1:5000/ might be temporarily down or it may have moved permanently to a new web address.ERR_SOCKET_NOT_CONNECTEDhttp://localhost:5000 gives a similar response.The normal advice is to listen to all connections inside your container with 0.0.0.0 - but I am already doing that. Here is my app:from app import appif __name__ == "__main__": app.run(host="0.0.0.0")If I curl from inside of my container it works perfectly:docker exec -it 2221298e6e2c curl http://localhost:5000with a long HTML response, and my server logs get:127.0.0.1 - - [04/Jun/2018 01:00:16] "GET / HTTP/1.1" 200 -Given these results, and given that I have a "0.0.0.0" host, what is left to try?Thanks. 解决方案 So based on the comments it's clear you're not actually running on 0.0.0.0 and that's probably (noticing your command for the container) because you're running a newer version of flask where I think you have to pass some args to flask run.Try flask run --host=0.0.0.0 as the command in your container and I think that will probably work out how you're expecting :)More info at the Flask Docs. 这篇关于无法通过打开的端口访问Docker应用的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 09-22 14:35