绑定容器端口以托管在Dockerfile中 [英] Bind container port to host inside Dockerfile

问题描述

通常在绑定端口时，我会执行docker run -p hostport:dockerport ...，但是我可以在Dockerfile中指定端口绑定吗?

Normally when binding port, I would do docker run -p hostport:dockerport ..., but can I specify the port binding inside my Dockerfile ?

我正在启动一个监听端口的服务器.服务器通过cmd行参数获取端口.如果我不必在两个位置(在docker run命令和Dockerfile中)重复端口，那将是很棒的事情

I'm starting a server that listens on a port. The server takes the port through cmd line arguments. It would be great if I don't have to repeat the port in two places (in docker run command and in Dockerfile)

推荐答案

在dockerfile中，您只能使用expose. EXPOSE指令通知Docker该容器在运行时监听指定的网络端口. EXPOSE不会使主机可以访问容器的端口.

In dockerfile you can only use expose. The EXPOSE instruction informs Docker that the container listens on the specified network ports at runtime. EXPOSE does not make the ports of the container accessible to the host.

要将Hostport分配给容器，您需要执行publish(-p).或-P标志以发布所有公开端口.

To allocate Hostport to container you need to do publish (-p). Or the -P flag to publish all of the exposed ports.

要自动执行该过程，可以使用docker-compose.在docker compose文件中，您可以编排多个具有不同参数的docker run命令.

To automate the process, You can use docker-compose. In docker compose file you can orchestrate multiple docker run commands with different arguments.

这篇关于绑定容器端口以托管在Dockerfile中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IT屋！