dotnet核心docker容器-无法绑定到IPv6回送接口上的https://localhost:5001 [英] dotnet core docker container - Unable to bind to https://localhost:5001 on the IPv6 loopback interface

问题描述

我为.NET core创建了一个映像:

I created an image for .NET core:

FROM microsoft/dotnet:2.1-sdk AS build-env
WORKDIR /app

EXPOSE 80 443 5000 5001 5010 5011 7000 22676

#ENTRYPOINT [ "bash"]
CMD ["bash"]

我从中运行一个容器 docker container run -it --publish 5000:8018 --name versie3001 -v //c/tijd/mount:/app michel03

I run a container from it docker container run -it --publish 5000:8018 --name versie3001 -v //c/tijd/mount:/app michel03

进展顺利是，我看到了已挂载的文件. 当我用dotnet new razor创建一个新网站并用dotnet run运行它时，它尝试在端口5000/5001(默认端口)上运行，但是出现此错误:

What goes well is that I see the mounted files. When I create a new website with dotnet new razor and I run it with dotnet run it tries to run on port 5000/5001 (default ports) but I get this error:

warn: Microsoft.AspNetCore.Server.Kestrel[0]
      Unable to bind to https://localhost:5001 on the IPv6 loopback interface: 'Cannot assign requested address'.
warn: Microsoft.AspNetCore.Server.Kestrel[0]
      Unable to bind to http://localhost:5000 on the IPv6 loopback interface: 'Cannot assign requested address'.

实际上它说警告，但是结果是一样的，当我进入localhost:8018时，我没有得到结果(ERR_CONNECTION_REFUSED)

Actually it says warn, but the result is the same, when I go to localhost:8018 I get no result (ERR_CONNECTION_REFUSED)

我在做什么错了?

我看到一个回答，说我应该在我的容器文件中执行此操作: ENTRYPOINT [ "dotnet", "watch", "run", "--no-restore", "--urls", "https://0.0.0.0:5000"].它不会给我错误(输出为Now listening on: https://0.0.0.0:5000)，这很好，但是也无法从本地计算机上的https://localhost:8018连接.

I saw an answer saying I should do this in my containerfile: ENTRYPOINT [ "dotnet", "watch", "run", "--no-restore", "--urls", "https://0.0.0.0:5000"]. It does not give me the error (output is Now listening on: https://0.0.0.0:5000), which is good, but it also does not connect from https://localhost:8018 on my local machine.

推荐答案

您的--publish选项是向后的:它是-p <hostPort>:<containerPort>，因此对于您的设置，您需要--publish 8018:5000.

Your --publish option is backwards: it's -p <hostPort>:<containerPort>, so for your setup you'd want --publish 8018:5000.

除了启动问题之外，您确实需要使容器在0.0.0.0上侦听的选项(如果IPv6有效，则为:: 0).如果它绑定到本地主机，则将无法从其容器外部(包括其他容器和主机)访问该容器.

Startup issues aside, you do need the option to cause the container to listen on 0.0.0.0 (or ::0, if IPv6 works). If it binds to localhost it will be unreachable from outside its container, including from other containers and from the host.

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