.NET 项目无法从主机操作系统通过 localhost 连接到 WSL2 中的 Docker 容器

Question

I am not using Docker Desktop, I only installed the CLI on Ubuntu, on WSL2. I also downloaded RabbitMQ image and successfully connected to localhost:15672 from my browser on Windows host.

But, when it came to the .NET project, it wasn't possible. This is the connection string:

"host=localhost:5672;publisherConfirms=true;timeout=25;username=nerdstore;password=!abcd1234!"

One solution was to use eth0's inet IP address from within Ubuntu, but I have many projects using this connection, it is a pain to modify it every day, at least.

"host=123.45.67.890:5672;publisherConfirms=true;timeout=25;username=nerdstore;password=!abcd1234!"

Why is that I am able to connect to the container via browser but not form the .NET project and how could I manage to do it?

Answer 1

Add your Ubuntu IP 123.45.67.890 into hosts file with your custom hostname wsl2.ubuntu by below command.

Make sure you run PowerShell as administrator.

Add-Content -Path $env:windir\System32\drivers\etc\hosts -Value "`n123.45.67.890`twsl2.ubuntu" -Force

Then you connection would be like this

"host=wsl2.ubuntu:5672;publisherConfirms=true;timeout=25;username=nerdstore;password=!abcd1234!"