Running Docker for Windows, Error when exposing Ports

Question

I am aware there are a lot of questions about running Docker on windows, however this question is about running the brand new Docker for Windows, on Windows.
In my case I am

Answer 1

If you are here because you have this issue in Visual Studio 2019:

According to this post, the VS team is preparing a fix for this issue in 16.5 version, meanwhile, you can add the property "publishAllPorts": true in your launchSettings.json, for example:

"Docker": {
      "commandName": "Docker",
      "launchBrowser": true,
      "launchUrl": "{Scheme}://{ServiceHost}:44374", #<== Set a fixed port
      "environmentVariables": {
        "ASPNETCORE_URLS": "https://+:44374;https://+:5000",
        "ASPNETCORE_HTTPS_PORT": "44374"
      },
      "publishAllPorts": true, #<== This is equivalent to the -P flag in 'docker run'
      "useSSL": true
    }

Notice that the property "httpPort": XYZT is not defined. Having it defined will make the workaround not work.

It worked for me with this setup:

• Windows 10 1709 Build 16299.1747 with Fast Start OFF
• Docker Desktop 2.2.05 (43884)
• Docker Engine 19.03.8
• Visual Studio 2019 Enterprise 16.5.4.
• Microsoft.VisualStudio.Azure.Containers.Tools.Targets 1.10.8

I realized that the command VS was creating, contained the -p parameter twice, one with the port I specified and another with port 80, like this: -p 3010:80 -p 3010:3010.

After adding publishAllPorts it now creates the container and I can remotely debug it.