I'm trying to make an Windows Nano Server container that runs an ASP.NET Core app.
I'm building it on Windows Server 2016. I can make it work, but there is one odd problem.

The only way I can make it work is to build the image, run the container, then start an interactive Powershell session and use Invoke-WebRequest http://localhost:5000. Once I do that, the app is visible from other servers (I can't browse the container locally from the Win2016 Server due to a known NAT bug.)

Here's my Dockerfile:

FROM microsoft/dotnet:sdk-nanoserver
ARG source
COPY /ContainerPOC/ .
RUN dotnet restore --runtime win10-x64 .

RUN dotnet build --framework netcoreapp1.1 --runtime win10-x64 .

CMD dotnet run --framework netcoreapp1.1

Any idea why this won't "just work?"

  • What's happening in the other ways? May 18, 2017 at 4:27
  • If I don't do the Invoke-WebRequest, the app doesn't respond to requests from outside. May 18, 2017 at 5:50

2 Answers 2


As it is unclear what command and subcommands you used to run the docker container it could be possible that you run the container without using the -p subcommand. In this case docker run -p 5000:5000 <image_name> could solve the issue.


You need run entrypoint like as:

FROM microsoft/aspnetcore:1.1.1

ENTRYPOINT ["dotnet", "netcoreApp.dll"]

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