How to build .Net core application in Docker?

Question

I am working on.Net core application. I am trying to build application using docker container. Below is my file structure.

Root Folder

-MerchWebServices
  -MerchWebServices.sln
  -Dockerfile
  -MWS.AspNetCoreApis
    -bin
    -obj
    -out
    -MWS.AspNetCoreApis

Below is my dockerfile

#FROM microsoft/dotnet:2.1-runtime
FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app

COPY MWS.AspNetCoreApis/out .

ENV ASPNETCORE_URLS http://*:44332
EXPOSE 44332

COPY scripts/entrypoint.sh entrypoint.sh
RUN chmod +x /app/entrypoint.sh
CMD tail -f /dev/null
ENTRYPOINT ["dotnet", "MWS.AspNetCoreApis.dll"]

Using below command I am building my application.

docker build -t merchwebservices .

After running above command, image gets created successfully. After that I am running below command.

docker run -p 44332:44332 -d  merchwebservices

I am able to run this command. My container is running now. I am not able to run the web application on

https://localhost:44332/swagger/index.html

I am not sure why I am not able to run the application now. Can someone help me to fix this issue? Any help would be appreciated. Thanks.

Answer 1

First make sure you container is running by inspecting docker ps output.

Then try to access http://localhost:44332/swagger/index.html .

If your app doesn't require any certificate, no need to use https

If it doesn't work inspect docker logs -f container_id output