How to map changes of .NET application from docker and rebuild? - docker

Question

I am currently developing a NET Application and I have to run bash scripts that:
1.Build the project
2.dotnet publish -c Release the project
3.copy the publish folder to a path for Dockerfile to take on.
Can this be done directly from the dockerfile?
What I am running now:
Bash-script
dotnet build ../${serverSrcFolder} &&
dotnet publish -c Release ../${serverSrcFolder} --output $(pwd)/${serverPublishDestFolder}
Dockerfile
FROM microsoft/dotnet:2.1-aspnetcore-runtime
WORKDIR /app
COPY . /app
ENTRYPOINT [ "dotnet" , "./publish/Server.dll" ]
EXPOSE 9400
EXPOSE 6379
The publish folder stays near the dockerfile.
ParentFolder
Dockerfile
publish
The serverPublishDestFolder from the bash script above is this publish folder.
Can I somehow always map the publish folder whenever it changes from within the dockerfile?

Answer 1

You can do three steps above inside the Dockerfile
e.g.
ROM microsoft/dotnet:2.1.5-aspnetcore-runtime AS base
WORKDIR /app
ENV ASPNETCORE_URLS http://+:5000
EXPOSE 5000
FROM microsoft/dotnet:2.1.403-sdk AS build
WORKDIR /src
COPY src/WebApi/WebApi.csproj src/WebApi/
RUN dotnet restore src/WebApi/WebApi.csproj
COPY . .
WORKDIR /src/src/WebApi
RUN dotnet build WebApi.csproj -c Release -o /app
FROM build AS publish
RUN dotnet publish WebApi.csproj -c Release -o /app
FROM base AS final
WORKDIR /app
COPY --from=publish /app .
ENTRYPOINT ["dotnet", "WebApi.dll"]
This Dockerfile can be easily generated by Visual Studio 2017