Cacheable restores dotnet core

Dockerfile

FROM microsoft/dotnet:2.2-sdk AS restore
WORKDIR /tmp/build
COPY ./*.sln .
COPY ./*/*.csproj ./
RUN for file in $(ls *.csproj); do mkdir -p ${file%.*}/ && mv $file ${file%.*}/; done
RUN dotnet restore

# Copy in the source files
FROM restore AS build
WORKDIR /tmp/build
COPY . .
RUN dotnet publish -o output MyApp/MyApp.csproj

FROM microsoft/dotnet:2.2-aspnetcore-runtime AS runtime
WORKDIR /app
COPY --from=build /tmp/build/MyApp/output .
ENTRYPOINT [ "dotnet", "MyApp.dll"]