FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build WORKDIR /src COPY backend.csproj . RUN dotnet restore COPY . . RUN dotnet publish -c Release -o /app/publish FROM mcr.microsoft.com/dotnet/aspnet:9.0 WORKDIR /app COPY --from=build /app/publish . RUN mkdir -p /app/data ENV ASPNETCORE_URLS=http://+:5050 EXPOSE 5050 ENTRYPOINT ["dotnet", "backend.dll"]