Add project files.

Dockerfile

@@ -0,0 +1,22 @@
+# Learn about building .NET container images:
+# https://github.com/dotnet/dotnet-docker/blob/main/samples/README.md
+FROM --platform=$BUILDPLATFORM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+ARG TARGETARCH
+WORKDIR /source
+
+# copy csproj and restore as distinct layers
+COPY PizzaBot/*.csproj .
+RUN dotnet restore -a $TARGETARCH
+
+# copy and publish app and libraries
+COPY PizzaBot/. .
+RUN dotnet publish -a $TARGETARCH --no-restore -o /app
+
+
+# final stage/image
+FROM mcr.microsoft.com/dotnet/aspnet:8.0
+EXPOSE 8080
+WORKDIR /app
+COPY --from=build /app .
+USER $APP_UID
+ENTRYPOINT ["./PizzaBot"]