Add Dockerfile for .NET 8 SDK and runtime setup

Author: sven-pohl

src/Application/src/Dockerfile

@@ -0,0 +1,27 @@
+# Use the official .NET 8 SDK image as a build stage
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the project file and restore dependencies
+COPY *.csproj ./
+RUN dotnet restore
+
+# Copy the rest of the application code
+COPY . ./
+
+# Build the application
+RUN dotnet publish -c Release -o out
+
+# Use the official .NET 8 runtime image as a runtime stage
+FROM mcr.microsoft.com/dotnet/aspnet:8.0
+
+# Set the working directory
+WORKDIR /app
+
+# Copy the built application from the build stage
+COPY --from=build /app/out .
+
+# Set the entry point for the application
+ENTRYPOINT ["dotnet", "RazorPagesTestSample.dll"]