Added dockerfile

Dockerfile

@@ -0,0 +1,22 @@
+# Use the official ASP.NET Core runtime as a parent image
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+WORKDIR /app
+EXPOSE 5000
+
+# Use the SDK image to build the app
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+WORKDIR /src
+COPY ["douwco.be.csproj", "./"]
+RUN dotnet restore "./douwco.be.csproj"
+COPY . .
+WORKDIR "/src/."
+RUN dotnet build "douwco.be.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "douwco.be.csproj" -c Release -o /app/publish
+
+# Use the runtime image to run the app
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "douwco.be.dll"]