ci: experimenting with Composite.Dockerfile

Kemkas.Web/Composite.Dockerfile

@@ -0,0 +1,15 @@
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+WORKDIR /app
+EXPOSE 80
+EXPOSE 443
+
+ARG FE_TAG=latest
+ARG BE_TAG=latest
+
+FROM ghcr.io/morbalint/kemkas-fe:${FE_TAG} as frontend
+FROM ghcr.io/morbalint/kemkas-be:${BE_TAG} as backend
+
+FROM base AS final
+COPY --from=backend /app .
+COPY --from=frontend /usr/share/nginx/html ./wwwroot
+ENTRYPOINT ["dotnet", "Kemkas.Web.dll"]