Hi Artyugin, Thanks for reading!
If you’re wanting lots of custom events / controls at your fetch/cache level, then running an NGINX as a reverse proxy for caching is going to be the best bet.
You can get pretty close though, using stackdriver and the loadbalancer logging for the CDN. Effectively, each request is logged in stackdriver, and you can run an export script that’ll push all that data to your analytics solution.
Hope that helps!