Is it possible to deploy pomerium behind GCP load balancer?

I want to set up Pomerium inside my GCP load balancer. Is it possible?

which one do you have in mind? TCP or HTTPS?
It should be possible.

NB: Pomerium is based on Envoy Proxy, which is a foundation for Google HTTPS load balancer as well. Most users deploy Pomerium straight to the front line, and do not add additional LB in front of it unless you’ve got some special scaling or security use case.