I'm trying to figure out if Google Cloud HTTP Load Balancer that is attached to the GKE cluster when an ingress point is created supports grpc
so far, all I can find is this documents showing how to use envoy to expose a service
https://cloud.google.com/solutions/exposing-grpc-services-on-gke-using-envoy-proxy
but nothing that works with the ingress preconfigured on Google Cloud
Yes it does. You will need to enable HTTP/2 support in the HTTP Load balancer. Here are instructions on how to setup HTTP/2 for load balancing with Ingress in GKE.