Might be a dumb question (apologies)....

I currently have a microservice application written in GO and using GRPC for all service to service communication. I am currently using client side load balancing written in GRPC and would like to switch over to a proxy method (istio with envoy).

I can easily enable istio and sidecar injection. What I am confused on is how I get envoy to RoundRobin across all the services. Do I need to do anything client side? Will envoy automatically see the services as they scale? Seems almost too good to be true that I just need to enable sidecar injection and everything should work like magic.

Thank you very much.