Hi all, I'm exploring helix for a project that involves multiple microservices on kubernetes. Say, ServiceA and ServiceB are consumers of two services - ServiceC and ServiceD. The two services, ServiceC and ServiceD manage two different resources in helix (they have a participant role, with partitions).
What's the recommended way to do the routing of rpc calls from service A/B to service C/D ? One possibility is to make the instances of serviceA and serviceB as spectators and use the routingTable APIs from helix <http://helix.apache.org/0.9.1-docs/tutorial_spectator.html>. but, this requires modifying both services to include and run the spectator library. Is it possible to integrate this capability into a load balancer or proxy instead ? I looked at envoy, linkerd and gce - none of them seem to have hooks to plug in this type of an agent. I'm fairly new to helix and load balancers so I probably missed some of the capabilities - Would appreciate your thoughts or pointers on this. -- Thanks and regards, Ravindra.
