I have a setup Istio Multi-cluster with Multi-Primary on different networks following the link: Istio / Install Multi-Primary on different networks
As per verification steps all seems fine. Also Step-by-step Diagnosis for multi-network looks fine Istio / Install Multi-Primary on different networks
But seems in the following scenario the automatic service discovery is not happening. Is it expected to happen automatically or I have to do something.
Scenario not working: ServiceA deployed in Cluster1 (namespace sample) and ServiceB deployed in Cluster2 (namespace sample). Now when I am trying to call ServiceB from serviceA (like http://ServiceB.sample:8080) it’s saying bad address. But when I create only the SVC of ServiceB on Cluster1 then it started working fine.
I have only found when the SVC is created in the cluster1 then only the service on cluster2 can be recognized in cluster1. I expected this service discovery to happen automatically.