DNS Based Service Discovery

Scenario

In namespace disco, the application discovery-app relies on DNS-based discovery of peer pods. The service discovery-svc is supposed to return all backend pod IPs, but currently:

kubectl exec deploy/testpod -n disco -- nslookup discovery-svc.disco.svc.cluster.local

returns only one IP instead of individual pod IPs. The application cannot discover its peers and fails to form a cluster.

Task

Fix the service configuration so that DNS resolution of discovery-svc returns one IP per pod, allowing the application to discover all running instances.

Property	Value
Namespace	disco
Deployment	discovery-app (3 replicas)
Service	discovery-svc
Pod label	app=discovery