[Feature] Use FQDN when connecting the Pods

[DanielDorado]

Feature description

Instead of observing URL:

redis-cluster-0.redis-cluster:6379

It should be used the FQDN: redis-cluster-0.redis-cluster.svc.cluster.local:6379

Use case or motivation

No response

Would you like to work on this?

Yes, I'd like to open a PR