dns

Pod DNS Name

Easiest way for lookup is dumping /etc/resolv.conf

sh-4.2# cat /etc/resolv.conf
search test.svc.cluster.local svc.cluster.local cluster.local eu-west-1.compute.internal
nameserver 172.30.0.10
options ndots:5

So this pod can be reached via .test.svc.cluster.local with being the deployment name and test being the namespace.