Dnsutils

apt install dnsutils

kubectl run -i -t dnsutils --image=tutum/dnsutils  -- bash
If you don't see a command prompt, try pressing enter.
root@dnsutils:/#

root@dnsutils:/# nslookup redis-master.default
Server:		172.20.0.10
Address:	172.20.0.10#53

Name:	redis-master.default.svc.cluster.local
Address: 172.20.80.83

kubectl exec -i -t dnsutils -- nslookup redis-master.default
Error from server (NotFound): pods "dnsutils" not found

Failed to load logs: container "dnsutils" in pod "dnsutils" is waiting to start: trying and failing to pull image
Reason: BadRequest (400)

See also

• kubectl exec, kubectl exec -it
• kubectl: [ cp | config | wait | create | delete | edit | explain | apply | exec | get | set | drain | uncordon | rolling-update | rollout | logs | run | auth | label | annotate | version | top | diff | debug | replace | describe | port-forward | proxy | scale | rollout | api-resources | expose deployment | expose | patch | attach | get endpoints | ~/.kube/config | kubectl logs --help | kubectl --help, kubectl-convert, kubectl autoscale, kubectl.kubernetes.io, --dry-run