# Pastebin 8ai4uff3
[rwellum@kolla-k8s k8s]$ cat <<EOF | kubectl create -f -
> apiVersion: v1
> kind: Pod
> metadata:
>   name: busybox-sleep
> spec:
>   containers:
>   - name: busybox
>     image: busybox
>     args:
>     - sleep
>     - "1000000"
> ---
> apiVersion: v1
> kind: Pod
> metadata:
>   name: busybox-sleep-less
> spec:
>   containers:
>   - name: busybox
>     image: busybox
>     args:
>     - sleep
>     - "1000"
> EOF
pod "busybox-sleep" created
pod "busybox-sleep-less" created
[rwellum@kolla-k8s k8s]$ kubectl exec busybox-sleep -- ls /
bin
dev
etc
home
proc
root
run
sys
tmp
usr
var

[rwellum@kolla-k8s k8s]$ kubectl exec busybox-sleep -- nslookup kubernetes
Server:    10.3.3.10
Address 1: 10.3.3.10 kube-dns.kube-system.svc.cluster.local

Name:      kubernetes
Address 1: 10.3.3.1 kubernetes.default.svc.cluster.local