sudo kubectl get pods --all-namespaces -o wide
NAMESPACE     NAME                                    READY     STATUS    RESTARTS   AGE       IP               NODE
kube-system   etcd-k8s-master                      1/1       Running   0          1m        10.147.112.140   k8s-master
kube-system   kube-apiserver-k8s-master            1/1       Running   0          1m        10.147.112.140   k8s-master
kube-system   kube-controller-manager-k8s-master   1/1       Running   0          1m        10.147.112.140   k8s-master
kube-system   kube-dns-545bc4bfd4-jcklm            3/3       Running   0          44m       10.32.0.2        k8s-master
kube-system   kube-proxy-lnv7r                     1/1       Running   0          44m       10.147.112.140   k8s-master
kube-system   kube-scheduler-k8s-master            1/1       Running   0          1m        10.147.112.140   k8s-master
kube-system   weave-net-b2hkh                      2/2       Running   0          1m        10.147.112.140   k8s-master


#(There will be 2 coredns pods with different IP addresses, with kubernetes version 1.10.1)

# Verify the AVAIABLE flag for the deployment "kube-dns" or "coredns" will be changed to 1. (2 with kubernetes version 1.10.1)
#For coredns
sudo kubectl get deployment --all-namespaces
NAMESPACE     NAME      DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
kube-system   coredns   2         2         2            2           2m

#For kubedns
sudo kubectl get deployment --all-namespaces
NAMESPACE     NAME       DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
kube-system   kube-dns   1         1         1            1           1h