Restart of node (Perform this activity in Master node)

root@k8-pr-master:~# kubectl get nodes
NAME            STATUS   ROLES    AGE   VERSION
k8-pr-master    Ready    master   20h   v1.18.1
k8-pr-woker1    Ready       19h   v1.18.1
kb-pr-worker2   Ready       36m   v1.18.1

#Drain the node in worker2 node2

root@k8-pr-master:~#  kubectl drain --ignore-daemonsets --force --delete-local-data kb-pr-worker2
Flag --delete-local-data has been deprecated, This option is deprecated and will be deleted. Use --delete-emptydir-data.
node/kb-pr-worker2 cordoned
WARNING: ignoring DaemonSet-managed Pods: kube-system/calico-node-4hrtp, kube-system/kube-proxy-kdfhc
evicting pod default/nginx-deployment-d46f5678b-js8tl
evicting pod default/nginx-deployment-d46f5678b-hntfv
pod/nginx-deployment-d46f5678b-hntfv evicted
pod/nginx-deployment-d46f5678b-js8tl evicted
node/kb-pr-worker2 evicted

#To force termination of any problematic pods, use the following command

kubectl delete pod  -n= --grace-period=0 --force

#After cordon pod detail is

root@k8-pr-master:~# kubectl get nodes
NAME            STATUS                     ROLES    AGE   VERSION
k8-pr-master    Ready                      master   20h   v1.18.1
k8-pr-woker1    Ready                         19h   v1.18.1
kb-pr-worker2   Ready,SchedulingDisabled      37m   v1.18.1

#All the pods were moved worker node1

root@k8-pr-master:~# kubectl get pods -o wide
NAME                               READY   STATUS    RESTARTS   AGE   IP              NODE           NOMINATED NODE   READINESS GATES
nginx-deployment-d46f5678b-k4xp8   1/1     Running   0          31s   10.10.240.198   k8-pr-woker1              
nginx-deployment-d46f5678b-kt8qg   1/1     Running   0          31s   10.10.240.197   k8-pr-woker1              
nginx-deployment-d46f5678b-l5p8n   1/1     Running   1          19h   10.10.240.195   k8-pr-woker1              
nginx-deployment-d46f5678b-q65pj   1/1     Running   1          19h   10.10.240.196   k8-pr-woker1              

#View the pod details in particular node

root@k8-pr-master:~#   kubectl get pods -o wide --all-namespaces --field-selector=spec.nodeName==kb-pr-worker2
NAMESPACE     NAME                READY   STATUS    RESTARTS   AGE   IP             NODE            NOMINATED NODE   READINESS GATES
kube-system   calico-node-4hrtp   1/1     Running   0          38m   192.168.10.8   kb-pr-worker2              
kube-system   kube-proxy-kdfhc    1/1     Running   0          38m   192.168.10.8   kb-pr-worker2              

#After reboot of the worker2 node, uncordon

root@k8-pr-master:~# kubectl uncordon kb-pr-worker2
node/kb-pr-worker2 uncondoned
#Pod is ready
root@k8-pr-master:~# kubectl get nodes
NAME            STATUS   ROLES    AGE   VERSION
k8-pr-master    Ready    master   20h   v1.18.1
k8-pr-woker1    Ready       19h   v1.18.1
kb-pr-worker2   Ready       38m   v1.18.1
root@k8-pr-master:~# kubectl get pods -o wide
NAME                               READY   STATUS              RESTARTS   AGE     IP              NODE            NOMINATED NODE   READINESS GATES
nginx-deployment-d46f5678b-8jw8r   0/1     ContainerCreating   0          5s                kb-pr-worker2              
nginx-deployment-d46f5678b-jfrps   0/1     ContainerCreating   0          5s                kb-pr-worker2              
nginx-deployment-d46f5678b-k4xp8   1/1     Running             0          4m31s   10.10.240.198   k8-pr-woker1               
nginx-deployment-d46f5678b-kt8qg   1/1     Running             0          4m31s   10.10.240.197   k8-pr-woker1               
nginx-deployment-d46f5678b-l5p8n   1/1     Running             1          19h     10.10.240.195   k8-pr-woker1               
nginx-deployment-d46f5678b-q65pj   1/1     Running             1          19h     10.10.240.196   k8-pr-woker1