Decommissioning the node from the cluster

1. Cordon the node via kubectl cordon <node>
2. Drain via kubectl drain <node> --ignore-daemonsets --delete-emptydir-data
3. Empty the finalizer via kubectl patch node/<node> -p '{"metadata":{"finalizers":[]}}' --type=merge
4. Finally, delete the node from the cluster via kubectl delete node <node>