Recreate an existing K8s cluster with kubeadm

Hello,

I am new to K8s. I have a cluster running on a single EL7 VM and v1.5.2 version of kubernetes.

The script that set up that cluster installed the following packages

kubernetes-1.5.2-0.7.git269f928.el7.x86_64
kubernetes-client-1.5.2-0.7.git269f928.el7.x86_64
kubernetes-master-1.5.2-0.7.git269f928.el7.x86_64
kubernetes-node-1.5.2-0.7.git269f928.el7.x86_64

How can I recreate the cluster after installing v1.20 kubeadm,kubelet,kubectl ?

Many thanks,

George