Kubeadmin Part1 in Vagrantfile in Kubernetes for the Absolute Beginners

kubeadmin Part1 in Vagrantfile there is no set up for master and worker node. Do I nead create vm’s in my local machine to see information in vagrant file?

The full setup for Kuberenetes on your vagrant/virtualbox cluster is in a tutorial in the CKA repo. Go through the tutorial; it will tell you how to get the cluster set up.