ON AL NODES
git clone https://github.com/sandervanvugt/cka
cd cka
./setup-container.sh
sudo ./setup-kubetools-specific-version.sh

ON CONTROL NODE
sudo kubeadm init
READ COMMAND OUTPUT!!!!

ON CONTROL NODE
mkdir -p $HOME/.kube
  sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
  sudo chown $(id -u):$(id -g) $HOME/.kube/config
kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.25.0/manifests/calico.yaml

PRINT THE JOIN COMMAND
sudo kubeadm token create --print-join-command

ON ALL WORKER NODES
run the join command that resulted from the previous step

ON CONTROL NODE
kubectl get nodes

MORE INFORMATION
https://learning.oreilly.com/videos/certified-kubernetes-administrator/9780138103804/9780138103804-CKA3_01_02_00/