kubeadm join loadBalancerIP:6443 --token xxxx --discovery-token-ca-cert-hash sha256:xxxx

kubeadm join loadBalancerIP:6443 --token xxxx --discovery-token-ca-cert-hash sha256:xxxx --control-plane --certificate-key xxxx

echo $(kubeadm token create --print-join-command) --control-plane --certificate-key $(kubeadm init phase upload-certs --upload-certs | grep -vw -e certificate -e Namespace)

kubeadm token create --print-join-command