kubeadm reset
sudo apt remove --purge kubelet kubectl kubeadm
sudo rm -rf /etc/kubernetes/manifests/* /etc/kubernetes/kubelet.conf /etc/kubernetes/pki/ca.crt $HOME/.kube
apt install kubeadm kubectl kubelet
sudo kubeadm init --pod-network-cidr=10.244.0.0/16 --token-ttl 0
# add --ignore-preflight-errors=All to join command