Reset Node

Delete node from cluster

NODE='<node>'
kubectl drain $NODE --ignore-daemonsets --delete-local-data
kubectl cordon $NODE
kubectl delete node $NODE

Reset k8s node

sudo kubeadm reset -f
sudo rm -rf /etc/cni/net.d
sudo systemctl restart containerd

Reset VM

sudo rm -f /etc/yum.repos.d/kubernetes.repo
sudo rm -f /etc/containerd/config.toml
sudo rm -f /etc/modules-load.d/k8s.conf
sudo rm -f /etc/sysctl.d/k8s.conf

Ubuntu package remove

sudo apt-mark unhold containerd.io kubelet kubeadm
sudo apt remove -y containerd
sudo apt remove -y kubelet kubeadm

RHEL package remove

sudo dnf remove -y containerd
sudo dnf remove -y kubelet kubeadm