K8S Cluster 삭제

# 삭제할 대상 확인
kubectl get nodes -o wide

# node 삭제
kubectl delete node {node}


# Kubernetes 초기화
sudo kubeadm reset -f
sudo rm -rf ~/.kube /etc/kubernetes/pki /etc/kubernetes/*.conf
sudo rm -rf /etc/kubernetes /var/lib/etcd /var/lib/kubelet /etc/cni /opt/cni /var/lib/dockershim
sudo ip link delete cni0 2>/dev/null
sudo ip link delete flannel.1 2>/dev/null
sudo iptables -F && sudo iptables -t nat -F && sudo iptables -t mangle -F && sudo iptables -X
# 선택
sudo systemctl stop kubelet
sudo systemctl disable kubelet

# containerd 완전 삭제
sudo systemctl stop containerd
sudo apt purge -y containerd
sudo rm -rf /etc/containerd /var/lib/containerd /usr/local/bin/containerd* /usr/local/bin/ctr