linux集群怎么删除重建

# 停止所有节点
kubectl drain <node-name> --ignore-daemonsets
kubectl delete node <node-name>

# 删除集群管理软件
sudo apt-get purge kubeadm kubelet kubectl
sudo rm -rf /etc/kubernetes /var/lib/kubelet /var/lib/etcd

# 清理iptables规则
sudo iptables -F && sudo iptables -t nat -F && sudo iptables -t mangle -F && sudo iptables -X

# 安装Kubernetes基础软件
sudo apt-get update && sudo apt-get install -y apt-transport-https curl
curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
echo "deb https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
sudo apt-get update && sudo apt-get install -y kubelet kubeadm kubectl
sudo apt-mark hold kubelet kubeadm kubectl

# 初始化主节点
sudo kubeadm init

# 配置kubectl
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config

# 加入工作节点（在工作节点上执行）
sudo kubeadm join <master-ip>:<master-port> --token <token> --discovery-token-ca-cert-hash sha256:<hash>