kubeadm reset

sudo rm -rf $HOME/.kube

kubeadm init --kubernetes-version=1.18.1  --apiserver-advertise-address=192.168.8.45 --image-repository registry.aliyuncs.com/google_containers  --service-cidr=10.10.0.0/16 --pod-network-cidr=10.122.0.0/16 --ignore-preflight-errors=Swap 

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

重启完成查看状态

sudo kubectl get nodes

正常输出就可以了