some problems after reboot kubernetes1.19 nodes

kubectl get no
kubectl describe no node1 | grep -i taint
kubectl taint nodes --all node.kubernetes.io/unreachable:NoSchedule-
kubectl delete pod ${Terminating} --grace-period=0 --force
ansible -i /yaml/hosts nodes -m shell -a "systemctl restart docker"
ansible -i /yaml/hosts nodes -m shell -a "rm -f /certs/kubelet-*"
kubectl delete csr `kubectl get csr | awk '{print $1}'`
kubectl certificate approve `kubectl get csr | awk '{print $1}'`