单纯的强制重启：

#cat restartall.sh

#!/bin/bash

nodes=$(kubectl get nodes  | awk   'NR != 1{print $1}')
for node in ${nodes[@]}
do
    echo "==== Shut down $node ===="
    #ssh $node sudo shutdown -h 1
    ssh $node  shutdown -r +1  #1分钟后重启
done