去除污点，允许master节点部署pod

#查看污点策略，显示三个master节点都是NoSchedule

[root@master1 ~]# kubectl get no -o yaml | grep taint -A 5  
    taints:
    - effect: NoSchedule
      key: node-role.kubernetes.io/master
  status:
    addresses:
    - address: master1的IP
--
    taints:
    - effect: NoSchedule
      key: node-role.kubernetes.io/master
  status:
    addresses:
    - address: master2的IP
--
    taints:
    - effect: NoSchedule
      key: node-role.kubernetes.io/master
  status:
    addresses:


#去除污点，允许master节点部署pod 
[root@master1 ~]# kubectl taint nodes --all node-role.kubernetes.io/master-
node/master1 untainted
node/master2 untainted
node/master3 untainted
error: taint "node-role.kubernetes.io/master" not found
 
#再次查看，无显示，说明污点去除成功
[root@master1 ~]# kubectl get no -o yaml | grep taint -A 5