# 缩容
kubectl scale -n kube-system deployment coredns --replicas=1
# 设置污点
kubectl taint node master node-role.kubernetes.io/master="":NoSchedule
# 取消污点
kubectl taint node master1 node-role.kubernetes.io/master-
deployment daemonset 回滚
kubectl rollout history daemonset -n kube-system fluentd-elasticsearch
kubectl rollout undo --to-revision=1 daemonset -n kube-system fluentd-elasticsearch