Kubernetes集群节点添加、取消污点 taints

查看集群节点污点状况

[root@master1 ~] # kubectl describe node master2 | grep Taints
Taints:             node-role.kubernetes.io /master :NoSchedule

取消污点

[root@master1 ~]# kubectl taint node master2  node-role.kubernetes.io/master-
node/master2 untainted
您在 /var/spool/mail/root 中有新邮件

添加污点

[root@master1 ~]# kubectl taint node master2  node-role.kubernetes.io/master=:NoSchedule
node/master2 tainted
您在 /var/spool/mail/root 中有新邮件

注:node-role.kubernetes.io 为集群标签，查看方式：

[root@master1 ~]# kubectl describe node master2
Name:               master2
Roles:              master
Labels:             beta.kubernetes.io/arch=amd64
                    beta.kubernetes.io/os=linux
                    kubernetes.io/arch=amd64
                    kubernetes.io/hostname=master2
                    kubernetes.io/os=linux
                    node-role.kubernetes.io/master=