给两个节点添加标签，让pod调度上去，但是kubectl describe pod 发现报错了，因为master不可以被调度，kube002也是设置了污点禁止被调度了
Warning FailedScheduling 4m33s (x2 over 9m34s) default-scheduler 0/4 nodes are available:
1 node(s) had untolerated taint {key: kube002}, 1 node(s) had untolerated taint {node-role.kubernetes.io/master: },
2 node(s) didn't match Pod's node affinity/selector. preemption: 0/4 nodes are available: 4 Preemption is not helpful for scheduling..
查看不可以被调度，master节点
# kubectl describe node vm-qa-kubemaster001.xxm |grep -i schedulable Unschedulable: false
查看污点键值对
#kubectl describe node vm-qa-kubemaster001.zz.apus.com Taints: node-role.kubernetes.io/master:NoSchedule
这表示该节点有一个污点，键为node-role.kubernetes.io/master，值为空，效果为NoSchedule
添加污点容忍度，指定调度节点
apiVersion: v1
kind: Pod
metadata:
name: my-pod
spec:
containers:
- name: my-container
image: my-image
tolerations:
- key: "node-role.kubernetes.io/master"
operator: "Equal"
value: ""
effect: "NoSchedule"
nodeName: "vm-qa-kubemaster001.xxxm"
新增如下：
tolerations:
- key: "node-role.kubernetes.io/master"
operator: "Equal"
value: ""
effect: "NoSchedule"
nodeName: "vm-qa-kubemaster001.xxxm"
标签：node,kubernetes,deploy,调度,role,io,master From： https://www.cnblogs.com/machangwei-8/p/18049053