k8s 污点之 PreferNoSchedule的调度案例

PreferNoSchedule的调度案例

1.给worker232打污点

kubectl taint node worker232 school=baimei:PreferNoSchedule

kubectl describe nodes  | grep -i taints

2.编写资源清单并验证

cat 01-taint.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: deploy-taint
spec:
  replicas: 10
  selector:
    matchExpressions:
    - key: apps
      values: 
      - "v1"
      - "v2"
      operator: NotIn
  template:
    metadata:
      labels:
        school: baimei
    spec:
      # 如果测试效果不明显，可以使用nodeName来测试
      #nodeName: worker232
      containers:
      - name: v1
        image: harbor.baimei.com/baimei-apps/apps:v1

kubectl get pods -o wide

3.取消污点

kubectl taint node worker232 school-

kubectl describe nodes  | grep -i taints

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