Taint

Taint

污点的类型

• NoSchedule

• PreferNoSchedule

• NoExecute

打污点

kubectl taint node worker01 bubba=value:NoSchedule

删除污点

kubectl taint node worker01 bubba-

Demo

准备 yaml 文件

cat > taint-deployment.yaml << EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: taint-deployment
spec:
  replicas: 8
  selector:
    matchLabels:
      app: nginx
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - image: nginx
        name: nginx
        ports:
        - containerPort: 80
EOF

给节点 worker01 打上 taint

kubectl taint node worker01 bubba=value:NoSchedule

使用上方的 yaml 文件创建 Deployment

kubectl apply -f taint-deployment.yaml

查看 pod 调度的节点信息

kubectl get pod -o wide

删除Deployment后再分别给worker01节点打上其它两个污点，然后查看Pod的调度信息