pod节点反亲和性
定义两个pod，第一个pod作为基准，第二个pod跟它调度节点相反
[root@master01 yaml]# cat pod-required-anti-affinity-demo.yaml
apiVersion: v1
kind: Pod
metadata:
name: pod-first
labels:
app1: myapp1
tier: frontend
spec:
containers:
- name: myapp
image: ikubernetes/myapp:v1
---
apiVersion: v1
kind: Pod
metadata:
name: pod-second
labels:
app: backend
tier: db
spec:
containers:
- name: busybox
image: busybox:latest
imagePullPolicy: IfNotPresent
command: ["sh","-c","sleep 3600"]
affinity:
podAntiAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
- labelSelector:
matchExpressions:
- {key: app1, operator: In, values: ["myapp1"]}
topologyKey: kubernetes.io/hostname
创建一下
[root@master01 yaml]# kubectl apply -f pod-required-anti-affinity-demo.yaml
pod/pod-ani unchanged
pod/pod-second created
查看刚创建的pod，会发现他们不会调度到同一节点
最后在附上张美图
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