Kubernetes StatefulSet AntiAffinity不工作

Question

我希望在EKS上部署一个RabbitMQ StatefulSet，并阻止它部署到运行Jenkins控制器的节点上。关联性规则不起作用。

pod选择器标签为：

NAME         READY   STATUS              RESTARTS   AGE     IP               NODE                                           NOMINATED NODE   READINESS GATES   LABELS
rabbitmq-0   1/1     Running             0          3m18s   10.x.x.z   ip-10-x-x-x.eu-west-2.compute.internal   <none>           <none>            app.kubernetes.io/component=broker,app.kubernetes.io/instance=rabbitmq,app.kubernetes.io/name=rabbitmq,app=rabbitmq,controller-revision-hash=rabbitmq-f6c7ddfff,statefulset.kubernetes.io/pod-name=rabbitmq-0


NAME                         READY   STATUS    RESTARTS   AGE   IP               NODE                                           NOMINATED NODE   READINESS GATES   LABELS
jenkins-8499877f97-6jvb6     2/2     Running   0          60m   10.x.x.x   ip-10-x-x-x.eu-west-2.compute.internal    <none>           <none>            app.kubernetes.io/component=jenkins,app.kubernetes.io/instance=jenkins,app.kubernetes.io/name=controller,pod-template-hash=8499877f97

节点具有选择器标签：

node.app/group=apps

RabbitMQ关联性规则包括：

affinity:
  nodeAffinity:
    requiredDuringSchedulingIgnoredDuringExecution:
      nodeSelectorTerms:
        - matchExpressions: # assign to eks apps node group
            - key: node.app/group
              operator: In
              values:
                - apps
  podAntiAffinity:
    requiredDuringSchedulingIgnoredDuringExecution:
      - labelSelector:
          matchExpressions: # don't assign to a node running jenkins controller
            - key: app.kubernetes.io/name
              operator: In
              values:
                - controller
            - key: app.kubernetes.io/component
              operator: In
              values:
                - jenkins
        topologyKey: kubernetes.io/hostname

任何提示或指针都将非常感谢。

#1当我说规则不起作用时，Rabbit pods被放置在与Jenkins控制器相同的节点上，这并不是必需的。没有错误。

Answer 1

因此，上面的规则确实有效，但不仅删除了现有的Helm部署，还删除了现有的部署PVC和PV。一旦一切都被清除并重新创建，亲和力规则就开始发挥作用了。