Red Hat Summit 红帽全球峰会支持控制台（Console）开发人员开始试用联系人

4.4.4. Sample node affinity rules

The following examples demonstrate node affinity.

4.4.4.1. Node affinity with matching labels
复制链接

The following example demonstrates node affinity for a node and pod with matching labels:

  • The Node1 node has the label zone:us: 

    $ oc label node node1 zone=us
    提示

    You can alternatively apply the following YAML to add the label: 

    kind: Node
apiVersion: v1
metadata:
  name: <node_name>
  labels:
    zone: us
#...

  • The pod-s1 pod has the zone and us key/value pair under a required node affinity rule: 

    $ cat pod-s1.yaml

    Example output

    apiVersion: v1
kind: Pod
metadata:
  name: pod-s1
spec:
  securityContext:
    runAsNonRoot: true
    seccompProfile:
      type: RuntimeDefault
  containers:
    - image: "docker.io/ocpqe/hello-pod"
      name: hello-pod
      securityContext:
        allowPrivilegeEscalation: false
        capabilities:
          drop: [ALL]
  affinity:
    nodeAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
        nodeSelectorTerms:
          - matchExpressions:
            - key: "zone"
              operator: In
              values:
              - us
#...

  • The pod-s1 pod can be scheduled on Node1: 

    $ oc get pod -o wide

    Example output

    NAME     READY     STATUS       RESTARTS   AGE      IP      NODE
pod-s1   1/1       Running      0          4m       IP1     node1

Red Hat logoGithubredditYoutubeTwitter

学习

尝试、购买和销售

社区

關於紅帽

我们提供强化的解决方案，使企业能够更轻松地跨平台和环境（从核心数据中心到网络边缘）工作。

让开源更具包容性

红帽致力于替换我们的代码、文档和 Web 属性中存在问题的语言。欲了解更多详情，请参阅红帽博客.

关于红帽文档

通过我们的产品和服务，以及可以信赖的内容，帮助红帽用户创新并实现他们的目标。 了解我们当前的更新.

Legal Notice

Theme

© 2026 Red Hat返回顶部