一、拓扑域约束¶

Kubernetes 的 topologySpreadConstraints（拓扑域约束）是一种高级的调度策略，用于确保工作负载的副本在集群中的不同拓扑域（如节点、可用区、区域等）之间均匀分布。

拓扑域约束yaml示例文件：

apiVersion: apps/v1
kind: Deployment
metadata:
  name: example-deployment
spec:
  replicas: 3
  selector:
    matchLabels:
      app: example
  template:
    metadata:
      labels:
        app: example
    spec:
      topologySpreadConstraints:
      - maxSkew: 1
        whenUnsatisfiable: DoNotSchedule
        topologyKey: kubernetes.io/hostname
        labelSelector:
          matchLabels:
            app: example
      containers:
      - name: example
        image: registry.cn-hangzhou.aliyuncs.com/zq-demo/nginx:1.14.2

Kubernetes拓扑扩散调度入门：topologySpreadConstraints核心参数与用法

一、拓扑域约束¶

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