spec:
  affinity:
    podAntiAffinity:
      requiredDuringSchedulingIgnoredDuringExecution:
      - labelSelector:
          matchExpressions:
          - key: security
            operator: In
            values:
            - s1
        topologyKey: kubernetes.io/hostname


这个能保证pod一个个起能分布在不同的node，但是当你有2个replica时，rollout
restart，他可能还会在一个节点启动

有人碰到过吗
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