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我在一个集群中有 5 个节点(测试)。我已将它们标记为以下内容:

节点:

  • 命名空间=A
  • 命名空间=A
  • 命名空间=B
  • 命名空间=B
  • 命名空间=C

我应用了污点和容忍度,nodeAffinity 和 podAntiAffinity。我们的节点启用了自动缩放。但是,我们的节点并没有扩大,所有的 pod 都在 1 个节点中。我在这个链接Kubernetes 中读过:在集群中均匀分布副本,使用 podAntiAffinity、节点 Affinity、污点和容忍度并不能保证这个要求。我们的要求是,1 个 pod 应该均匀地部署在节点上,并且应该相应地扩展。

我错过了什么?

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: prometheus
  labels:
    app: prometheus
spec:
  serviceName: "prometheus"
  selector:
    matchLabels:
      name: prometheus
  template:
    metadata:
      labels:
        name: prometheus
        app: prometheus
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: namespace
                operator: In
                values:
                - A
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - podAffinityTerm:
              labelSelector:
                matchExpressions:
                - key: app
                  operator: In
                  values:
                  - prometheus
              topologyKey: kubernetes.io/hostname
            weight: 100
      containers:
      - name: prometheus
        image: quay.io/prometheus/prometheus:v2.6.0
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 200Mi
      terminationGracePeriodSeconds: 30
      tolerations:
      - key: namespace
        operator: Equal
        value: A
4

1 回答 1

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您是否尝试nodeSelector过将 pod 安排在您附加标签的节点上?

  nodeSelector:
    namespace: A
于 2020-09-09T18:29:13.180 回答