PodAntiAffinity

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Elasticsearch example, official doc: [1]

apiVersion: elasticsearch.k8s.elastic.co/v1
kind: Elasticsearch
metadata:
  name: quickstart
spec:
  version: 8.4.3
  nodeSets:
  - name: default
    count: 3
    podTemplate:
      spec:
        affinity:
          podAntiAffinity:
            preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 100
              podAffinityTerm:
                labelSelector:
                  matchLabels:
                    elasticsearch.k8s.elastic.co/cluster-name: quickstart
                topologyKey: kubernetes.io/hostname


See also[edit]

  • https://www.elastic.co/guide/en/cloud-on-k8s/current/k8s-advanced-node-scheduling.html#k8s_a_single_elasticsearch_node_per_kubernetes_host_default
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