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Chapter 21. Node agent load affinity guidelines

Use the following guidelines to configure the node agent loadAffinity object in the DataProtectionApplication (DPA) custom resource (CR).

  • Use the spec.nodeagent.podConfig.nodeSelector object for simple node matching.
  • Use the loadAffinity.nodeSelector object without the podConfig.nodeSelector object for more complex scenarios.
  • You can use both podConfig.nodeSelector and loadAffinity.nodeSelector objects, but the loadAffinity object must be equal or more restrictive as compared to the podConfig object. In this scenario, the podConfig.nodeSelector labels must be a subset of the labels used in the loadAffinity.nodeSelector object.
  • You cannot use the matchExpressions and matchLabels fields if you have configured both podConfig.nodeSelector and loadAffinity.nodeSelector objects in the DPA.

  • See the following example to configure both podConfig.nodeSelector and loadAffinity.nodeSelector objects in the DPA. 

    ...
spec:
  configuration:
    nodeAgent:
      enable: true
      uploaderType: kopia
      loadAffinity:
        - nodeSelector:
            matchLabels:
              label.io/location: 'US'
              label.io/gpu: 'no'
      podConfig:
        nodeSelector:
          label.io/gpu: 'no'
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