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agent-tolerations.asciidoc

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Kubernetes control plane nodes can use taints to limit the workloads that can run on them. The manifest for standalone {agent} defines tolerations to run on these. Agents running on control plane nodes collect metrics from the control plane components (scheduler, controller manager) of Kubernetes. To disable {agent} from running on control plane nodes, remove the following part of the DaemonSet spec:

spec:
  # Tolerations are needed to run Elastic Agent on Kubernetes control-plane nodes.
  # Agents running on control-plane nodes collect metrics from the control plane components (scheduler, controller manager) of Kubernetes
  tolerations:
    - key: node-role.kubernetes.io/control-plane
      effect: NoSchedule
    - key: node-role.kubernetes.io/master
      effect: NoSchedule

Both these two tolerations do the same, but node-role.kubernetes.io/master is deprecated as of Kubernetes version v1.25.