song
46 lines
2.3 KiB
Markdown
46 lines
2.3 KiB
Markdown
---
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reviewers:
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- mtaufen
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- dawnchen
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title: Reconfigure a Node's Kubelet in a Live Cluster
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content_type: task
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min-kubernetes-server-version: v1.11
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---
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<!-- overview -->
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{{< feature-state for_k8s_version="v1.22" state="deprecated" >}}
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{{< caution >}}
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The [Dynamic Kubelet Configuration](https://github.com/kubernetes/enhancements/tree/master/keps/sig-node/281-dynamic-kubelet-configuration)
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feature is deprecated in 1.22 and removed in 1.24.
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Please switch to alternative means distributing configuration to the Nodes of your cluster.
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{{< /caution >}}
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[Dynamic Kubelet Configuration](https://github.com/kubernetes/enhancements/issues/281)
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allowed you to change the configuration of each
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{{< glossary_tooltip text="kubelet" term_id="kubelet" >}} in a running Kubernetes cluster,
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by deploying a {{< glossary_tooltip text="ConfigMap" term_id="configmap" >}} and configuring
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each {{< glossary_tooltip term_id="node" >}} to use it.
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Please find documentation on this feature in [earlier versions of documentation](https://v1-23.docs.kubernetes.io/docs/tasks/administer-cluster/reconfigure-kubelet/).
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## Migrating from using Dynamic Kubelet Configuration
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There is no recommended replacement for this feature that works generically
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across various Kubernetes distributions. If you are using managed Kubernetes
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version, please consult with the vendor hosting Kubernetes for the best
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practices for customizing your Kubernetes. If you are using `kubeadm`, refer to
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[Configuring each kubelet in your cluster using kubeadm](/docs/setup/production-environment/tools/kubeadm/kubelet-integration/).
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In order to migrate off the Dynamic Kubelet Configuration feature, the
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alternative mechanism should be used to distribute kubelet configuration files.
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In order to apply configuration, config file must be updated and kubelet restarted.
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See the [Set Kubelet parameters via a config file](/docs/tasks/administer-cluster/kubelet-config-file/)
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for information.
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Please note, the `DynamicKubeletConfig` feature gate cannot be set on a kubelet
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starting v1.24 as it has no effect. However, the feature gate is not removed
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from the API server or the controller manager before v1.26. This is designed for
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the control plane to support nodes with older versions of kubelets and for
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satisfying the [Kubernetes version skew policy](/releases/version-skew-policy/).
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