website/content/en/docs/reference/setup-tools/kubeadm/kubeadm-reset.md

reviewers, title, content_template, weight

reviewers	title	content_template	weight
luxas jbeda	kubeadm reset	templates/concept	60

{{% capture overview %}} Performs a best effort revert of changes made by kubeadm init or kubeadm join. {{% /capture %}}

{{% capture body %}} {{< include "generated/kubeadm_reset.md" >}}

Reset workflow

kubeadm reset is responsible for cleaning up a node local file system from files that were created using the kubeadm init or kubeadm join commands. For control-plane nodes reset also removes the local stacked etcd member of this node from the etcd cluster and also removes this node's information from the kubeadm ClusterStatus object. ClusterStatus is a kubeadm managed Kubernetes API object that holds a list of kube-apiserver endpoints.

kubeadm reset phase can be used to execute the separate phases of the above workflow. To skip a list of phases you can use the --skip-phases flag, which works in a similar way to the kubeadm join and kubeadm init phase runners.

External etcd clean up

kubeadm reset will not delete any etcd data if external etcd is used. This means that if you run kubeadm init again using the same etcd endpoints, you will see state from previous clusters.

To wipe etcd data it is recommended you use a client like etcdctl, such as:

etcdctl del "" --prefix

See the etcd documentation for more information. {{% /capture %}}

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• kubeadm init to bootstrap a Kubernetes control-plane node
• kubeadm join to bootstrap a Kubernetes worker node and join it to the cluster {{% /capture %}}