Updating the Control-Plane IP on a Single-Node Kubernetes Cluster

When the IP address of the only control-plane node changes, the cluster’s PKI, static manifests, and client kubeconfigs all become invalid. The following procedure walks through the minimal set of changes required to bring the node back online with the new address. Identify every file that stil references the old IP cd /etc/kubernetes grep - ...

Posted on Mon, 24 Aug 2026 16:41:29 +0000 by IchBin