Date: 2026-02-06
The Kubernetes control-plane/node IP on drg-k8s.auth.home.lan was changed from using 192.168.1.216 to using 192.168.1.9 as the stable (static) address.
This removed the need for a secondary IP on enp1s0 and aligned:
--node-ipOperator request: revoke 192.168.1.216 and make 192.168.1.9 permanent.
192.168.1.216/24.enp1s0 to set:
192.168.1.9/24 (static)192.168.1.1192.168.1.1, search domain homeFile:
/etc/netplan/99-enp1s0-static.yaml192.168.1.9:
/etc/default/kubelet: KUBELET_EXTRA_ARGS=--node-ip=192.168.1.9https://192.168.1.9:6443.192.168.1.9.192.168.1.9./etc/hosts to map:
192.168.1.9 drg-k8s.auth.home.lanCreated on drg-k8s:
/home/ax_julian/temp/reip-2026-02-06/etc-kubernetes-backup.tgz/home/ax_julian/temp/reip-2026-02-06/etc-netplan-backup.tgz/home/ax_julian/temp/reip-2026-02-06/kubeconfig-old//home/ax_julian/temp/reip-2026-02-06/pki-old/Rollback (high level):
/etc/netplan/ from etc-netplan-backup.tgz and netplan apply./etc/kubernetes/ from etc-kubernetes-backup.tgz.sudo systemctl restart kubelet.ip -4 addr show enp1s0 shows only 192.168.1.9/24 with valid_lft forever.kubectl get nodes -o wide shows INTERNAL-IP = 192.168.1.9.kubectl cluster-info reports the control plane at https://192.168.1.9:6443.192.168.1.216, they must be updated to 192.168.1.9.