Recovery when the IP address of a Control Plane node changes

Before proceeding with recovery, install module etcd-helper.

If the IP address of one of the Control Plane nodes is changed, then restore the ETCD cluster using the etcdhelper ip command.

 /usr/local/bin/etcdhelper ip --nodeip=ENTER-NEW-NODE-IP-ADDRESS

As a result of the command, the following will be executed:

• Backup manifests and certificates.
• Changed host IP address in manifests.
• Removed ETCD certificates, with the exception of the CA certificate.
• Certificates have been generated, including for the API server.
• The IP address of the node in the ETCD cluster has been changed.