Access when a client cluster is deleted

If the IP addresses of all Control Plane nodes of the client cluster are unavailable, the client cluster configuration data is lost, but a client cluster backup exists, you can restore access to the cluster.

See backup recommendations for restoring access.

To restore access, follow these steps:

1. Deploy a temporary client cluster.

2. Connect S3 storage that contains the backup of client cluster namespaces, infrastructure providers, and ClusterRoles from the management cluster.

3. Restore the client cluster backup.

4. Record the client cluster configuration:

• the cluster API server address and security configuration details are available in the kubeadm-config ConfigMap in the kube-system namespace;

• the Ingress address is available in the External Connection Management Module SSC (shturval-ingress-controller).

After that, you can delete the test cluster.

5. Further steps follow the recovery procedure when a client cluster is lost.