def METHOD_NAME():
    bastion_node = get_bastion_node(auth=False)
    prepare_private_registry(bastion_node, RANCHER_RKE2_VERSION)
    ag_nodes = prepare_airgap_rke2(bastion_node, NUMBER_OF_INSTANCES,
                                   'system_default_registry')
    server_ops = RKE2_SERVER_OPTIONS + " --system-default-registry={}".format(
        bastion_node.host_name)
    agent_ops = RKE2_AGENT_OPTIONS + " --system-default-registry={}".format(
        bastion_node.host_name)
    deploy_airgap_cluster(bastion_node, ag_nodes, "rke2",
                          server_ops, agent_ops)