{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000073154", "overcloud-controller-1": "np0000073155", "overcloud-controller-2": "np0000073156", "overcloud-novacompute-0": "np0000073157", "overcloud-novacompute-1": "np0000073158", "overcloud-novacompute-2": "np0000073159"}}}