{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000072650", "overcloud-controller-1": "np0000072651", "overcloud-controller-2": "np0000072652", "overcloud-novacompute-0": "np0000072653", "overcloud-novacompute-1": "np0000072654", "overcloud-novacompute-2": "np0000072655"}}}