{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000072659", "overcloud-controller-1": "np0000072660", "overcloud-controller-2": "np0000072661", "overcloud-novacompute-0": "np0000072662", "overcloud-novacompute-1": "np0000072663", "overcloud-novacompute-2": "np0000072664"}}}