{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000073145", "overcloud-controller-1": "np0000073146", "overcloud-controller-2": "np0000073147", "overcloud-novacompute-0": "np0000073148", "overcloud-novacompute-1": "np0000073149", "overcloud-novacompute-2": "np0000073150"}}}