{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000068137", "overcloud-controller-1": "np0000068138", "overcloud-controller-2": "np0000068139", "overcloud-novacompute-0": "np0000068140", "overcloud-novacompute-1": "np0000068141", "overcloud-novacompute-2": "np0000068142"}}}