{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000069417", "overcloud-controller-1": "np0000069418", "overcloud-controller-2": "np0000069419", "overcloud-novacompute-0": "np0000069420", "overcloud-novacompute-1": "np0000069421", "overcloud-novacompute-2": "np0000069422"}}}