{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000069408", "overcloud-controller-1": "np0000069409", "overcloud-controller-2": "np0000069410", "overcloud-computehci-0": "np0000069411", "overcloud-computehci-1": "np0000069412", "overcloud-computehci-2": "np0000069413"}}}