{"parameter_defaults": {"HostnameMap": {"overcloud-controller-0": "np0000072641", "overcloud-controller-1": "np0000072642", "overcloud-controller-2": "np0000072643", "overcloud-computehci-0": "np0000072644", "overcloud-computehci-1": "np0000072645", "overcloud-computehci-2": "np0000072646"}}}