nova/placement-api-ref/source/update-allocations-request.json

{
    "allocations": [
        {
            "resource_provider": {
                "uuid": "844ac34d-620e-474c-833c-4c9921251353"
            },
            "resources": {
                "MEMORY_MB": 512,
                "VCPU": 2
            }
        },
        {
            "resource_provider": {
                "uuid": "92637880-2d79-43c6-afab-d860886c6391"
            },
            "resources": {
                "DISK_GB": 5
            }
        }
    ],
    "project_id": "6e3b2ce9-9175-4830-a862-b9de690bdceb",
    "user_id": "81c516e3-5e0e-4dcb-9a38-4473d229a950"
}