compass-adapters/chef/cookbooks/compass-rally/files/default/scenarios/nova/boot-from-volume.json

{
    "NovaServers.boot_server_from_volume": [
        {
            "args": {
                "flavor": {
                    "name": "m1.tiny"
                },
                "image": {
                    "name": "^cirros.*"
                },
                "volume_size": 1
            },
            "runner": {
                "type": "constant",
                "times": 1,
                "concurrency": 1
            },
            "context": {
                "users": {
                    "tenants": 1,
                    "users_per_tenant": 1
                }
            }
        }
    ]
}