rally-openstack/samples/tasks/scenarios/cinder/create-from-volume-and-delete-volume.json

{
    "CinderVolumes.create_from_volume_and_delete_volume": [
        {
            "args": {
                "size": 1
            },
            "runner": {
                "type": "constant",
                "times": 2,
                "concurrency": 2
            },
            "context": {
                "users": {
                    "tenants": 1,
                    "users_per_tenant": 1
                },
                "volumes": {
                    "size": 1
                }
            }
        }
    ]
}