compass-adapters/chef/cookbooks/compass-rally/files/default/scenarios/keystone/create-and-list-users.json

{
    "KeystoneBasic.create_and_list_users": [
        {
            "args": {
                "name_length": 10
            },
            "runner": {
                "type": "constant",
                "times": 5,
                "concurrency": 5
            }
        }
    ]
}