Use the provisioner to start the instances.

def create(ctx, scenario_name, driver_name):  # pragma: no cover
    """ Use the provisioner to start the instances. """
    args = ctx.obj.get('args')
    subcommand = base._get_subcommand(__name__)
    command_args = {
        'subcommand': subcommand,
        'driver_name': driver_name,
    }

    base.execute_cmdline_scenarios(scenario_name, args, command_args)