rally-openstack/samples/tasks/scenarios/keystone/create-tenant-with-users.yaml

---
  KeystoneBasic.create_tenant_with_users:
    -
      args:
        users_per_tenant: 10
      runner:
        type: "constant"
        times: 10
        concurrency: 10
      sla:
        failure_rate:
          max: 0