---
  CinderVolumes.create_and_extend_volume:
    -
      args:
        size: 1
        new_size: 2
      runner:
        type: "constant"
        times: 2
        concurrency: 2
      context:
        users:
          tenants: 1
          users_per_tenant: 1
    -
      args:
        size:
          min: 1
          max: 5
        new_size:
          min: 6
          max: 10
      runner:
        type: "constant"
        times: 2
        concurrency: 2
      context:
        users:
          tenants: 1
          users_per_tenant: 1