@gaocegege: GitHub didn't allow me to assign the following users: yeya24.
Note that only caicloud members and repo collaborators can be assigned.
In response to [this](https://github.com/caicloud/ciao/issues/64):
>/assign @yeya24
Instructions for interacting with me using PR comments are available [here](https://github.com/caicloud/engineering/blob/master/docs/caicloud_bot.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes/test-infra](https://github.com/kubernetes/test-infra/issues/new?title=Prow%20issue:) repository.
/assign @yeya24