Feature request: Set hostname as well when creating an instance

[nevill]

There is a parameter named hostname when calling API RunInstances.

I'd like to have it set as well when creating instances in Terraform.
For example:

resource "qingcloud_instance" "gateway" {
  name             = "gateway"
  image_id         = "centos75x64"
  keypair_ids      = ["keypair_id"]
  managed_vxnet_id = "vxnet_id"
}

Will create an instance named gateway, but its hostname is i-xxxxx.
It should set instance hostname as gateway as well, same behavior as calling RunInstances with parameter hostname.

[runzexia]

LGTM