Esxi autoregistration doesn't work

Hello.

I’m trying to deploy ESXi via MAAS. I set my vCenter credentials in MAAS UI (Settings -> Images -> vmware) and expect that host will be registered in my vCenter automaticaly after deploy. But it doesn’t. In /var/log/maas/log I see:
usage: vcenter [-h] [-c CONFIG] [-s SERVER] [-u USERNAME] [-p PASSWORD] [-D DATACENTER] [-H HOST] [-U ESXI_USERNAME] [-P ESXI_PASSWORD] vcenter: error: the following fields are missing: vc_username, vc_password, vc_server

What I’m doing wrong?

@ltrager can you take a look at this?