Comment 14 for bug 1376716

Aha! I worked out a way to do this using AMT:

ubuntu@maas:~$ yes|AMT_PASSWORD=Password1+ amttool 10.0.0.150 powerdown
host ., powerdown [y/N] ? execute: powerdown
result: pt_status: not permitted
ubuntu@maas:~$ yes|AMT_PASSWORD=Password1+ amttool 10.0.0.150 reset cd
host ., reset [y/N] ? execute: reset
result: pt_status: success
ubuntu@maas:~$ yes|AMT_PASSWORD=Password1+ amttool 10.0.0.150 powerdown
host ., powerdown [y/N] ? execute: powerdown
result: pt_status: success
ubuntu@maas:~$ AMT_PASSWORD=Password1+ amttool 10.0.0.150 info
### AMT info on machine '10.0.0.150' ###
AMT version: 8.1.30
Hostname: .
Powerstate: S5 (soft-off)
Remote Control Capabilities:
    IanaOemNumber 157
    OemDefinedCapabilities IDER SOL BiosSetup
    SpecialCommandsSupported PXE-boot HD-boot cd-boot
    SystemCapabilitiesSupported powercycle powerdown powerup reset
    SystemFirmwareCapabilities 7821

I'll throw this into the template as a special override if we get the "pt_status: not_permitted" response if everyone agrees?