[nova] Getting compute nodes disabled by default

Hi Nova team, I was wondering if there was a way so that new compute nodes appear as disabled when they pop up. Indeed, the default workflow is that they first appear in the "nova" availability zone, and enabled by default. This doesn't really fit a production environment. I'd prefer if they could appear disabled, and if I had to enable them manually, when I'm finished running validity tests, and when my scripts have finished moving the new compute in the correct availability zone. Your thoughts? Cheers, Thomas Goirand (zigo)