metadata service is not well supported by image, need config drive/cloud-init

[cdent]

For example, default ubuntu images won't find the metadata server. We want to be able to use images off the shelve, so we need to support what they do. The way to do this would be to, somehow, add a config drive to the images.

This presents some additional problems, though, such as needing a way to store or send ssh-keys for when those images are being created. Which requires the concept of a user/identity. Which then leads to authN and authZ.

All of which begins to get really annoying and not what this was going to be about, back when it was just a "toy".