Code review comment for lp://qastaging/~justin-fathomdb/nova/ec2-api-with-glance

Thanks Rick. If the way forward is to fix all the image services, that's fine with me. I did try suggesting more of a 'design by contract' approach a few weeks ago:
https://code.launchpad.net/~justin-fathomdb/nova/strongly-typed-image-model

But we tabled that until the Design Summit.

It sounds like the approach you're suggesting could benefit from this approach though. If I won't get shot down again, I'm happy to recode the strong-typed image model approach...

Otherwise, I'm fine with any approach as long as we can get this working smoothly in Cactus!