Dreamhost progress

[Ian Booth]

> 
> Next step is generate image metadata for the trusty image given by
> `nova image-list` which is the same as before:
> 
> $ juju metadata generate-image -i c55094e9-699c-4da9-95b4-2e2e75f4c66e -s trusty
> 
> Then bootstrap with --upload-tools and --metadata-source pointing at
> the directory with the image streams.
>

This won't work yet if cloud storage is removed or not available. We are
currently implementing the code needed to import custom image metadata as
structured records in the state database. Currently, the image metadata is
copied to the environment's cloud storage (ie swift for openstack).