Comment 2 for bug 1423579

I found that the nova-api-* services fail to start on the nova-cloud-controller unit, as haproxy is already bound to the attempted TCP port. Once manually worked around that, another issue surfaced on n-c-c:

BadRequest: Malformed request url (HTTP 400) (Request-ID: req-9d773c81-75f0-4dec-ba6e-b11f015ec54f)
ERROR: Malformed request url (HTTP 400) (Request-ID: req-9d773c81-75f0-4dec-ba6e-b11f015ec54f)

More detail @ http://paste.ubuntu.com/10510592/

It appears to be non-trivial to deploy a working Essex cloud from charms at this point, but I'll confer with the rest of the os charm dev team to determine how deep the essex-functionality rabbit hole could go.