Credentials check is too vague

[Evan]

"image-store: Missing or invalid authentication info."

Digging at this further, I arrive at:

 60 except (KeyError, ksclient.exceptions.Unauthorized,
 61 ksclient.exceptions.AuthorizationFailure):
 62 raise self.ImageStoreException(
 63 "Missing or invalid authentication info."
 64 )

So this has eaten the details of the exception and left us with no way to understand why it failed. This should instead surface the original message, with all of its detail, up to the health check page. It should also provide the arguments it used in create_container such that Webops can reproduce this with the openstack command line tools.

[Celso Providelo (cprov)]

https://code.launchpad.net/~cprov/uci-engine/test-image-store/+merge/224996 (landed in trunk r643) alleviates the problem, by raising ImageStoreException() with the configuration auth_url and the keystone HTTP error message.

Let's check with IS if it's really enough for reproducing the problem.

[Vincent Ladeuil (vila)]

logging the exception may be an option

Backstory: https://wiki.canonical.com/UbuntuEngineering/CI/IncidentLog/2014-07-03-staging-deployment-failed