cinder (liberty) fails to retrieve volume limit in Horizon

Using standard settings for cinder and horizon the default limit values are not available in horizon.

Cinder-api logs reports:

2015-11-22 20:43:02.496 26576 ERROR cinder.api.middleware.fault [req-c81cacd3-e5a0-4dfc-b1b0-680699e651f8 064eaabb523b42888a56dc91d0c3178b 3fa076cc13944d3db05ee75b32cfadac - - -] Caught error: Authorization failed: Unable to establish connection to http://localhost:5000/v3/auth/tokens
2015-11-22 20:43:12.106 1021 ERROR cinder.api.middleware.fault [req-66cb5508-6f07-4303-a4eb-a7c44f01ce44 064eaabb523b42888a56dc91d0c3178b 3fa076cc13944d3db05ee75b32cfadac - - -] Caught error: Authorization failed: Unable to establish connection to http://localhost:5000/v3/auth/tokens

A quick look at the config files didn't reveal any of them pointing to localhost (vs the proper keystone host).

Adding the following lines to cinder.conf:

[keymgr]
encryption_auth_url = http://10.0.10.254:5000/v3

Seems to resolve the issue.

(solution thanks to this RDO bug: https://bugzilla.redhat.com/show_bug.cgi?id=1272572)