Comment 4 for bug 1603528

"2. Create Openstack Cluster using 14.04+UCA"

UCA stands for Ubuntu Cloud Archive. It fetches packages from Ubuntu repositories which we don't maintain. UCA packages are maintained directly by Canonical.

I was able to find horizon.js [1] file in python-django-horizon package [2]. It should be collected during call of sub-collectstatic command.

[1] /usr/lib/python2.7/dist-packages/horizon/static/horizon/js/horizon.js
[2] http://ubuntu-cloud.archive.canonical.com/ubuntu/pool/main/h/horizon/python-django-horizon_9.0.1-0ubuntu2~cloud0_all.deb