Comment 22 for bug 1812672

Package-wise this is fix-released for disco (stein). We're only switching to apache2+mod_wsgi in stein from a package pov because it's a pretty big switch to SRU, plus the rocky packages are py2 by default. https://launchpad.net/ubuntu/+source/nova/2:19.0.0~b1~git2018120609.c9dca64fa6-0ubuntu4