Comment 8 for bug 1595219

RCA: detached keystone keystone-db task does not properly wait for all database tasks before attempting to to use the database. It only waited for the database tasks on the controllers so when this paired with the detached-database plugin the keystone-db task may run before the database is actually setup. As part of Bug 1591256, we updated the core keystone-db task to wait for all the database tasks before starting and so this needs to get ported to the plugin as well. See https://github.com/openstack/fuel-library/commit/bedd29639a500038a4d9f864f1d3d5a6e50345cc

ETA: 6/24/16