https://code.launchpad.net/~gnuoy/charm-helpers/idservice-ctxt-update/+merge/254869
https://code.launchpad.net/~gnuoy/charms/trusty/neutron-openvswitch/dvr-support
https://code.launchpad.net/~gnuoy/charms/trusty/neutron-api/pass-keystone-auth