Comment 7 for bug 2048209

No other collections or modifications there. I've re-bootstrapped OSA to make sure.
The only override for Magnum I have is magnum_cert_manager_type=barbican, not sure if it's relevant.

Also have Octavia installed, but apparently it only comes into play during cluster creation if LB for Kuber Master is ticked.

I initially installed magnum about 2 months ago and had that failure right off. I've eventually solved it by manually assigning roles, so don't remember much, except that it was somehow connected to project='' although it failed later in the code, but maybe I'm mistaken here.