Adapt to current private pillar top:
- match ID grain for inclusion of ID files
- check for role existence
Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
This is an attempt to remove the need for the custom nbroles module. If
it works out, the localhost reference should be replaced with a global
roles API endpoint.
Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>