It's not just about pretty output, it's also about code in the cookbooks: all the ```notifies``` bit will need to be updated, and the more complex we make the scheme, the more likely we'll break it (I think we need a helper, tbh ;-)).

Re "If they're installed on the same cluster you could still limit it to one keystone per node": but then you're not using the cluster at all, so there will be no conflict caused by pacemaker primitives ;-)