Comment 2 for bug 1789426

I think having MAAS regions know which rack controller to use based on power management tools is the wrong approach. We should require the same power management tools across all rack controllers. If we allow divergence we're asking for confusion and a debugging nightmare down the road. Even if MAAS is smart enough to just use the right one - what happens when that rack controller dies and now the remaining one can't do its job because we didn't enforce consistency?

I think at the very least we should continue surfacing warnings about power management tools missing and surface the controllers to which it applies.