I have run multiple datacenter automation teams. Essentially providing the plumbing for provisioning bare metal.

We looked at open stack several times and never had a team large enough to justify trying to run it. It’s just way too complex and requires too many machines to get the full stack running. We could manage 5k plus machines with just 5 relatively small hosts and keeping the stack extremely simple.

Now you are going to say that we don’t provide the same features and that is true but the few cases where it would have been nice didn’t justify it.

I can write a datacenter automation system from scratch that i know won’t be causing me alerts at night faster than I can get a resilient openstack setup running. Unless that changed why would I use it.