Ask HN: Which Container Orchestrator are you using?

The title says it all.

I am interested in which Container Orchestrator you are using and on what platform.

For example, I have seen a lot of buzz around Hashicorp Nomad - I'd like to hear about real "war-stories" as I mostly ever see cookie cutter tutorials online.

To the k8s folk - Are you really using selfhosted Kubernetes? I see a lot of people recommending k8s but have the feeling that a lot of people (rightfully) use managed Kubernetes to avoid the headaches.

Are you still on Docker Swarm? What made you stick with it? Simplicity? What are the biggest pain points you are facing?

Also, I am interested in whether you are doing this on bare metal, managed hardware, cloud vms, etc.

Submitting this as an Ask HN, because I don't have the Karma yet to create a poll.