Production deployment - do you run it in docker or in the VM system directly?

Just curious, how do people run keycloak in an internet facing production system? On the VM system or inside a container (docker)? And do you use a cluster?

Thanks

I run keycloak on a Raspberrypi4, directly on bare metal; no VM’s, and no docker. Granted, i don’t have high load.

In Kubernetes。。。。。。。。。