Here also docker-compose. Easy to separate tenants using same stack (nginx+django+postgres+minio).

Question though: how do you manage the possible rebooting-containers-loop after a host reboot? I had to throw in more memory to prevent this but it feels like a (expensive|unnecessary) workaround. Anyone figured out how to let multiple containers start after each other (while not in 1 docker-compose.yaml)?

docker-compose is typically not recommended for production, and if you do end up using it - do check out the production guide - https://docs.docker.com/compose/production/