I'm a heavy dokku user and I would love the same thing. Just simple replication to another machine in case of failure. A load balancer in front of them would be

I'm a heavy dokku user and I would love the same thing. Just simple replication to another machine in case of failure. A load balancer in front of them would be great for HA but I'd settle for manual fail-over as long as real-time data replication was as simple as dokku makes everything else.