[Zaheer]

Not exactly sure what you mean by its meant for just 1 service? Do you mean just one box? I run multiple services/apps on my dokku instance

[mateuszf]

He means multiple instances - for scaling horizontally when traffic increases.

[showkhill]

http://progrium.viewdocs.io/dokku/process-management

[dalyons]

That's still all on one machine; Dokku can't automatically schedule & distribute containers/processes across a cluster of hosts like Empire & others can. If you're doing anything non trivial you're going to outgrow one machine pretty soon :)

[hackerboos]

If your app is 12-factor, why can't you just spin up more instances of your app on Dokku?