"Serverless" means 1- pay for what you use. 2- No infra setup, ever. Dokku requires a server that you have to manage. It is not serverless. You should never hit a scaling wall.
Azure Functions are serverless to us, but for the team developing and deploying that feature they are not serverless.
Dokku provides a tool so that once you deploy projects they can be ‘serverless’.
1- That would throw out serverless with (free) unlimited use (A la PocketHost)
2- Then getting a third party to set up Dokku and then using that would qualify
(Because it'd be the same as getting AWS to setup their server abstraction)
The platform is serverless, you hosting it probably not, maybe server-light, as you setup the abstraction and use that for many apps
