I started using Dokku in production a few years ago. It tries to provide an open source alternative to Heroku and ia compatible with their buildpacks. Deploymen

I started using Dokku in production a few years ago. It tries to provide an open source alternative to Heroku and ia compatible with their buildpacks. Deployments work via git pushes. And there is a large number of plugins available for different services like Redis, a plethora of databases, letsencrypt e.t.c. You can host it on any compatible server.