You can invest more time up front and automate it with an IAC tool and and CI tool to build/deploy. Probably nothing will be as hands off as Heroku, but there are lots of measures that can get you closer.

It is more configuration, yes, but it's far less than say ec2 and nomad. We run a very light production load on it and in 6 months I've had to intervene once (to bump our limits because we spiked slightly more than I expected us to)