First I create the dokku app with $ dokku apps:create app-name.

As long as there’s a git repository for the given project, all I gotta do is add the dokku remote according to my SSH config and push to the main branch.

$ git remote add dokku dokku@dokku-server:app-name

$ git push dokku main

Setting a subdomain

For now I’m deploying to a subdomain, so in Porkbun I’m adding an A Record with the Host as the app name and the Answer/Value equal to Mojave’s public IP Address.

SSL Certificate

To make the app accessible via HTTPS, first I set the e-mail associated with the registration:

dokku letsencrypt:set app-name email email@address.com

Next I enable LetsEncrypt on the app:

$ dokku letsencrypt:enable app-name

That’s it!

Setting a Regular Domain

I’m transferring an app from Heroku to my VPS but the process is the same. In Porkbun, I set the A Record to the Mojave IP Address. Then I set the CNAME Record to the desired domain.

Dokku Domain

On the Dokku side, I add a new domain with this command: $ dokku domains:add app-name domain.com

HTTPS

Lastly, I run $ dokku letsencrypt:enable app-name and that’s it!

That’s one production app migrated from Heroku to my VPS :-)