Yeah, that’s pretty much how you do it for strapi as well. Just put the databse creds in the .env en voilla.
If you’re looking to deploy using Dokku specifically I’ve wrote an article about that:
https://www.pluginpal.io/easy-strapi-deployment-on-a-vps-with-dokku
And if you’re looking to deploy to that Dokku server using Github Action deployments I’ve also go another article about that 
https://www.pluginpal.io/strapi-ci-with-dokku-and-github-actions