Dokku
Dokku is mini-Heroku on your VPS. Git push to deploy with buildpacks, automatic SSL via Let's Encrypt, and a 200+ plugin ecosystem covering Postgres, Redis, MySQL, MongoDB, and Elasticsearch. The smallest PaaS that fits in a 1 GB VPS.
At a glance
Version 0.36.0 OS Ubuntu Server 24.04 LTS, Ubuntu Server 22.04 LTS Min RAM 1 GB IP IPV4
Active installs is sample data (staging preview); real metric wires in before launch.