Matomo needs a database server (MySQL) and a way to execute cronjobs - that’s about it. There’s some gotchas if you’re running in a HA setup or if the database runs on a separate server.

I have a full deployment of Matomo in Kubernetes on gitlab [1] if anyone would find it useful (includes correct settings for running in multiple pods).

1: https://gitlab.com/pcgamingwiki/webanalytics/-/tree/master/