Want to start recording data on InfluxDB@DSM NAS - how do I start?

I’m a newbie and fails with what ios most likely basic stuff but I really need some help to get in the right direction.

Today I run Home Assistent on a RPi4 and records data in a MariaDB on a DSM NAS.

I would like to start recording data in InfluxDB on my DSM NAS. Later I would like to start using Grafana to create dashboards.
I have searched for and found a few guides that says they do what I want but I fail so far.

Are there anyone here that have

  • Installed InfluxDB as a Docker container on a DSM NAS
  • Prepared the InfluxDB for Home Assistant
  • Configured Home Assistant to start recording data on InfluxDB

Are there any guides that someone can point me too?

Regards,
Niklas