Dashboard that autodetects new hosts/nodes

Hi everyone,

I’m trying to create something similar to Percona Monitoring and Management dashboard. In PMM you create a server and clients join via a simple join command and you can see the new hosts being added to the dashboard to show metric. Example link: https://pmmdemo.percona.com/graph/d/pmm-home/home-dashboard?orgId=1&refresh=1m
I’m trying all sorts of things on my grafana/prometheus/alert-manager stack in docker to make something like this but couldn’t achieve it yet. Can you provide some insights on this?
Thanks in advance.

I don’t understand this. Please share some screenshots? PMM is what? the link you shared looks like either some version of Grafana OSS or a fork of some version of Grafana OSS