How to manage notifications for PostgreSQL cluster (Primary / Standby)

Hello Netdata gurus,

We’re currently evaluating Netdata to monitor a PostgreSQL cluster ( 1x Primary + 2x Active Standbys), and we are wondering if there’s a way to make the agents “cluster aware”? For example, we would like to have some collectors running only on the Primary node (which can change role at any time), and/or get some alert notifications only from one node (to avoid duplicated notifications for example).

Has anyone worked on a similar use case? Does Netdata have some native features to support this?

Ubuntu 20.04
PostgreSQL 13.15
netdata v1.45.0-615-nightly