Collection of self-managed PostgreSQL metrics

These settings are for the self-managed postgres deployments.

For the collector to scrape data from postgres, it requires a few things. Before continuing, complete the instructions in the Datadog documentation section on Setting Up Database Monitoring for self-hosted PostgreSQL.

1. The PostgreSQL instance must be annotated:

postgresql:
     primary:
       podAnnotations:
         ad.datadoghq.com/postgresql.check_names: '[