Extending PMM’s Prometheus Configuration

Percona Monitoring and Management 2.4.0 (PMM), released several days ago, added support for custom extensions of the Prometheus configuration file. Before explaining what that is and how to use it, let me tell you a bit of history.
PMM 1.4.0, released 2.5 years ago, added support for hooking external Prometheus exporters into PMM’s Prometheus configuration […]