Pgbouncer exporter

Prometheus exporter for Pgbouncer metrics.

Collectors

All of the collectors are enabled by default, you can control that using environment variables by settings it to true or false.

Name	Description	Env var	Default
stats	Per database requests stats.	EXPORT_STATS	Enabled
pools	Per (database, user) connection stats.	EXPORT_POOLS	Enabled
databases	List of configured databases.	EXPORT_DATABASES	Enabled
lists	List of internal pgbouncer information.	EXPORT_LISTS	Enabled