Note: Available since Omnibus GitLab 8.17. For installations from source you'll have to install and configure it yourself.
The postgres exporter allows you to measure various PostgreSQL metrics.
To enable the postgres exporter:
Add or find and uncomment the following line, making sure it's set to
postgres_exporter['enable'] = true
Save the file and reconfigure GitLab for the changes to take effect
Prometheus will now automatically begin collecting performance data from
the postgres exporter exposed under