GitLab exporter

Available since Omnibus GitLab 8.17.

Renamed from GitLab monitor exporter to GitLab exporter in GitLab 12.3.

The GitLab exporter allows you to measure various GitLab metrics, pulled from Redis and the database, in Omnibus GitLab instances.

NOTE: Note: For installations from source you'll have to install and configure it yourself.

To enable the GitLab exporter in an Omnibus GitLab instance:

Enable Prometheus
Edit /etc/gitlab/gitlab.rb
Add or find and uncomment the following line, making sure it's set to true:
```
gitlab_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 GitLab exporter exposed under localhost:9168.