Introduced in GitLab 9.4
GitLab has support for automatically detecting and monitoring HAProxy. This is provided by leveraging the HAProxy Exporter, which translates HAProxy statistics into a Prometheus readable form.
The Prometheus service must be enabled.
|HTTP Error Rate (%)||
Configuring Prometheus to monitor for HAProxy metrics
To get started with NGINX monitoring, you should install and configure the HAProxy exporter which parses these statistics and translates them into a Prometheus monitoring endpoint.
Specifying the Environment label
In order to isolate and only display relevant metrics for a given environment
however, GitLab needs a method to detect which labels are associated. To do this, GitLab will look for an