- Requirements
- Metrics supported
- Configuring Prometheus to monitor for HAProxy metrics
- Specifying the Environment label
Monitoring HAProxy (DEPRECATED)
Deprecated in GitLab 14.7.
This feature is in its end-of-life process. It is deprecated
in GitLab 14.7, and is planned for removal in GitLab 16.0.
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.
Requirements
The Prometheus service must be enabled.
Metrics supported
| Name | Query |
|---|---|
| Throughput (req/sec) | sum(rate(haproxy_frontend_http_requests_total{%{environment_filter}}[2m])) by (code)
|
| HTTP Error Rate (%) | sum(rate(haproxy_frontend_http_requests_total{code="5xx",%{environment_filter}}[2m])) / sum(rate(haproxy_frontend_http_requests_total{%{environment_filter}}[2m]))
|
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 looks for an environment label.