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diff --git a/doc/user/project/integrations/prometheus_library/haproxy.md b/doc/user/project/integrations/prometheus_library/haproxy.md new file mode 100644 index 00000000000..f2939f047a3 --- /dev/null +++ b/doc/user/project/integrations/prometheus_library/haproxy.md @@ -0,0 +1,20 @@ +# Monitoring HAProxy +> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/12621) in GitLab 9.4 + +GitLab has support for automatically detecting and monitoring HAProxy. This is provided by leveraging the [HAProxy Exporter](https://github.com/prometheus/haproxy_exporter), which translates HAProxy statistics into a Prometheus readable form. + +## Metrics supported + +| Name | Query | +| ---- | ----- | +| Throughput (req/sec) | sum(rate(haproxy_frontend_http_requests_total{%{environment_filter}}[2m])) | +| 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](https://github.com/prometheus/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 `environment` label](metrics.md#identifying-environments). |