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1 files changed, 2 insertions, 4 deletions
diff --git a/doc/user/project/integrations/prometheus_library/metrics.md b/doc/user/project/integrations/prometheus_library/metrics.md
index 6bdffce9c55..f09ecf9ff2d 100644
--- a/doc/user/project/integrations/prometheus_library/metrics.md
+++ b/doc/user/project/integrations/prometheus_library/metrics.md
@@ -4,6 +4,7 @@
GitLab offers automatic detection of select [Prometheus exporters](https://prometheus.io/docs/instrumenting/exporters/). Currently supported exporters are:
* [Kubernetes](kubernetes.md)
* [NGINX](nginx.md)
+* [NGINX Ingress Controller](nginx_ingress.md)
* [HAProxy](haproxy.md)
* [Amazon Cloud Watch](cloudwatch.md)
@@ -14,10 +15,7 @@ We have tried to surface the most important metrics for each exporter, and will
GitLab retrieves performance data from the configured Prometheus server, and attempts to identifying the presence of known metrics. Once identified, GitLab then needs to be able to map the data to a particular environment.
In order to isolate and only display relevant metrics for a given environment, GitLab needs a method to detect which labels are associated. To do that,
-GitLab will look for the required metrics which have a label that
-matches the [$CI_ENVIRONMENT_SLUG][ci-environment-slug].
-
-For example if you are deploying to an environment named `production`, there must be a label for the metric with the value of `production`.
+GitLab uses the defined queries and fills in the environment specific variables. Typically this involves looking for the [$CI_ENVIRONMENT_SLUG](https://docs.gitlab.com/ee/ci/variables/#predefined-variables-environment-variables), but may also include other information such as the project's Kubernetes namespace. Each search query is defined in the [exporter specific documentation](#prometheus-metrics-library).
## Adding to the library