# Prometheus Metrics library
> 原文：[https://docs.gitlab.com/ee/user/project/integrations/prometheus_library/](https://docs.gitlab.com/ee/user/project/integrations/prometheus_library/)
* [Exporters](#exporters)
* [Identifying Environments](#identifying-environments)
# Prometheus Metrics library[](#prometheus-metrics-library "Permalink")
在 GitLab 9.0 中[引入](https://gitlab.com/gitlab-org/gitlab-foss/-/merge_requests/8935) .
GitLab 可自動檢測某些[Prometheus 出口商](https://s0prometheus0io.icopy.site/docs/instrumenting/exporters/) .
## Exporters[](#exporters "Permalink")
當前支持的出口商是：
* [Kubernetes](kubernetes.html)
* [NGINX](nginx.html)
* [NGINX Ingress Controller 0.9.0-0.15.x](nginx_ingress_vts.html)
* [NGINX Ingress Controller 0.16.0+](nginx_ingress.html)
* [HAProxy](haproxy.html)
* [Amazon Cloud Watch](cloudwatch.html)
我們已嘗試為每個出口商展示最重要的指標，并將在以后的版本中繼續增加對其他出口商的支持. 如果您想增加對其他官方出口商的支持，歡迎捐款.
## Identifying Environments[](#identifying-environments "Permalink")
GitLab 從已配置的 Prometheus 服務器檢索性能數據，并嘗試識別已知指標的存在. 一旦確定，GitLab 然后需要能夠將數據映射到特定環境.
為了隔離并僅顯示給定環境的相關指標，GitLab 需要一種方法來檢測關聯了哪些標簽. 為此，GitLab 使用已定義的查詢并填寫特定于環境的變量. 通常，這涉及尋找[`$CI_ENVIRONMENT_SLUG`](../../../../ci/variables/README.html#predefined-environment-variables) ，但也可能包括其他信息，例如項目的 Kubernetes 命名空間. 每個搜索查詢都在[導出器特定的文檔中](#exporters)定義.
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