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Update nginx_exporter to 1.3.0
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Prometheus Updater committed Jul 28, 2024
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117 changes: 101 additions & 16 deletions exporters/nginx/README.md
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NGINX Prometheus exporter makes it possible to monitor NGINX or NGINX Plus using Prometheus.

<!-- START doctoc generated TOC please keep comment here to allow auto update -->
<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
## Table of Contents

- [Overview](#overview)
- [Getting Started](#getting-started)
- [A Note about NGINX Ingress Controller](#a-note-about-nginx-ingress-controller)
- [Prerequisites](#prerequisites)
- [Running the Exporter in a Docker Container](#running-the-exporter-in-a-docker-container)
- [Running the Exporter Binary](#running-the-exporter-binary)
- [Usage](#usage)
- [Command-line Arguments](#command-line-arguments)
- [Exported Metrics](#exported-metrics)
- [Common metrics](#common-metrics)
- [Metrics for NGINX OSS](#metrics-for-nginx-oss)
- [Stub status metrics](#stub-status-metrics)
- [Metrics for NGINX Plus](#metrics-for-nginx-plus)
- [Connections](#connections)
- [HTTP](#http)
- [SSL](#ssl)
- [HTTP Server Zones](#http-server-zones)
- [Stream Server Zones](#stream-server-zones)
- [HTTP Upstreams](#http-upstreams)
- [Stream Upstreams](#stream-upstreams)
- [Stream Zone Sync](#stream-zone-sync)
- [Location Zones](#location-zones)
- [Resolver](#resolver)
- [HTTP Requests Rate Limiting](#http-requests-rate-limiting)
- [HTTP Connections Limiting](#http-connections-limiting)
- [Stream Connections Limiting](#stream-connections-limiting)
- [Cache](#cache)
- [Worker](#worker)
- [Troubleshooting](#troubleshooting)
- [Releases](#releases)
- [Docker images](#docker-images)
- [Binaries](#binaries)
- [Homebrew](#homebrew)
- [Snap](#snap)
- [Scoop](#scoop)
- [Nix](#nix)
- [Building the Exporter](#building-the-exporter)
- [Building the Docker Image](#building-the-docker-image)
- [Building the Binary](#building-the-binary)
- [Grafana Dashboard](#grafana-dashboard)
- [SBOM (Software Bill of Materials)](#sbom-software-bill-of-materials)
- [Binaries](#binaries-1)
- [Docker Image](#docker-image)
- [Provenance](#provenance)
- [Contacts](#contacts)
- [Contributing](#contributing)
- [Support](#support)
- [License](#license)

<!-- END doctoc generated TOC please keep comment here to allow auto update -->

## Overview

[NGINX](https://nginx.org) exposes a handful of metrics via the [stub_status
page](https://nginx.org/en/docs/http/ngx_http_stub_status_module.html#stub_status). [NGINX
Plus](https://www.nginx.com/products/nginx/) provides a richer set of metrics via the
[API](https://nginx.org/en/docs/http/ngx_http_api_module.html) and the [monitoring
dashboard](https://www.nginx.com/products/nginx/live-activity-monitoring/). NGINX Prometheus exporter fetches the
metrics from a single NGINX or NGINX Plus, converts the metrics into appropriate Prometheus metrics types and finally
exposes them via an HTTP server to be collected by [Prometheus](https://prometheus.io/).
dashboard](https://docs.nginx.com/nginx/admin-guide/monitoring/live-activity-monitoring/). NGINX Prometheus exporter
fetches the metrics from a single NGINX or NGINX Plus, converts the metrics into appropriate Prometheus metrics types
and finally exposes them via an HTTP server to be collected by [Prometheus](https://prometheus.io/).

## Getting Started

Expand Down Expand Up @@ -58,15 +113,15 @@ To start the exporter we use the [docker run](https://docs.docker.com/engine/ref
- To export NGINX metrics, run:

```console
docker run -p 9113:9113 nginx/nginx-prometheus-exporter:1.1.0 --nginx.scrape-uri=http://<nginx>:8080/stub_status
docker run -p 9113:9113 nginx/nginx-prometheus-exporter:1.3.0 --nginx.scrape-uri=http://<nginx>:8080/stub_status
```

where `<nginx>` is the IP address/DNS name, through which NGINX is available.

- To export NGINX Plus metrics, run:

```console
docker run -p 9113:9113 nginx/nginx-prometheus-exporter:1.1.0 --nginx.plus --nginx.scrape-uri=http://<nginx-plus>:8080/api
docker run -p 9113:9113 nginx/nginx-prometheus-exporter:1.3.0 --nginx.plus --nginx.scrape-uri=http://<nginx-plus>:8080/api
```

where `<nginx-plus>` is the IP address/DNS name, through which NGINX Plus is available.
Expand Down Expand Up @@ -247,7 +302,7 @@ Flags:
| `nginxplus_upstream_server_ssl_handshakes` | Counter | Successful SSL handshakes | `server`, `upstream` |
| `nginxplus_upstream_server_ssl_handshakes_failed` | Counter | Failed SSL handshakes | `server`, `upstream` |
| `nginxplus_upstream_server_ssl_session_reuses` | Counter | Session reuses during SSL handshake | `server`, `upstream` |
| `nginxplus_upstream_keepalives` | Gauge | Idle keepalive connections | `upstream` |
| `nginxplus_upstream_keepalive` | Gauge | Idle keepalive connections | `upstream` |
| `nginxplus_upstream_zombies` | Gauge | Servers removed from the group but still processing active client requests | `upstream` |

#### [Stream Upstreams](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_stream_upstream)
Expand Down Expand Up @@ -341,7 +396,7 @@ Flags:
| `nginxplus_stream_limit_connection_rejected` | Counter | Total number of connections that were rejected | `zone` |
| `nginxplus_stream_limit_connection_rejected_dry_run` | Counter | Total number of connections accounted as rejected in the dry run mode | `zone` |

#### [Cache](https://nginx.org/en/docs/http/ngx_http_api_module.html#http_caches_http_cache_zone_name)
#### [Cache](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_http_cache)

| Name | Type | Description | Labels |
| ------------------------------------------- | ------- | ----------------------------------------------------------------------- | ------- |
Expand All @@ -367,16 +422,16 @@ Flags:
| `nginxplus_cache_bypass_responses_written` | Counter | Total number of cache bypasses written to cache | `cache` |
| `nginxplus_cache_bypass_bytes_written` | Counter | Total number of bytes written to cache from cache bypasses | `cache` |

#### [Worker](hhttps://nginx.org/en/docs/http/ngx_http_api_module.html#workers)
#### [Worker](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_worker)

| Name | Type | Description | Labels |
| ---------------------------------------- | ------- | ---------------------------------------------------------------------------------------------- | ----------- |
| `nginxplus_worker_connection_accepted` | Counter | The total number of accepted client connections | `id`, `pid` |
| `nginxplus_worker_connection_dropped` | Counter | The total number of accepted client connections | `id`, `pid` |
| `nginxplus_worker_connection_active` | Gauge | The current number of active client connections | `id`, `pid` |
| `nginxplus_worker_connection_idle` | Gauge | The current number of idle client connection | `id`, `pid` |
| `nginxplus_worker_http_requests_total` | Counter | The total number of client requests received by the worker process | `id`, `pid` |
| `nginxplus_worker_http_requests_current` | Gauge | The current number of client requests that are currently being processed by the worker process | `id`, `pid` |
| Name | Type | Description | Labels |
| ---------------------------------------- | ------- | ------------------------------------------------------------------------ | ----------- |
| `nginxplus_worker_connection_accepted` | Counter | The total number of accepted client connections | `id`, `pid` |
| `nginxplus_worker_connection_dropped` | Counter | The total number of dropped client connections | `id`, `pid` |
| `nginxplus_worker_connection_active` | Gauge | The current number of active client connections | `id`, `pid` |
| `nginxplus_worker_connection_idle` | Gauge | The current number of idle client connection | `id`, `pid` |
| `nginxplus_worker_http_requests_total` | Counter | The total number of client requests received | `id`, `pid` |
| `nginxplus_worker_http_requests_current` | Gauge | The current number of client requests that are currently being processed | `id`, `pid` |

Connect to the `/metrics` page of the running exporter to see the complete list of metrics along with their
descriptions. Note: to see server zones related metrics you must configure [status
Expand Down Expand Up @@ -427,6 +482,36 @@ You can install the NGINX Prometheus Exporter from the [Snap Store](https://snap
snap install nginx-prometheus-exporter
```

### Scoop

You can add the NGINX Scoop bucket with

```console
scoop bucket add nginx https://github.com/nginxinc/scoop-bucket.git
```

and then install the package with

```console
scoop install nginx-prometheus-exporter
```

### Nix

First include NUR in your packageOverrides as explained in the [NUR documentation](https://github.com/nix-community/NUR#installation).

Then you can use the exporter with the following command:

```console
nix-shell --packages nur.repos.nginx.nginx-prometheus-exporter
```

or install it with:

```console
nix-env -f '<nixpkgs>' -iA nur.repos.nginx.nginx-prometheus-exporter
```

## Building the Exporter

You can build the exporter using the provided Makefile. Before building the exporter, make sure the following software
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2 changes: 1 addition & 1 deletion exporters/nginx/metadata.yml
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---
repository: nginxinc/nginx-prometheus-exporter
version: 1.2.0
version: 1.3.0
build: make nginx-prometheus-exporter
executable: nginx-prometheus-exporter
files:
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