https://github.com/manics/prometheus-metrics-combiner

https://github.com/manics/prometheus-metrics-combiner

Last synced: 12 days ago
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• Host: GitHub
• URL: https://github.com/manics/prometheus-metrics-combiner
• Owner: manics
• License: mit
• Created: 2025-10-22T19:43:45.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2025-10-26T13:39:04.000Z (8 months ago)
• Last Synced: 2025-10-26T15:31:36.552Z (8 months ago)
• Language: Go
• Size: 15.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
# Prometheus Metrics Combiner

[![Build](https://github.com/manics/prometheus-metrics-combiner/actions/workflows/build.yml/badge.svg)](https://github.com/manics/prometheus-metrics-combiner/actions/workflows/build.yml)

A simple HTTP server that fetches Prometheus metrics from multiple upstream services, combines them, and exposes them on a single `/metrics` endpoint.

For example, if you have a Kubernetes pod with multiple containers with separate metrics endpoints you can use this to expose a single endpoint for scraping.

## Building

This requires Go 1.25

```bash

go build

```

## Usage

The server is configured via command-line flags.

### Command-Line Flags

- `-port `: The port for the HTTP server to listen on (default `8080`)

- `-url `: An upstream URL to fetch metrics from, can be specified multiple times

- `-prefix `: Optional filter, only lines starting with this prefix will be included in the output, can be specified multiple times