53 lines
1.0 KiB
Markdown
53 lines
1.0 KiB
Markdown
# Simple Metrics Generator
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Simple Prometheus metrics generator.
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## Usage
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```bash
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cat metadata | generate_metrics tempurature 50
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```
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with your metadata file looking something like
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```
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unit="F", computer="computer5"
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```
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---
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From here you could then redirect stdout into a file, then host the file with something like Caddy for Prometheus to scrape.
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## Examples
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A simple "down detector". Put this in a crontab (runs every minute):
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```bash
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* * * * * cat /etc/metrics_metadata | generate_metrics cloudflare $(ping -c 1 1.1.1.1 &> /dev/null ; echo $?) > /srv/metrics/cloudflare
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```
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---
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Actual down detector I'm using:
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```bash
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#!/bin/bash
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# Clear the file
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echo "" > /srv/metrics
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targets=("1.1.1.1" "192.168.1.1" "oliveratkinson.net")
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for i in "${targets[@]}"
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do
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export TARGET=$i
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envsubst < /root/metrics_metadata | /root/generate_metrics is_down $(ping -c 1 $TARGET &> /dev/null; echo $?) >> /srv/metrics
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done
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```
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```caddyfile
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:80 {
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handle /metrics {
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file_server /srv/metrics
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}
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}
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```
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