init

README.md

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+# CyberPower Exporter
+
+Export UPS data via HTTP for prometheus service
+
+## Setup
+
+### Prerequisites
+
+- [Bun](https://bun.sh)
+
+### Instructions
+
+1. Download the [PowerPanel](https://cyberpower.com/global/en/product/sku/powerpanel_for_linux#downloads)
+2. Install the package: `sudo dpkg -i powerpanel.deb`
+3. Install the service: 
+4. Start service automatically: `sudo systemctl enable power-exporter && sudo systemctl start power-exporter`

install.sh

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+#!/bin/bash
+
+if [ "$UID" != "0"  ]; then
+	echo "Please run as root"
+	exit 1
+fi
+
+# Install UPS driver
+if [ -z "$(which pwrstat)" ]; then
+	echo "Installing Power Panel..."
+	dpkg -i powerpanel.deb
+fi
+
+# Setup exporter
+echo "Installing Exporter..."
+cp power-exporter.js /usr/local/bin/power-exporter.js
+chmod +x /usr/local/bin/power-exporter.js
+
+# Setup service
+echo "Stting Up Service..."
+cp power-exporter.service /etc/systemd/system/power-exporter.service
+chmod +x /etc/systemd/system/power-exporter.service
+systemctl enable power-exporter
+systemctl restart power-exporter
+
+echo "Done!"
+sleep 1
+echo ""
+journalctl -u power-exporter -n 1

power-exporter.js

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+import { $ } from 'bun';
+import http from 'http';
+
+const port = 3000;
+
+async function scrape() {
+	const data = await $`pwrstat -status`.text();
+	const r = /^\s*(.+?)\.{3,} (.+)$/gm;
+
+	let found, map = {};
+	while(!!(found = r.exec(data)))
+		map[found[1]] = found[2];
+
+	return {
+		model: map["Model Name"],
+		vendor: map["Power Supply by"],
+		state: map["State"],
+		charge: Number(/\d+/g.exec(map["Battery Capacity"])[0]) / 100,
+		remaining: map["Remaining Runtime"],
+		rated_voltage: Number(/\d+/g.exec(map["Rating Voltage"])[0]),
+		rated_wattage: Number(/\d+/g.exec(map["Rating Power"])[0]),
+		input_voltage: Number(/\d+/g.exec(map["Utility Voltage"])[0]),
+		output_voltage: Number(/\d+/g.exec(map["Output Voltage"])[0]),
+		load_wattage: Number(/\d+/g.exec(map["Load"])[0]),
+		load_percentage: Number(/(\d+) %/g.exec(map["Load"])[1]) / 100,
+		last_test: map["Test Result"],
+		last_outage: map["Last Power Event"],
+	};
+}
+
+function format(a) {
+	return Object.entries(a).map(([key, value]) => `${key} ${typeof value == 'string' ? `"${value}"` : value}`).join('\n');
+}
+
+http.createServer(async (req, res) => {
+	res.end(format(await scrape()));
+}).listen(port, () => {
+	console.log(`Exporter running on http://localhost:${port}`)
+});

power-exporter.service

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+[Unit]
+Description=Export UPS metrics to webpage for scraping
+After=network.target
+
+[Service]
+ExecStart=/root/.bun/bin/bun /usr/local/bin/power-exporter.js
+Restart=always
+
+[Install]
+WantedBy=multi-user.target