Save Lighthouse reports to Prometheus

Run one or more sites through Google's Lighthouse and send the scores to the Prometheus pushgateway.

These values are collected from an off-site network to measure production CDN behaviour as our users see it:

http://prometheus.loctest.gov/grafana/dashboard/db/lighthouse-web-metrics

Quickstart

$ pipenv run ./lighthouse-to-prometheus.py --chrome-flags="--proxy-server=socks5://localhost:1080" https://www.loc.gov https://www.wdl.org https://chroniclingamerica.loc.gov https://congress.gov https://blogs.loc.gov
Launching lighthouse for https://www.loc.gov…
Launching lighthouse for https://www.wdl.org…
Launching lighthouse for https://chroniclingamerica.loc.gov…
Launching lighthouse for https://congress.gov…
Pushed 112 results to http://prometheus:9091/metrics/job/lighthouse: ('total_time', (('instance', 'https://www.loc.gov/'),), 29605)…

Installation

1. npm install -g lighthouse
2. pipenv install