docker-google-lighthouse's Introduction

Google Lighthouse - Docker Image

Lighthouse analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices.

This image is greatly inspired from Justin RIBEIRO's work

Usage

docker run --rm --name lighthouse -it -v /path/to/your/report:/home/chrome/reports --cap-add=SYS_ADMIN femtopixel/google-lighthouse <your_site_url> <optional_args>

With <you_site_url> url to your site (e.g. http://www.google.com). You can pass args AFTER the url if you want to.

For example, you can export as json with this command:

docker run --rm --name lighthouse -it -v /path/to/your/report:/home/chrome/reports --cap-add=SYS_ADMIN femtopixel/google-lighthouse http://www.google.com --output json

Usage : Improved

Using the ever-awesome Jessie Frazelle SECCOMP profile for Chrome, we don't have to use the hammer that is SYS_ADMIN:

wget https://raw.githubusercontent.com/jfrazelle/dotfiles/master/etc/docker/seccomp/chrome.json -O ~/chrome.json
docker run --rm --name lighthouse -it -v /path/to/your/report:/home/chrome/reports --security-opt seccomp=$HOME/chrome.json femtopixel/google-lighthouse <your_site_url>

FAQ

Error while writing files

Runtime error encountered: { Error: EACCES: permission denied, open '/home/chrome/reports/myawesome_site_admin_heavypage.report.json'
errno: -13,
code: 'EACCES',
syscall: 'open',
path: '/home/chrome/reports/myawesome_site_admin_heavypage.report.json' }

Make sure your folder has the write right for others (chmod o+w)

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