justinribeiro/lighthouse repository overview

⁠Lighthouse in a container

Lighthouse⁠ analyzes web apps and web pages, collecting modern performance metrics and insights on developer best practices. This container allows you to use lighthouse in conjunction with the --headless option of Chrome M59+.

⁠How to Use

⁠Step 1: Run the container

docker run -itv ~/your-local-dir:/home/chrome/reports --cap-add=SYS_ADMIN justinribeiro/lighthouse

⁠Step 1 Improved: A better way with SECCOMP

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 -itv ~/your-local-dir:/home/chrome/reports --security-opt seccomp=$HOME/chrome.json justinribeiro/lighthouse

⁠Step 2: Run Lighthouse with --chrome-flags

Once you're in the container, using the --chrome-flags option available in lighthouse, we can automatically start Chrome in headless mode within the container light so:

lighthouse --chrome-flags="--headless --disable-gpu" https://justinribeiro.com

⁠I just want to run Chrome headless on 9222 within a container!

Use my other chrome-headless container⁠ for that.