Google Lighthouse Docker image

Author: jaymoulin

Dockerfile

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+FROM bitnami/minideb
+
+ENV CHROME_PORT=9222
+
+# Install deps + add Chrome Stable + purge all the things
+RUN apt-get update && apt-get install -y apt-transport-https ca-certificates curl gnupg --no-install-recommends && \
+  curl -sSL https://deb.nodesource.com/setup_9.x | bash -  && \
+  curl -sSL https://dl.google.com/linux/linux_signing_key.pub | apt-key add -  && \
+  echo "deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list  && \
+  apt-get update && apt-get install -y google-chrome-stable nodejs --no-install-recommends && \
+  npm --global install yarn && \
+  apt-get purge --auto-remove -y curl gnupg && \
+  rm -rf /var/lib/apt/lists/* && \
+  yarn global add lighthouse && \
+  groupadd -r chrome && useradd -r -g chrome -G audio,video chrome && \
+  mkdir -p /home/chrome/reports && chown -R chrome:chrome /home/chrome
+
+# some place we can mount and view lighthouse reports
+VOLUME /home/chrome/reports
+WORKDIR /home/chrome/reports
+
+
+COPY entrypoint.sh /usr/bin/entrypoint
+
+# Run Chrome non-privileged
+USER chrome
+
+VOLUME /home/chrome/reports
+
+# Drop to cli
+ENTRYPOINT ["entrypoint"]

README.md

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+Google Lighthouse - Docker Image
+================================
+
+[![Docker Pulls](https://img.shields.io/docker/pulls/femtopixel/google-lighthouse.svg)](https://hub.docker.com/r/femtopixel/google-lighthouse/)
+
+[Lighthouse](https://developers.google.com/web/tools/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](https://github.com/justinribeiro/dockerfiles/tree/master/lighthouse)
+
+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
+```
+
+Further reading on [Google Lighthouse](https://github.com/GoogleChrome/lighthouse#using-programmatically)
+
+Usage : Improved
+----------------
+
+Using the ever-awesome [Jessie Frazelle](https://twitter.com/jessfraz) 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>
+```

entrypoint.sh

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+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#http}" != "$1" ]; then
+    set -- lighthouse --chrome-flags="--headless --disable-gpu" "$@"
+fi
+
+exec "$@"