Dockerfile for Google Lighthouse

Dockerfile

# syntax=docker/dockerfile:1
FROM debian:bullseye

ENV DEBIAN_FRONTEND noninteractive

# ==============================================================================
# Main dependencies

RUN apt-get update -qq \
  && apt-get install -y \
  bzip2 \
  curl \
  wget \
  x11-utils \
  x11-xserver-utils \
  xvfb \
  xz-utils \
  && apt-get clean -y && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/*

# install cron, chromium and chromedriver without recommended extras
RUN apt-get update -qq \
  && apt-get install -y --no-install-recommends \
  cron \
  chromium \
  chromium-driver \
  && apt-get clean -y && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/*

# install node.js
RUN curl -sL https://deb.nodesource.com/setup_18.x | bash - \
  && apt-get install -qq -y nodejs \
  && apt-get clean -y && apt-get autoremove -y \
  && rm -rf /var/lib/apt/lists/* \
  && npm cache clean --force

# lighthouse
RUN npm install -g lighthouse

# add user
RUN addgroup --system --gid 1001 tester
RUN adduser --system --uid 1001 tester --shell /bin/bash

USER tester

WORKDIR /home/tester/

run.sh

lighthouse \
  --only-categories=performance \
  --output=json \
  --output-path="/home/tester/report-$(date +%Y-%m-%dT%H:%M:%S).json" \
  --chrome-flags="--headless --disable-gpu --no-sandbox --disable-setuid-sandbox --disable-dev-shm-usage --disable-notifications --autoplay-policy=no-user-gesture-required --enable-benchmarking --enable-net-benchmarking --disable-features=Translate --disable-background-networking --disable-client-side-phishing-detection --disable-sync --no-default-browser-check --no-first-run --disable-ipc-flooding-protection --password-store=basic --use-mock-keychain" \
  --no-enable-error-reporting \
  https://google.com