Use a chromeless image to add lighthouse

Dockerfile

@@ -1,25 +1,23 @@
-FROM bitnami/minideb
+FROM femtopixel/google-chrome-headless
 
 MAINTAINER Jay MOULIN <[email protected]> <http://twitter.com/moulinjay>
 
+USER root
+
 # 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 && \
+  apt-get update && apt-get install -y 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