Example of using Xvfb, Selenium, Firefox ESR on `baseimage-amzn`

Dockerfile

# Example of using Xvfb, Selenium, Firefox ESR on `baseimage-amzn`
#
# Build and run Docker container
#
# ```
# $ docker build -t xvfb-firefox-esr-selenium-webdriver .
# $ docker run --rm \
#     -v /tmp:/tmp -v /dev/shm:/dev/shm \
#     --privileged -ti xvfb-firefox-esr-selenium-webdriver /sbin/my_init -- /bin/bash -l
# ```
#
# Once inside the Docker container, create `/root/google.rb` using `vi`
#
# ```
# [root@e609592f773e] / # cd /root
# [root@e609592f773e] /root # vi google.rb
# ```
#
# Following is the contents of `/root/google.rb`
#
# ```
# require 'headless'
# require 'selenium-webdriver'
#
# Selenium::WebDriver::Firefox::Binary.path='/usr/local/firefox/firefox'
#
# headless = Headless.new
# headless.start
#
# browser = Selenium::WebDriver.for :firefox
# browser.navigate.to "https://google.com"
# browser.save_screenshot("/tmp/google.png")
#
# browser.quit
# headless.destroy
# ```
#
# After creating `/root/google.rb` you can run Selenium and Firefox using Xvfb
#
# ```
# [root@e609592f773e] /root # ruby2.3 google.rb
# [root@e609592f773e] /root # ls /tmp/
# google.png
# ```
#
# That's it!
#
# You can learn more about Selenium Ruby Bindings at,
#
# http://redgreenrepeat.com/2016/07/29/selenium-ruby/
# https://github.com/SeleniumHQ/selenium/wiki/Ruby-Bindings
#
FROM lambdalinux/baseimage-amzn:2017.03-001

CMD ["/sbin/my_init"]

RUN \
  mkdir /tmp/docker-build && \
  # yum
  yum update && \
  \
  yum install alsa-lib && \
  yum install bzip2 && \
  yum install gcc48 && \
  yum install liberation-mono-fonts && \
  yum install liberation-sans-fonts && \
  yum install liberation-serif-fonts && \
  yum install ruby23 && \
  yum install ruby23-devel && \
  yum install vim-minimal && \
  # setup epll repository
  curl -X GET -o /tmp/docker-build/RPM-GPG-KEY-lambda-epll https://lambda-linux.io/RPM-GPG-KEY-lambda-epll && \
  rpm --import /tmp/docker-build/RPM-GPG-KEY-lambda-epll && \
  curl -X GET -o /tmp/docker-build/epll-release-2017.03-1.2.ll1.noarch.rpm https://lambda-linux.io/epll-release-2017.03-1.2.ll1.noarch.rpm && \
  yum install /tmp/docker-build/epll-release-2017.03-1.2.ll1.noarch.rpm && \
  yum --enablerepo=epll install firefox-compat && \
  \
  # install firefox esr
  pushd /tmp/docker-build && \
  curl -L "https://download.mozilla.org/?product=firefox-45.9.0esr-SSL&os=linux64&lang=en-US" > firefox-esr.tar.bz2 && \
  tar jxvf firefox-esr.tar.bz2 && \
  mv firefox /usr/local && \
  popd && \
  \
  gem2.3 install headless -v 2.2.3 && \
  gem2.3 install selenium-webdriver -v 2.53.4 && \
  # cleanup
  rm -rf /tmp/docker-build && \
  yum clean all && \
  rm -rf /var/cache/yum/* && \
  rm -rf /tmp/* && \
  rm -rf /var/tmp/*