Dockerfile

FROM ruby:2.7-slim

ENV PHANTOMJS_VERSION 1.9.8

RUN apt-get update -qq && \
  DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends \
  make \
  curl \
  gcc \
  g++ \
  libsqlite3-dev \
  git-core \
  wget \
  libfreetype6 \
  libfontconfig \
  bzip2 && \
  apt-get clean

RUN \
  wget -q --no-check-certificate -O /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 && \
  mkdir -p /srv/var && \
  tar -xjf /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 -C /tmp && \
  rm -f /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64.tar.bz2 && \
  mv /tmp/phantomjs-$PHANTOMJS_VERSION-linux-x86_64/ /srv/var/phantomjs && \
  ln -s /srv/var/phantomjs/bin/phantomjs /usr/bin/phantomjs

RUN curl -o- -L https://yarnpkg.com/install.sh | bash

WORKDIR /app