Dockerfile

# https://store.docker.com/images/node
FROM node:12-stretch

# https://tracker.debian.org/pkg/chromium-browser
# https://tracker.debian.org/pkg/firefox-esr
ARG CHROMIUM=70.0.3538.110-1~deb9u1
ARG FIREFOX=60.6.3esr-1~deb9u1

# lock yarn version (note: node:stretch comes with yarn, we install our own version)
ENV YARN_VERSION 1.19.1
RUN curl -fSLO --compressed "https://yarnpkg.com/downloads/$YARN_VERSION/yarn-v$YARN_VERSION.tar.gz" \
  && tar -xzf yarn-v$YARN_VERSION.tar.gz -C /opt/ \
  && ln -snf /opt/yarn-v$YARN_VERSION/bin/yarn /usr/local/bin/yarn \
  && ln -snf /opt/yarn-v$YARN_VERSION/bin/yarnpkg /usr/local/bin/yarnpkg \
  && rm yarn-v$YARN_VERSION.tar.gz

RUN \
  apt-get update && apt-get install -y --no-install-recommends \
  # browsers
  chromium=${CHROMIUM} firefox-esr=${FIREFOX} \
  # cci deps
  git tar gzip ca-certificates \
  # deployment
  bash curl make \
  && rm -rf  /var/lib/apt/lists/* /tmp/*

ENV \
  # disable puppeteer download as it will not work with this image
  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=true \
  # browser bin paths
  CHROME_BIN=/usr/bin/chromium \
  FIREFOX_BIN=/usr/bin/firefox