Dockerfile

FROM ruby:2.4

RUN apt-get update && apt-get install -y --fix-missing curl unzip

# Install Chrome WebDriver
RUN CHROMEDRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE` && \
    mkdir -p /opt/chromedriver-$CHROMEDRIVER_VERSION && \
    curl -sS -o /tmp/chromedriver_linux64.zip http://chromedriver.storage.googleapis.com/$CHROMEDRIVER_VERSION/chromedriver_linux64.zip && \
    unzip -qq /tmp/chromedriver_linux64.zip -d /opt/chromedriver-$CHROMEDRIVER_VERSION && \
    rm /tmp/chromedriver_linux64.zip && \
    chmod +x /opt/chromedriver-$CHROMEDRIVER_VERSION/chromedriver && \
    ln -fs /opt/chromedriver-$CHROMEDRIVER_VERSION/chromedriver /usr/local/bin/chromedriver

RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'
RUN apt-get update && apt-get install -y google-chrome-stable

WORKDIR /app
COPY Gemfile /app
RUN bundle
COPY . /app