Dockerfile

FROM ruby:2.3.3

RUN apt-get update -qq && apt-get install -y nodejs postgresql-client
RUN mkdir /app
WORKDIR /app

# Install node
RUN curl -sL https://deb.nodesource.com/setup_11.x | bash -
RUN apt-get install -y nodejs

RUN node -v
RUN npm -v

#Install phantomjs in the app container
RUN apt-get install build-essential chrpath libssl-dev libxft-dev libfreetype6-dev libfreetype6 libfontconfig1-dev libfontconfig1 -y
RUN wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-2.1.1-linux-x86_64.tar.bz2
RUN tar xvjf phantomjs-2.1.1-linux-x86_64.tar.bz2 -C /usr/local/share/
RUN ln -s /usr/local/share/phantomjs-2.1.1-linux-x86_64/bin/phantomjs /usr/local/bin/

RUN phantomjs --version

# Copy the Gemfile as well as the Gemfile.lock and install
# the RubyGems. This is a separate step so the dependencies
# will be cached unless changes to one of those two files
# are made.
COPY Gemfile Gemfile.lock ./
RUN gem install bundler -v 1.17.3
RUN bundle install --verbose --jobs 20 --retry 5
RUN npm install -g yarn
RUN yarn install --check-files

# Copy the main application.
COPY . ./

# Add a script to be executed every time the container starts.
COPY entrypoint.sh /usr/bin/
RUN chmod +x /usr/bin/entrypoint.sh
ENTRYPOINT ["entrypoint.sh"]
EXPOSE 3000

# Start the main process.
CMD ["bundle", "exec", "rails", "server", "-b", "0.0.0.0"]