anchor.diff:  #   - build-essential: To ensure certain gems can be compiled
   #   - nodejs: Compile assets
   RUN set -x; \
  -  apt-get update \
  -  && apt-get install -y --no-install-recommends \
  +  apt update \
  +  && apt install -y --no-install-recommends \
     openssh-server \
     zlib1g-dev \
     build-essential \
  
positive.code:   libmagickwand-dev
  
  # Set an environment variable where the Rails app is installed to inside of Docker image
  ENV RAILS_ROOT /var/www/cenit
  RUN mkdir -p $RAILS_ROOT
  
  RUN mkdir -p /var/www/shared/log
  RUN mkdir -p /var/www/shared/pids
  RUN mkdir -p /var/www/shared/sockets
  
  # Set working directory
  WORKDIR $RAILS_ROOT
  
negative.code: # Adding project files
  COPY . .
  
  ENV SKIP_MONGO_CLIENT='true'
  
  RUN set -x; \
     bundle exec rake assets:precompile
  
  EXPOSE 8080
  
  CMD ["bundle", "exec", "unicorn", "-c", "config/unicorn.rb"]
  