anchor.diff:  FROM ruby:2.3.3
   
  -# Install MySQL client and NodeJS
  -RUN apt-get update && apt-get install -y nodejs mysql-client --no-install-recommends
  +# Install MySQL client
  +RUN apt-get update && apt-get install -y mysql-client --no-install-recommends
   
   # Install Nginx
   # Source: https://github.com/nginxinc/docker-nginx/blob/master/stable/jessie/Dockerfile
  
positive.code:     && rm wk.tar.xz \
      && rm -r wkhtmltox
  ADD docker/wkhtmltopdf/fontconfig.xml /etc/fonts/conf.d/10-wkhtmltopdf.conf
  
  # Add the nginx site and config
  RUN rm -rf /etc/nginx/sites-available/default
  
negative.code: 						gettext-base \
  	&& rm -rf /var/lib/apt/lists/*
  
  ## Install Node.js
  # Source: https://github.com/nodejs/docker-node/blob/master/6.9/wheezy/Dockerfile
  RUN groupadd -r node && useradd -r -g node node
  
  # gpg keys listed at https://github.com/nodejs/node
  RUN set -ex \
    && for key in \
      9554F04D7259F04124DE6B476D5A82AC7E37093B \
      94AE36675C464D64BAFA68DD7434390BDBE9B9C5 \
      0034A06D9D9B0064CE8ADF6BF1747F4AD2306D93 \
      FD3A5288F042B6850C66B31F09FE44734EB7990E \
      71DCFD284A79C3B38668286BC97EC7A07EDE3FC1 \
      DD8F2338BAE7501E3DD5AC78C273792F7D83545D \
      B9AE9905FFD7803F25714661B63B535A4C206CA9 \
      C4F0DFFF4E8C1A8236409D08E73BC641CC11F4C8 \
    ; do \
      gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$key"; \
    done
  
  ENV NPM_CONFIG_LOGLEVEL info
  ENV NODE_VERSION 6.9.1
  
  RUN curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/node-v$NODE_VERSION-linux-x64.tar.xz" \
    && curl -SLO "https://nodejs.org/dist/v$NODE_VERSION/SHASUMS256.txt.asc" \
    && gpg --batch --decrypt --output SHASUMS256.txt SHASUMS256.txt.asc \
    && grep " node-v$NODE_VERSION-linux-x64.tar.xz\$" SHASUMS256.txt | sha256sum -c - \
    && tar -xJf "node-v$NODE_VERSION-linux-x64.tar.xz" -C /usr/local --strip-components=1 \
    && rm "node-v$NODE_VERSION-linux-x64.tar.xz" SHASUMS256.txt.asc SHASUMS256.txt \
    && ln -s /usr/local/bin/node /usr/local/bin/nodejs
  
  # Install wkhtmltopdf
  RUN apt-get update && apt-get install -y libxrender1 libxext6 fonts-lato --no-install-recommends && \
      curl -L#o wk.tar.xz http://download.gna.org/wkhtmltopdf/0.12/0.12.3/wkhtmltox-0.12.3_linux-generic-amd64.tar.xz \
      && tar xf wk.tar.xz \
  