anchor.diff: +# node version dependent on meteor version
   FROM node:8.9.3
  -# node version dependent on meteor version
   
   # (even if copied as root you still need to change)
   # https://github.com/moby/moby/issues/6119
  
positive.code:     mkdir /home/app/R_libs && \
      bash /r_requirements.sh && \
      \
      pip install --user -r /requirements.txt
  
  USER root
  COPY ./compose/meteor/src/src.tar.gz /app/src.tar.gz
  
negative.code: COPY ./requirements.txt /requirements.txt
  COPY ./r_requirements.sh /r_requirements.sh
  
  # add rstudio debian install for R (requires version >3.3)
  # https://cran.r-project.org/bin/linux/debian/
  # install R from apt-get
  # install python 3.6 from source :/
  RUN \
      sh -c 'echo "deb http://cran.rstudio.com/bin/linux/debian jessie-cran3/" >> /etc/apt/sources.list' && \
      apt-key adv --keyserver keys.gnupg.net --recv-key '6212B7B7931C4BB16280BA1306F90DE5381BA480' && \
      \
      apt-get update && \
      apt-get install -y wget bsdtar r-base r-base-dev && \
      apt-get clean && \
      \
      wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz && \
      tar zxf Python-3.6.5.tgz && \
      cd ./Python-3.6.5 && \
      ./configure && \
      make && \
      make altinstall && \
      cd .. && \
      rm Python-3.6.5.tgz && \
      rm -rf ./Python-3.6.5
  
  # create paths and users
  # change executable permissions
  RUN npm install forever -g && \
      \
      mkdir -p /app/production && \
      mkdir -p /app/logs && \
  