anchor.diff:  ENTRYPOINT ["/start"]
   
   # Default arguments if not provided on `docker run` command line:
  -CMD ["--save-conf"]
  +CMD ["--damon"]
   
   # TODO: where to store stuff
   # CMD ["--directories etc"]
  
positive.code:     opam switch install ramen --alias-of 4.05.0+flambda
  
  # Rebuild a new image from here
  RUN echo "version 6"
  
  # Install ramen
  RUN opam update && \
  
negative.code: # Make the following massive touch a bit quicker by deleting content:
  RUN rm -rf /root/.opam/repo /root/.opam/system /home /boot /opt /media /mnt /srv
  
  RUN touch /img_creation && \
      find /root /usr /var /lib /bin /sbin -type f | xargs touch -m -r /img_creation && \
      sleep 1.1 && \
      find /root/.opam/ramen -type f -name META -exec sed -i -e /exists_if/d {} \; && \
      fprobe -i eth0 -fip localhost:2055 && \
      (timeout 10s collectd -f -C /etc/collectd/collectd.conf || true) && \
      ramen_configurator --help && \
      ramen start -d --daemon && sleep 2 && \
      ramen add --op 'SELECT MIN time, fit_multi(3, value, time) AS smth1 FROM demo/collectd' \
                --op 'READ AND DELETE FILES "/tmp/test.csv" PREPROCESS WITH "lz4 -d -c" (smth1 string, smth2 u128)' \
  