anchor.diff:    && rm -rf /var/lib/apt/lists/* \
   # && rm -rf /var/lib/mongodb
   	&& mv /etc/mongod.conf /etc/mongod.conf.orig
  -###  && echo kernel/mm/transparent_hugepage/enabled = never >> /etc/sysfs.conf \
   ##  && mkdir -p /data/db /data/configdb \
   ##	&& chown -R mongodb:mongodb /data/db /data/configdb
   
  
positive.code: ###  && apt-get autoremove && apt-get clean \
  # delete all the apt list files since they're big and get stale quickly
  ###  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
  # this forces "apt-get update" in dependent images, which is also good
  
  # grab gosu for easy step-down from root
  # ENV GOSU_VERSION 1.7
  
negative.code: 
  
  # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
  RUN groupadd -r mongodb && useradd -r -g mongodb mongodb
  
  ### RUN apt-get update \
  ### 	&& apt-get install -y \
  