anchor.diff:      ldconfig && \
       cd /tmp && \
       rm -rf /tmp/geos-3.7.1 /tmp/geos-3.7.1.tar.bz2
  +
   
   # Install and configure PROJ.4
   #
  
positive.code:     ldconfig
  
  
  # Working directory
  #
  WORKDIR /app/backend
  
  
  USER 1001
negative.code: FROM centos/python-36-centos7
  
  
  # Switch to root user
  #
  USER root
  
  
  # External libraries required by Python GIS extensions (e.g. GeoDjango, GeoAlchemy)
  # Install and configure GEOS
  #
  WORKDIR /tmp
  