anchor.diff:  # apt-get essential packages
   ENV DEBIAN_FRONTEND noninteractive
   RUN apt-get -y update
  -RUN apt-get install -y nginx libexpat1 ssl-cert python-ldap python-cairo python-django python-twisted python-django-tagging python-simplejson python-pyparsing python-memcache python-pysqlite2 python-support python-pip gunicorn supervisor 
  +RUN apt-get install -y nginx libexpat1 ssl-cert python-ldap python-cairo python-django python-twisted python-django-tagging python-simplejson python-pyparsing python-memcache python-pysqlite2 python-support python-pip python-dev gunicorn supervisor build-essential software-properties-common
  +
  +# Install pytz
  +RUN pip install pytz
   
   # Install Whisper, Carbon and Graphite using pip 
   RUN pip install whisper
  
positive.code: 
  # Configure stuff 
  RUN mkdir -p /opt/graphite/storage/whisper && \
    chmod 0755 /opt/graphite/storage/whisper
  WORKDIR /opt/graphite/webapp/graphite
  RUN python manage.py syncdb --noinput && \
    cp local_settings.py.example local_settings.py && \ 
  
negative.code: # Docker file to build a Graphite and Grafana server
  FROM ubuntu:14.04
  
  MAINTAINER Marco Ramos <mramos29@sapo.pt> @mramos29
  
  