anchor.diff:    `# Create cache directory`; \
     DIR_CACHE="/setupfiles/cache/"; \
     mkdir -vp $DIR_CACHE; \
  -
  -# put custom commands here
  -RUN \
  +  \
  +  `############################`; \
  +  `# put custom commands here`; \
  +  `############################`; \
     `# Install hekad`; \
     DL_PROTO="https://"; \
     DL_FILE="github.com/mozilla-services/heka/releases/download/v0.4.2/heka_0.4.2_amd64.deb"; \
  
positive.code:    make \
     automake \
     uuid-dev \
     libtool   
  
  RUN \
    apt-get -y install \
  
negative.code:   \
    `# Add LOGSERVER ip address to hekad config`; \
    LOGSERVER_IP=$(/sbin/ip route | awk '/default/ { print $3; }'); \
    sed -i "s/{{LOGSERVER_IP}}/$LOGSERVER_IP/g" /etc/hekad/aggregator_output.toml; \
    `###############################`; \
    `# CLEANUP`; \
    `###############################`; \
    rm -vrf /setupfiles;
  
  CMD ["/usr/bin/supervisord", "--nodaemon"]
  
  # sshd port
  EXPOSE 22
  # hekad port
  EXPOSE 5565
  # data volume
  VOLUME [ "/data" ]
  