anchor.diff:  RUN apt-get install -y supervisor
   
   # Zookeeper
  -RUN wget -q -O - http://www.us.apache.org/dist/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz | tar -xzf - -C /usr/local
  -RUN cp /usr/local/zookeeper-3.4.6/conf/zoo_sample.cfg /usr/local/zookeeper-3.4.6/conf/zoo.cfg
  -RUN ln -s /usr/local/zookeeper-3.4.6 /usr/local/zookeeper
  +RUN wget -q -O - http://www.us.apache.org/dist/zookeeper/zookeeper-3.4.6/zookeeper-3.4.6.tar.gz | tar -xzf - -C /usr/local \
  +      && cp /usr/local/zookeeper-3.4.6/conf/zoo_sample.cfg /usr/local/zookeeper-3.4.6/conf/zoo.cfg \
  +      && ln -s /usr/local/zookeeper-3.4.6 /usr/local/zookeeper
   
   # Kafka
  -RUN wget -q -O - http://www.us.apache.org/dist/kafka/0.8.2.0/kafka_2.10-0.8.2.0.tgz | tar -xzf - -C /usr/local
  -RUN ln -s /usr/local/kafka_2.10-0.8.2.0 /usr/local/kafka
  -# unless advertised.host.name is set to docker ip, publishing data fails
  -ADD docker_ip docker_ip
  -RUN perl -pi -e "s/#advertised.port=.*/advertised.port=9092/; s/#advertised.host.*/advertised.host.name=$(cat docker_ip)/" /usr/local/kafka/config/server.properties
  -
  -# git
  -RUN apt-get install -y git
  +RUN wget -q -O - http://www.us.apache.org/dist/kafka/0.8.2.0/kafka_2.10-0.8.2.0.tgz | tar -xzf - -C /usr/local \
  +      && ln -s /usr/local/kafka_2.10-0.8.2.0 /usr/local/kafka
   
   # Druid system user
  -RUN adduser --system --group --no-create-home druid
  -RUN mkdir -p /var/lib/druid
  -RUN chown druid:druid /var/lib/druid
  +RUN adduser --system --group --no-create-home druid \
  +      && mkdir -p /var/lib/druid \
  +      && chown druid:druid /var/lib/druid
   
  -# Add druid jars
  +# clean up time
  +RUN apt-get clean \
  +      && rm -rf /tmp/* \
  +                /var/tmp/* \
  +                /var/lib/apt/lists \
  +                /root/.m2
  +
  +
  +# Setup metadata store
  +RUN /etc/init.d/mysql start \
  +      && echo "GRANT ALL ON druid.* TO 'druid'@'%' IDENTIFIED BY 'diurd'; CREATE database druid DEFAULT CHARACTER SET utf8;" | mysql -u root \
  +      && /etc/init.d/mysql stop
  +
  +# Add Druid jars
   ADD lib/* /usr/local/druid/lib/
   
  -WORKDIR /
  -
  -# Setup metadata store
  -RUN /etc/init.d/mysql start && echo "GRANT ALL ON druid.* TO 'druid'@'%' IDENTIFIED BY 'diurd'; CREATE database druid DEFAULT CHARACTER SET utf8;" | mysql -u root && /etc/init.d/mysql stop
  -
   # Add sample data
  -RUN /etc/init.d/mysql start && java -Ddruid.metadata.storage.type=mysql -cp "/usr/local/druid/lib/*" io.druid.cli.Main tools metadata-init --connectURI="jdbc:mysql://localhost:3306/druid" --user=druid --password=diurd && /etc/init.d/mysql stop
  +RUN /etc/init.d/mysql start \
  +      && java -cp "/usr/local/druid/lib/*" -Ddruid.metadata.storage.type=mysql io.druid.cli.Main tools metadata-init --connectURI="jdbc:mysql://localhost:3306/druid" --user=druid --password=diurd \
  +      && /etc/init.d/mysql stop
   ADD sample-data.sql sample-data.sql
  -RUN /etc/init.d/mysql start && cat sample-data.sql | mysql -u root druid && /etc/init.d/mysql stop
  +RUN /etc/init.d/mysql start \
  +      && cat sample-data.sql | mysql -u root druid \
  +      && /etc/init.d/mysql stop
   
   # Setup supervisord
   ADD supervisord.conf /etc/supervisor/conf.d/supervisord.conf
   
  -# Clean up
  -RUN apt-get clean && rm -rf /tmp/* /var/tmp/*
  +# unless advertised.host.name is set to docker host ip, publishing data fails
  +# run this last to avoid rebuilding the image every time the ip changes
  +ADD docker_ip docker_ip
  +RUN perl -pi -e "s/#advertised.port=.*/advertised.port=9092/; s/#advertised.host.*/advertised.host.name=$(cat docker_ip)/" /usr/local/kafka/config/server.properties
   
   # Expose ports:
   # - 8081: HTTP (coordinator)
  
positive.code: EXPOSE 3306
  EXPOSE 2181 2888 3888
  EXPOSE 8100 8101 8102 8103 8104
  WORKDIR /var/lib/druid
  ENTRYPOINT export HOST_IP="$(resolveip -s $HOSTNAME)" && exec /usr/bin/supervisord -c /etc/supervisor/conf.d/supervisord.conf
  
negative.code: FROM ubuntu:14.04
  
  # Java 8
  RUN apt-get update \
        && apt-get install -y software-properties-common \
        && apt-add-repository -y ppa:webupd8team/java \
        && apt-get purge --auto-remove -y software-properties-common \
        && apt-get update \
        && echo oracle-java-8-installer shared/accepted-oracle-license-v1-1 select true | /usr/bin/debconf-set-selections \
        && apt-get install -y oracle-java8-installer \
        && apt-get install -y oracle-java8-set-default \
        && rm -rf /var/cache/oracle-jdk8-installer
  
  # MySQL (Metadata store)
  RUN apt-get install -y mysql-server
  