Dockerfile

FROM java:openjdk-8-jre

MAINTAINER Adam Harper <docker@adam-harper.com>

# Update system and install supervisord
ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update \
 && apt-get install -y wget \
 && rm -rf /var/lib/apt/lists/* \
 && apt-get clean

# Install Zookeeper from official binary release
ENV APACHE_MIRROR http://mirror.ox.ac.uk/sites/rsync.apache.org
ENV ZK_VERSION 3.5.3-beta

RUN cd /tmp \
 && wget -q $APACHE_MIRROR/zookeeper/zookeeper-$ZK_VERSION/zookeeper-$ZK_VERSION.tar.gz

RUN mkdir -p /opt \
 && tar xf /tmp/zookeeper-$ZK_VERSION.tar.gz -C /opt \
 && ln -s /opt/zookeeper-$ZK_VERSION /opt/zookeeper \
 && mkdir -p /data

RUN rm /tmp/*.tar.gz

# copy configuration files
COPY etc/zoo.cfg /opt/zookeeper/conf/

# expose zookeeper follower, election, client, HTTP, and JMX
EXPOSE 2172 2173 2181 8080 7000

# set service names for registrator
ENV SERVICE_2172_NAME zookeeper-follower
ENV SERVICE_2173_NAME zookeeper-election
ENV SERVICE_2181_NAME zookeeper
ENV SERVICE_8080_NAME zookeeper-admin
ENV SERVICE_7000_NAME jmx

# register a consul health check against the admin server
ENV SERVICE_8080_CHECK_HTTP=/commands/ruok

# expose mount points for service data
VOLUME /data

# setup runtime environment
COPY bin/* /usr/local/bin/
RUN chmod +x /usr/local/bin/*
CMD ["/usr/local/bin/start", "", ""]