Dockerfile

FROM alpine:3.5
MAINTAINER Mike Babineau michael.babineau@gmail.com

ARG ZK_VERSION="3.4.10"
ARG EXHIBITOR_VERSION="1.5.6"
ARG MAVEN_VERSION="3.5.0"

ENV \
    MAVEN_HOME="/usr/share/maven" \
    JAVA_HOME="/usr/lib/jvm/default-jvm" \
    JAVA_PREFS="/.java/.userPrefs" \
    ZK_HOME="/opt/zookeeper" \
    EXBT_HOME="/opt/exhibitor" \
    ZK_RELEASE="https://www.apache.org/dist/zookeeper/zookeeper-$ZK_VERSION/zookeeper-$ZK_VERSION.tar.gz" \
    EXHIBITOR_POM="https://raw.githubusercontent.com/soabase/exhibitor/v$EXHIBITOR_VERSION/exhibitor-standalone/src/main/resources/buildscripts/standalone/maven/pom.xml" \
    BUILD_DEPS="curl openjdk8 bash tar"

ENV PATH=${JAVA_HOME}/bin:${PATH}

RUN \
    # Install Java8
    apk add --update ${BUILD_DEPS} \

    # Default DNS cache TTL is -1. DNS records, like, change, man
    && grep '^networkaddress.cache.ttl=' ${JAVA_HOME}/jre/lib/security/java.security || echo 'networkaddress.cache.ttl=60' >> ${JAVA_HOME}/jre/lib/security/java.security \

    # Cleanup
    && rm -rf -- /var/cache/apk/* \

    # Install Maven
    && cd /usr/share \
    && wget -q http://archive.apache.org/dist/maven/maven-3/${MAVEN_VERSION}/binaries/apache-maven-${MAVEN_VERSION}-bin.tar.gz -O - | tar xzf - \
    && mv /usr/share/apache-maven-${MAVEN_VERSION} /usr/share/maven \
    && ln -s /usr/share/maven/bin/mvn /usr/bin/mvn

RUN \
    mkdir -p /opt \

    # Install ZK
    && curl -Lo /tmp/zookeeper.tgz ${ZK_RELEASE} \
    && mkdir -p ${ZK_HOME}/transactions ${ZK_HOME}/snapshots \
    && tar -xzf /tmp/zookeeper.tgz -C ${ZK_HOME} --strip-components=1 \
    && rm /tmp/zookeeper.tgz \

    # Install Exhibitor
    && mkdir -p ${EXBT_HOME} \
    && curl -Lo ${EXBT_HOME}/pom.xml ${EXHIBITOR_POM} \
    && mvn -f ${EXBT_HOME}/pom.xml package \
    && ln -s ${EXBT_HOME}/target/exhibitor*jar ${EXBT_HOME}/exhibitor.jar \
    && chown -R nobody.nobody ${ZK_HOME} ${EXBT_HOME}

# Add the wrapper script to setup configs and exec exhibitor
ADD include/wrapper.sh ${EXBT_HOME}/wrapper.sh

# Add the optional web.xml for authentication
ADD include/web.xml ${EXBT_HOME}/web.xml

# To store Java preferences
RUN mkdir -p ${JAVA_PREFS}
RUN chown -R nobody.nobody ${JAVA_PREFS}

USER nobody
WORKDIR /opt/exhibitor
EXPOSE 2181 2888 3888 8181

ENTRYPOINT ["bash", "-ex", "/opt/exhibitor/wrapper.sh"]