CDS-enabled Payara Micro docker image

Dockerfile

FROM azul/zulu-openjdk-alpine:11.0.6

ENV PAYARA_HOME=/opt/payara

# Create and set the Payara user and working directory owned
# by the new user
RUN addgroup payara && \
adduser -D -h ${PAYARA_HOME} -H -s /bin/bash payara -G payara && \
echo payara:payara | chpasswd && \
mkdir -p ${PAYARA_HOME} && \
chown -R payara:payara ${PAYARA_HOME}
USER payara

WORKDIR ${PAYARA_HOME}

COPY payara-micro.jar ${PAYARA_HOME}/payara-micro.jar
COPY app.war ${PAYARA_HOME}

    # 1. Create micro-root/launch-payara.jar
RUN java -jar payara-micro.jar --rootdir micro-root --outputlauncher && \
    # 2. payara-micro.jar is not needed anymore
    rm ${PAYARA_HOME}/payara-micro.jar && \
    # 3. Deploy the application, and collect classes to put
    #    into CDS archive
    java -XX:DumpLoadedClassList=classes.lst \
         -jar micro-root/launch-micro.jar \
         --deploy app.war:/ --warmup && \
    # 4. Create CDS archive payara.jsa
    java -Xshare:dump -XX:SharedClassListFile=classes.lst \
         -XX:SharedArchiveFile=payara.jsa \
         -jar micro-root/launch-micro.jar && \
    # 5. Cleanup - application is already in root directory
    rm -rf classes.lst app.war

# Productive run, no explicit deployment necessary
ENTRYPOINT ["java", "-XX:MaxRAMPercentage=90.0", \
    "-Xshare:on", "-XX:SharedArchiveFile=payara.jsa", \
    "-jar", "micro-root/launch-micro.jar"]