How to do JVM performance analysis in docker container?
1. Prerequisite Java application with docker based on JDK 8 and alpine. This app is a Jhipster application. Dockerfile:
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FROM openjdk:8-jre-alpine ENV SPRING_OUTPUT_ANSI_ENABLED=ALWAYS \ JHIPSTER_SLEEP=0 \ JAVA_OPTS="" # Add a jhipster user to run our application so that it doesn't need to run as root RUN adduser -D -s /bin/sh jhipster WORKDIR /home/jhipster ADD entrypoint.sh entrypoint.sh RUN chmod 755 entrypoint.sh && chown jhipster:jhipster entrypoint.sh USER jhipster ENTRYPOINT ["./entrypoint.sh"] EXPOSE 18082 5701/udp ADD *.jar app.jar |
entrypoint.sh
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#!/bin/sh echo "The application will start in ${JHIPSTER_SLEEP}s..." && sleep ${JHIPSTER_SLEEP} exec java ${JAVA_OPTS} -Djava.security.egd=file:/dev/./urandom -Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=5005,suspend=n -jar "${HOME}/app.jar" "$@" |
2. Precheck Enter container to check the process. Of course, we...
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