java dynaimc cds in container

Dockerfile

FROM openjdk:12-jdk AS base

ENV SDKMAN_DIR=/usr/local/sdkman

WORKDIR /myapp

RUN set -x \
 && yum update -y \
 && yum install -y ca-certificates curl zip unzip sed binutils which \
 && curl -fsSL https://get.sdkman.io | bash \
 && echo source \"${SDKMAN_DIR}/bin/sdkman-init.sh\" > /etc/profile.d/sdkman.sh

RUN set -x \
 && bash -l -c "sdk install micronaut 1.2.5" \
 && bash -l -c "mn create-app --inplace myapp" \
 && sed -i -e '/public static void main/a System.out.println("JVM - Startup completed in " + java.lang.management.ManagementFactory.getRuntimeMXBean().getUptime());' \
    src/main/java/myapp/Application.java \
 && bash -l -c "./gradlew --no-daemon -x test build"


FROM openjdk:13-alpine AS jsa

ENV JAVA_OPTS="-Xmx128m"

WORKDIR /myapp

COPY --from=base /myapp/build/libs/myapp-0.1-all.jar myapp-0.1-all.jar

RUN set -x \
 && /usr/bin/timeout -s INT 5 java -XX:ArchiveClassesAtExit=myapp-0.1.jsa -jar myapp-0.1-all.jar; exit 0


# XXX java.lang.OutOfMemoryError
# FROM openjdk:13-alpine AS so

# ENV JAVA_OPTS="-Xmx128m"

# WORKDIR /myapp

# RUN set -x \
#  && jaotc -J-Xmx1024m --output=java.base.so --module java.base


FROM openjdk:13-alpine

ENV JAVA_OPTS="-Xmx128m"

WORKDIR /myapp

COPY --from=jsa /myapp/myapp-0.1-all.jar myapp-0.1-all.jar
COPY --from=jsa /myapp/myapp-0.1.jsa myapp-0.1.jsa
# COPY --from=so /myapp/java.base.so java.base.so

ENTRYPOINT ["/usr/bin/timeout", "-s", "INT", "5", "sh", "-c"]
CMD ["java ${JAVA_OPTS} -jar myapp-0.1-all.jar"]

test.sh

#!/bin/bash

docker build --rm -f Dockerfile -t dynamic-cds-test:dev .

for _ in $(seq 1 10); do
  docker container run --rm -it \
  --env JAVA_OPTS="-Xshare:off" dynamic-cds-test:dev
done | tee 01-nocds.log

for _ in $(seq 1 10); do
docker container run --rm -it \
  dynamic-cds-test:dev
done | tee 02-defaultcds.log

for _ in $(seq 1 10); do
  docker container run --rm -it \
  --env JAVA_OPTS="-XX:SharedArchiveFile=./myapp-0.1.jsa" dynamic-cds-test:dev
done | tee 03-dynamiccds.log

# for _ in $(seq 1 10); do
#   docker container run --rm -it \
#   --env JAVA_OPTS="-XX:SharedArchiveFile=myapp-0.1.jsa -XX:AOTLibrary=java.base.so" dynamic-cds-test:dev
# done | tee 04-aotdynamiccds.log

nocds_jvm=$(grep "Startup completed" 01-nocds.log | grep JVM | awk '{ m+=$6 } END { print m/NR }')
nocds_mn=$(grep "Startup completed" 01-nocds.log | grep Micronaut | awk '{ sub(/ms\./, "", $10); m+=$10 } END { print m/NR }')
defaultcds_jvm=$(grep "Startup completed" 02-defaultcds.log | grep JVM | awk '{ m+=$6 } END { print m/NR }')
defaultcds_mn=$(grep "Startup completed" 02-defaultcds.log | grep Micronaut | awk '{ sub(/ms\./, "", $10); m+=$10 } END { print m/NR }')
dynamiccds_jvm=$(grep "Startup completed" 03-dynamiccds.log | grep JVM | awk '{ m+=$6 } END { print m/NR }')
dynamiccds_mn=$(grep "Startup completed" 03-dynamiccds.log | grep Micronaut | awk '{ sub(/ms\./, "", $10); m+=$10 } END { print m/NR }')
cat - <<EOF
| パターン | JVM | Micronaut |
|:-:|:-:|:-:|
| NoCDS | ${nocds_jvm} | ${nocds_mn} |
| DefaultCDS | ${defaultcds_jvm} | ${defaultcds_mn} |
| DynamicCDS | ${dynamiccds_jvm} | ${dynamiccds_mn} |
EOF