occlum/demos/java/run_java_on_occlum.sh

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#!/bin/bash
set -e
BLUE='\033[1;34m'
NC='\033[0m'
show_usage() {
echo "Error: invalid arguments"
echo "Usage: $0 web_app/hello/processBuilder"
exit 1
}
check_file_exist() {
file=$1
if [ ! -f ${file} ];then
echo "Error: cannot stat file '${file}'"
echo "Please see README and build it"
exit 1
fi
}
init_instance() {
# Init Occlum instance
rm -rf occlum_instance && mkdir occlum_instance
cd occlum_instance
occlum init
new_json="$(jq '.resource_limits.user_space_size = "1680MB" |
.resource_limits.kernel_space_heap_size="64MB" |
.resource_limits.max_num_of_threads = 64 |
.process.default_heap_size = "256MB" |
.entry_points = [ "/usr/lib/jvm/java-11-alibaba-dragonwell/jre/bin" ] |
.env.default = [ "LD_LIBRARY_PATH=/usr/lib/jvm/java-11-alibaba-dragonwell/jre/lib/server:/usr/lib/jvm/java-11-alibaba-dragonwell/jre/lib:/usr/lib/jvm/java-11-alibaba-dragonwell/jre/../lib" ]' Occlum.json)" && \
echo "${new_json}" > Occlum.json
}
build_web() {
# Copy JVM and JAR file into Occlum instance and build
rm -rf image
copy_bom -f ../webserver.yaml --root image --include-dir /opt/occlum/etc/template
occlum build
}
run_web() {
jar_path=./gs-messaging-stomp-websocket/complete/target/gs-messaging-stomp-websocket-0.1.0.jar
check_file_exist ${jar_path}
jar_file=`basename "${jar_path}"`
init_instance
build_web
echo -e "${BLUE}occlum run JVM web app${NC}"
occlum run /usr/lib/jvm/java-11-alibaba-dragonwell/jre/bin/java -Xmx512m -XX:-UseCompressedOops -XX:MaxMetaspaceSize=64m -Dos.name=Linux -jar /usr/lib/spring/${jar_file}
}
build_hello() {
# Copy JVM and class file into Occlum instance and build
rm -rf image
copy_bom -f ../hello_world.yaml --root image --include-dir /opt/occlum/etc/template
occlum build
}
run_hello() {
hello=./hello_world/Main.class
check_file_exist ${hello}
init_instance
build_hello
echo -e "${BLUE}occlum run JVM hello${NC}"
occlum run /usr/lib/jvm/java-11-alibaba-dragonwell/jre/bin/java -Xmx512m -XX:-UseCompressedOops -XX:MaxMetaspaceSize=64m -Dos.name=Linux Main
}
build_processBuilder() {
# Copy JVM and class file into Occlum instance and build
rm -rf image
copy_bom -f ../process_builder.yaml --root image --include-dir /opt/occlum/etc/template
# Need bigger user space size for multiprocess
new_json="$(jq '.resource_limits.user_space_size = "6000MB"' Occlum.json)" && \
echo "${new_json}" > Occlum.json
occlum build
}
run_processBuilder() {
app=./processBuilder/processBuilder.class
check_file_exist ${app}
init_instance
build_processBuilder
echo -e "${BLUE}occlum run JVM processBuilder${NC}"
occlum run /usr/lib/jvm/java-11-alibaba-dragonwell/jre/bin/java -Xmx512m -XX:-UseCompressedOops -XX:MaxMetaspaceSize=64m -Dos.name=Linux \
-Djdk.lang.Process.launchMechanism=posix_spawn processBuilder
}
arg=$1
case "$arg" in
web_app)
run_web
;;
hello)
run_hello
;;
processBuilder)
run_processBuilder
;;
*)
show_usage
esac