it's a mess, but it works.

Author: msailes

Dockerfile

@@ -0,0 +1,21 @@
+FROM amazonlinux:2 as packager
+
+RUN yum -y update \
+    && yum install -y tar zip gzip bzip2-devel ed gcc gcc-c++ gcc-gfortran \
+    less libcurl-devel openssl openssl-devel readline-devel xz-devel \
+    zlib-devel glibc-static libcxx libcxx-devel llvm-toolset-7 zlib-static \
+    && rm -rf /var/cache/yum
+
+ENV JDK_FOLDERNAME jdk-17
+ENV JDK_FILENAME openjdk-17_linux-x64_bin.tar.gz
+RUN curl -4 -L https://download.java.net/java/GA/jdk17/0d483333a00540d886896bac774ff48b/35/GPL/${JDK_FILENAME} | tar -xvz
+RUN mv $JDK_FOLDERNAME /usr/lib/jdk17
+RUN yum install -y binutils
+RUN rm -rf $JDK_FOLDERNAME
+ENV PATH="/usr/lib/jdk17/bin:$PATH"
+RUN jlink --add-modules "$(java --list-modules | cut -f1 -d'@' | tr '\n' ',')" --compress 0 --no-man-pages --no-header-files --strip-debug --output /opt/jre17-slim
+RUN find /opt/jre17-slim/lib -name *.so -exec strip -p --strip-unneeded {} \;
+RUN java -Xshare:dump -version
+RUN rm /opt/jre17-slim/lib/classlist
+RUN cp /usr/lib/jdk17/lib/server/classes.jsa /opt/jre17-slim/lib/server/classes.jsa
+RUN cd /opt/ && zip -r jre-17-slim.zip jre17-slim

bootstrap

@@ -2,4 +2,4 @@
 
 #export _JAVA_OPTIONS="-XX:+TieredCompilation -XX:TieredStopAtLevel=1"
 
-/opt/jdk/bin/java -cp aws-lambda-java-runtime-interface-client-1.1.0.jar com.amazonaws.services.lambda.runtime.api.client.AWSLambda "$_HANDLER"
+/opt/jre17-slim/bin/java --add-opens java.base/java.util=ALL-UNNAMED -cp "/opt/aws-lambda-java-runtime-interface-client-1.1.0.jar:/opt/aws-lambda-java-core-1.2.1.jar:/opt/aws-lambda-java-serialization-1.0.0.jar:$LAMBDA_TASK_ROOT:$LAMBDA_TASK_ROOT/*:$LAMBDA_TASK_ROOT/lib/*" com.amazonaws.services.lambda.runtime.api.client.AWSLambda "$_HANDLER"

build-jre.sh

@@ -0,0 +1,2 @@
+docker build --progress=plain -t graalvm-al2-slim .
+docker run -v $(pwd)/layer:/tmp -it graalvm-al2-slim sh -c "cp /opt/jre-17-slim.zip /tmp"

make-layer.sh

@@ -3,7 +3,8 @@
 # -4 IPv4 only
 # -L follow redirect if the server responds with a redirect
 
-curl -4 -L https://builds.shipilev.net/openjdk-jdk17/openjdk-jdk17-linux-x86_64-server-release.tar.xz | tar -xvz
 curl -4 -L https://repo.maven.apache.org/maven2/com/amazonaws/aws-lambda-java-runtime-interface-client/1.1.0/aws-lambda-java-runtime-interface-client-1.1.0.jar -o aws-lambda-java-runtime-interface-client-1.1.0.jar
+curl -4 -L https://repo.maven.apache.org/maven2/com/amazonaws/aws-lambda-java-core/1.2.1/aws-lambda-java-core-1.2.1.jar -o aws-lambda-java-core-1.2.1.jar
+curl -4 -L https://repo.maven.apache.org/maven2/com/amazonaws/aws-lambda-java-serialization/1.0.0/aws-lambda-java-serialization-1.0.0.jar -o aws-lambda-java-serialization-1.0.0.jar
 
-chmod 755 bootstrap && zip -r java17layer.zip jdk bootstrap aws-lambda-java-runtime-interface-client-1.1.0.jar
+chmod 755 bootstrap && zip -r java17layer.zip jre17-slim bootstrap aws-lambda-java-runtime-interface-client-1.1.0.jar aws-lambda-java-core-1.2.1.jar aws-lambda-java-serialization-1.0.0.jar