Merge pull request #393 from jhuttana/multi-stage-jlink-dev

[OPENJDK-2063] Add dockerfile to do a multi-stage build for jlink JRE light weight container application

Author: jmtd

templates/jlink/Dockerfile

@@ -0,0 +1,36 @@
+#multi-stage build for jlinked application JAR and JRE
+
+#Stage-1:build application JAR and libraries
+#steps to build the application JAR and jlinked JRE
+#for time being using the image built by Jon
+FROM quay.io/jdowland/jlink:quarkus-getting-started AS ubi9-jlinked-image
+USER 0
+RUN mkdir -p /mnt/jrootfs
+RUN microdnf install dnf -y
+RUN dnf install --installroot /mnt/jrootfs grep gawk --releasever 9 --setopt install_weak_deps=false --nodocs -y;dnf clean all
+RUN rm -rf /mnt/jrootfs/var/cache/*
+RUN rm -rf /mnt/jrootfs/var/lib/rpm
+USER 185
+
+#Stage-2:copy application JAR and jlinked JRE to runtime image
+FROM registry.access.redhat.com/ubi9/ubi-micro AS lean-runtime
+
+COPY --from=ubi9-jlinked-image /mnt/jrootfs/ /
+COPY --from=ubi9-jlinked-image /deployments /deployments
+COPY --from=ubi9-jlinked-image /tmp/jre /usr/lib/jvm/java
+COPY --from=ubi9-jlinked-image /opt/jboss/container/java/run/run-java.sh /opt/jboss/container/java/run/run-java.sh
+COPY --from=ubi9-jlinked-image /opt/jboss/container/util/logging/logging.sh /opt/jboss/container/util/logging/logging.sh
+COPY --from=ubi9-jlinked-image /opt/jboss/container/java/run/run-env.sh /opt/jboss/container/java/run/run-env.sh 
+RUN ls -LR /opt/jboss/container/
+
+ENV JAVA_HOME="/usr/lib/jvm/java"
+RUN echo $JAVA_HOME
+
+ENV PATH="$JAVA_HOME/bin/:$PATH"
+RUN echo $PATH
+
+ENV JBOSS_CONTAINER_UTIL_LOGGING_MODULE=/opt/jboss/container/util/logging
+ENV JBOSS_CONTAINER_JAVA_RUN_MODULE=/opt/jboss/container/java/run
+
+CMD /opt/jboss/container/java/run/run-java.sh
+