Dockerfile.hello-java.openjdk-15-alpine-jlink.alpine

FROM openjdk:15-alpine
RUN apk add binutils # for objcopy, needed by jlink
COPY hello.java .
RUN javac hello.java
RUN jdeps --print-module-deps hello.class > java.modules
RUN jlink --strip-debug --add-modules $(cat java.modules) --output /java

FROM alpine
COPY --from=0 /java /java
COPY --from=0 hello.class .
CMD exec /java/bin/java -cp . hello