JRE 11 Docker file

Dockerfile

# reference https://stackoverflow.com/questions/53669151/java-11-application-as-lightweight-docker-image

FROM alpine:latest as builder

RUN apk --no-cache add openjdk11-jdk openjdk11-jmods

ENV JAVA_MINIMAL="/opt/java-minimal"

# build minimal JRE
RUN /usr/lib/jvm/java-11-openjdk/bin/jlink \
    --verbose \
    --add-modules \
        java.base,java.sql,java.naming,java.desktop,java.management,java.security.jgss,java.instrument \
    --compress 2 --strip-debug --no-header-files --no-man-pages \
    --release-info="add:IMPLEMENTOR=Karthik:IMPLEMENTOR_VERSION=jre-11" \
    --output "$JAVA_MINIMAL"

FROM alpine:latest

ENV JAVA_HOME=/usr/lib/jvm/java-11-openjdk
ENV PATH="$PATH:$JAVA_HOME/bin"

COPY --from=builder /opt/java-minimal "$JAVA_HOME"