FROM ubuntu:20.04 as downloader ARG jdk=16 ADD provision/jdk/java-${jdk}.sh provision/jdk/java-${jdk}.sh RUN provision/jdk/java-${jdk}.sh ARG lombokjar=lombok.jar ADD https://projectlombok.org/downloads/${lombokjar} /lombok.jar ARG gradle=6.8.3 ADD provision/gradle/gradle-${gradle}.sh provision/gradle/gradle-${gradle}.sh RUN provision/gradle/gradle-${gradle}.sh FROM ubuntu:20.04 COPY --from=downloader /opt/gradle/ /opt/gradle/ COPY --from=downloader /opt/jdk/ /opt/jdk/ RUN update-alternatives --install /usr/bin/java java /opt/jdk/bin/java 1000 && update-alternatives --install /usr/bin/javac javac /opt/jdk/bin/javac 1000 && update-alternatives --install /usr/bin/javadoc javadoc /opt/jdk/bin/javadoc 1000 && update-alternatives --install /usr/bin/javap javap /opt/jdk/bin/javap 1000 WORKDIR workspace ADD shared/ ./ ADD gradle/files/ ./ COPY --from=downloader /lombok.jar /workspace/classpath/lombok.jar COPY --from=downloader /lombok.jar /workspace/modules/lombok.jar ARG jdk=16 ENV JDK_VERSION=${jdk} ENV JAVA_HOME=/opt/jdk ENV GRADLE_HOME=/opt/gradle/gradle ENV PATH="${JAVA_HOME}/bin:${GRADLE_HOME}/bin:${PATH}" ENTRYPOINT bash