java-tutorials/docker-modules/docker-caching/multi-module-caching/Dockerfile-Buildkit

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FROM maven:alpine as build
ENV HOME=/usr/app
RUN mkdir -p $HOME
WORKDIR $HOME
ADD . $HOME
RUN --mount=type=cache,target=/root/.m2 mvn -f $HOME/pom.xml clean package
FROM openjdk:8-jdk-alpine
COPY --from=build /usr/app/runner/target/runner-0.0.1-SNAPSHOT-jar-with-dependencies.jar /app/runner.jar
ENTRYPOINT java -jar /app/runner.jar