# 3. Spring Boot's layered extraction: dependencies, loader, snapshots and your code become four
#    separate layers, ordered from least to most likely to change.
FROM eclipse-temurin:25-jre AS builder
WORKDIR /builder
COPY target/app.jar application.jar
RUN java -Djarmode=tools -jar application.jar extract --layers --destination extracted

FROM eclipse-temurin:25-jre
WORKDIR /application
COPY --from=builder /builder/extracted/dependencies/ ./
COPY --from=builder /builder/extracted/spring-boot-loader/ ./
COPY --from=builder /builder/extracted/snapshot-dependencies/ ./
COPY --from=builder /builder/extracted/application/ ./
ENTRYPOINT ["java", "-jar", "application.jar"]