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asmhatreandClaude Opus 5 644da9e65e Add docker-images: one Spring Boot 4 service packaged nine ways
Companion code for "Dockerizing Spring Boot 4: Layered Jars, Buildpacks,
Distroless and Image Size Benchmarks". Fat jar on JDK and JRE, layered jar
on Debian, Alpine and distroless, jlink, the JDK 25 AOT cache, Paketo
buildpacks and Jib, each measured for size on disk and pushed, rebuild
delta, startup, user and shell. Also PID 1 and signal handling, the jdeps
module gap, AOT cache mismatches and buildpacks memory calculation.
Transcripts in docs/output/, regenerated by scripts/run-all.sh.

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01C3TETMrqVUWeFkNtz3Jbo3
2026-09-11 17:11:46 +00:00

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Docker

# 2. Same, on the JRE image. Smaller base, but every code change still re-ships the whole fat jar.
FROM eclipse-temurin:25-jre
COPY target/app.jar /app/app.jar
ENTRYPOINT ["java", "-jar", "/app/app.jar"]