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Add docker-images: one Spring Boot 4 service packaged nine ways

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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
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asmhatre
2026-09-11 17:11:46 +00:00
co-authored by Claude Opus 5
parent 86246dc860
commit 644da9e65e
52 changed files with 1308 additions and 1 deletions
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docker-images/docker/Dockerfile.aot-cache-mismatch
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# 7b. A trap: the AOT cache from image 7, run by a different JVM build (distroless ships Temurin
# 25.0.4.1, the cache was trained on 25.0.4). What happens when a base-image bump changes the JVM
# under a cache built earlier - measured in docs/06-aot-cache.md.
FROM sbd/docker-images:aot-cache AS trained
FROM gcr.io/distroless/java25-debian13:nonroot
WORKDIR /application
COPY --from=trained /application/ ./
ENTRYPOINT ["java", "-XX:AOTCache=app.aot", "-jar", "application.jar"]