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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
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docker-images/scripts/env.sh
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#!/usr/bin/env bash
MODULE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
OUT="$MODULE_DIR/docs/output"
REGISTRY="${REGISTRY:-localhost:5000}" # any registry you can push to; see docs/02-measuring-size.md
REPO="$REGISTRY/sbd-docker-images"
mkdir -p "$OUT"
# Every variant the article measures, in the order the table lists them.
VARIANTS=(fatjar-jdk fatjar-jre layered-jre layered-alpine layered-distroless jlink-distroless aot-cache buildpacks jib)