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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/bindings/dependency-mapping/README.md
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# dependency-mapping binding
Used only with `-Pno-maven-central`. The file named
`32e47c2139d6379836910f0d1cc253a019ac282f3aeea12237069f00046279ad` - the sha256 the Spring Boot
buildpack 5.36.7 expects for Spring Cloud Bindings 2.0.4 - contains a `file://` URI pointing at a
local copy of that jar, so the build never contacts repo1.maven.org.
Run `../../scripts/fetch-buildpack-deps.sh` to download and verify the jar (it is git-ignored).
A newer buildpack version will expect a different jar and hash; read them from the builder's
`/cnb/buildpacks/paketo-buildpacks_spring-boot/<version>/buildpack.toml`.