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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
This commit is contained in:
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/docs/output/image-store-size-difference.txt
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# The same eleven images, loaded from the same tarballs, listed by `docker images` under the two
# Docker Engine 29.4.3 image stores. Captured once by hand (switching stores needs a daemon
# restart); the commands are in docs/02-measuring-size.md.
## containerd image store (daemon.json: {"features":{"containerd-snapshotter":true}} - the default for new installs)
REPOSITORY:TAG IMAGE ID SIZE
paketobuildpacks/ubuntu-noble-run-tiny:latest 5fb8a81f3f56 38.7MB
eclipse-temurin:25-jre 211325bca3fd 496MB
eclipse-temurin:25-jdk 00eacca34899 608MB
eclipse-temurin:25-jre-alpine 31a7faf76302 305MB
bellsoft/liberica-openjre-debian:25-cds 78b8d1ba9172 505MB
quay.io/prometheus/prometheus:v3.14.0 0230c2ba4c1c 372MB
busybox:1.37 e0b4f7eca906 6.77MB
registry.k8s.io/prometheus-adapter/prometheus-adapter:v0.12.0 b8e2bc8f8de9 131MB
paketobuildpacks/builder-noble-java-tiny:latest b54d7bce7d3c 1.26GB
gcr.io/distroless/java-base-debian13:nonroot fe682f609c79 43.1MB
gcr.io/distroless/java25-debian13:nonroot 3ad8b3cc79ab 305MB
## classic overlay2 store (daemon.json: {"features":{"containerd-snapshotter":false}})
REPOSITORY:TAG IMAGE ID SIZE
paketobuildpacks/ubuntu-noble-run-tiny:latest 3f2697c8829c 24.9MB
eclipse-temurin:25-jre a33388e97452 352MB
eclipse-temurin:25-jdk ca0436742d32 430MB
eclipse-temurin:25-jre-alpine 0988c057a1e4 226MB
bellsoft/liberica-openjre-debian:25-cds aea7393405da 356MB
quay.io/prometheus/prometheus:v3.14.0 31c1e0aacb3a 261MB
busybox:1.37 db287cb6be81 4.42MB
registry.k8s.io/prometheus-adapter/prometheus-adapter:v0.12.0 3bba96c2e4e6 89.3MB
paketobuildpacks/builder-noble-java-tiny:latest d835ec7c8f6e 868MB
gcr.io/distroless/java-base-debian13:nonroot 9bc10980a41f 26.5MB
gcr.io/distroless/java25-debian13:nonroot be8c5fbd580c 226MB