Add GraalVM native image support with Dockerfile and updated Docker CI workflow

[devin-ai-integration]

Summary

Adds GraalVM native image support for the images service, following the same multi-stage build pattern as geo.

Dockerfile-GraalVM — 3-stage build: Maven package (-P native) → GraalVM 24 native-image compilation → minimal Ubuntu 24.10 runtime. Environment variables and entrypoint arguments are carried over from the existing Dockerfile.

.github/workflows/docker-image.yml — Updated to build both default and GraalVM Docker images on release. GraalVM image tagged graalvm + latest. Also added workflow_dispatch trigger. The default JVM image is now tagged only with the release version (no longer latest).

Review & Testing Checklist for Human

• AWT / ImageIO compatibility with GraalVM native image: This project uses BufferedImage, imgscalr, and ImageIO for image processing. AWT classes are notoriously problematic in GraalVM native images and typically require additional flags (e.g. -H:+UnlockExperimentalVMOptions, -H:+AddAllCharsets) or AOT resource/reflection hints. A test build of Dockerfile-GraalVM is strongly recommended — the native-image step may fail or produce a binary that crashes at runtime on image operations.
• latest tag moved from JVM to GraalVM: The previous workflow tagged the JVM image as latest. Now only the GraalVM image gets latest. If any deployment pulls wilddev/images:latest expecting a JVM-based image, this is a breaking change.
• EXTRA_ARGS not declared as ENV: The entrypoint references $EXTRA_ARGS but no ENV EXTRA_ARGS='' is set (consistent with geo's GraalVM Dockerfile, but differs from this repo's existing Dockerfile which declares it). Verify this doesn't cause issues when the variable is unset.
• JAVA_OPTS default changed: Existing Dockerfile uses -Xmx512M; the GraalVM version uses '-Xms32M -Xmx512M'. These are passed as bare CLI args to the native binary — confirm these flags are recognized or silently ignored by the GraalVM native executable.

Recommended test plan: Build the GraalVM image locally with docker build -f Dockerfile-GraalVM . and verify (1) the native-image compilation succeeds, and (2) the resulting binary can start up and process an image upload against a local MongoDB/RabbitMQ stack.

Notes

• No AOT runtime hints were added. The geo project required extensive Caffeine reflection hints; this project may need hints for AWT, ImageIO, and imgscalr.
• ubuntu:24.10 is used as the runtime base (non-LTS, consistent with geo).
• The maven.yml workflow was not modified.

Link to Devin session: https://app.devin.ai/sessions/90a2213da9af472db1175be1b03d5b5d
Requested by: @WildDev

[devin-ai-integration]

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