fierzone Spring Boot Deployment Standards
Priority: P0
Implementation Guidelines
GraalVM Native Images (AOT)
- Use Case: Serverless/CLI tools requiring instant startup.
- Constraints: Register reflection via Runtime Hints. Libraries must be compatible.
- Build: Use
bootBuildImage(Gradle) orspring-boot:build-image(Maven).
Containerization (Docker)
- Layered JAR: Use standard Layered JAR support to optimize caching.
- Security: Run as non-root user (
nobodyorappuser). - Memory: Set JVM limits proportional to container (
-XX:+UseContainerSupport).
Graceful Shutdown
- Enable:
server.shutdown=graceful(default 30s timeout). - Process: Stops accepting new requests, processes active ones.
Anti-Patterns
- Fat JAR:
**No Fat JARs in Docker**: Use layers. - Root User:
**No Root**: Use restricted user. - Baked Config:
**No Baked Secrets**: Use Env/ConfigMaps.
References
- Implementation Examples