Jdeps, Jlink and Layers: Slim Down Your Java Docker Images
summary
Shows how to shrink Java Docker images by creating a custom runtime with jdeps and jlink, using Docker layer best practices and Spring-specific layered jars, and leveraging Docker’s garbage-collection cleanup. Also covers pitfalls to watch for (especially reflection-related API issues) and targets intermediate Java/Docker users with practical, accessible techniques.
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chapters (15)
- 0:00Introduction
- 2:30Storage quota problem
- 5:17Dockerfile analysis
- 8:27JDEPS for modules
- 9:10JLink optimization
- 10:55Multistage build
- 12:41JDEPS and JLink in Dockerfile
- 15:51Results and size
- 16:12Docker layers
- 20:06Spring Boot layers
- 24:37Dockerfile order
- 27:27GC effects
- 31:19Reflection risks
- 34:29Missing modules
- 34:49Conclusion
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