Docker Who: Small Containers Through Time and Space
summary
BellSoft ships Alpine musl OpenJDK builds that land upstream via the Portola work (JEP 386 merged around JDK 16) so official HotSpot binaries run on musl; base container images drop under <100 MB, yielding pulls in seconds versus ~250 MB transferred / ~475 MB uncompressed for typical JDK 17 images. Practical notes: JNI and native libs require cross‑toolchains, ld_preload and W^X security settings behave differently, add fonts or libnsl for headless work, and a glibc compatibility layer (+24 MB) is optional when needed.
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chapters (6)
- 0:00Start
- 10:02Optimize Base. Size Smaller JRE
- 17:18Libc implementations
- 24:21JNI. Cross Build
- 25:22Project Portola. Issues
- 34:19Cheat Sheet
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