Add OpenJDK port for Linux/x64 with musl

[aahlenst]

Portola (porting OpenJDK to Linux/x64 with musl instead of glibc) seems to approach the finish line: JEP 386 is now a candidate and Oracle/OpenJDK has started to offer builds for Alpine beginning with 16. This means it is (a) time for the TSC to formally vote whether we want to add that port and (b) start coordinating the work to get it done (under the provision that the TSC approves).

Required work:

• Build and produce binary tarballs of 16 and newer on Alpine/x64 with musl build: add alpine musl builds adoptium/temurin-build#2026
• Mirror https://github.com/openjdk/portola into AdoptOpenJDK
• Create docker image for build/test ansible: add alpine build image adoptium/infrastructure#1496
• Test 16 and newer on Alpine/x64
• Add separate Docker images of Alpine/x64 with OpenJDK with musl (we already have a version with glibc)
• Create APK for Alpine/x64
• Create package repository for Alpine/x64 if package cannot be integrated into Alpine's community repository

[gdams]

Mirrored into https://github.com/AdoptOpenJDK/openjdk-portola

[gdams]

Add separate Docker images of Alpine/x64 with OpenJDK with musl (we already have a version with glibc)

@aahlenst to this point, I think that with JDK15+ we should just ship a musl image for alpine (no glibc version).

CC @dinogun??

[gdams]

https://openjdk.java.net/jeps/386 has now been marked as a Candidate for JDK16

[gdams]

builds are now being produced: https://ci.adoptopenjdk.net/job/build-scripts/job/jobs/job/jdk/job/jdk-alpine-linux-x64-hotspot/

I'll now work with @smlambert to enable testing

[eshepelyuk]

Hi all
What is a current milestone for Docker images to be publicly available at Dockerhub ?