Using openjdk headless

[Rodolphe Quiédeville]

Hi,

I've successfuly rebuild all the docker images using java-21-openjdk-headless instead of java-21-openjdk  in the Base image, with a final result of smaller image by 400MB.

I tested debezium connect with a postgresql connector as source on 3.1 version.

I did not find any subject related to this in previous discussion, hope I did not miss one.

What do you think to reduce the siae of the image but also depencies loaded by using the headless version ?

Best

[jiri.p...@gmail.com]

Hi,

I don't think it is an issue. IIRC we've just never optimized the image.

Jiri

[Rodolphe Quiédeville]

Hi,

Thanks for your reply, I'm working on the optimisation for now and trying to follow some other ideas like using a JRE instead of JDK and building on Alpine instead of Fedora to reduce the number of CVE alerts when scanning the image. Let me finish this work and I'll make some suggestions.

Best

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[Gunnar Morling]

Hey,

Using java-21-openjdk-headless sounds reasonable and I think that would be a welcomed change; but I'd advise against moving to Alpine, there have been reports in the past that its libc implementation isn't fully compatible, causing some issues. I don't know the specific details, but I'd be wary of chasing all sorts of odd bugs due to that.

--Gunnar

[jiri.p...@gmail.com]

Hi,

I agree on this one. WFRT CVEs - it should be enough to upgrade `base` image to latest Fedora.

Jiri