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MINOR: Allow overriding the base image of the JVM Docker image - #23560

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see-quick wants to merge 1 commit into
apache:trunkfrom
see-quick:docker-base-image-arg
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see-quick wants to merge 1 commit into
apache:trunkfrom
see-quick:docker-base-image-arg

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@see-quick

@see-quick see-quick commented Sep 23, 2026

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Makes the jvm images base image overridable (--base-image, default
unchanged), so it can be built on JDK 25 or an own Alpine JRE image
without forking the Dockerfile.

Checked by building on the default base (JDK 21) and on
temurin:25-jre-alpine; the generated Docker Official Image source is
byte-identical to trunk.

Signed-off-by: see-quick <maros.orsak159@gmail.com>
@see-quick see-quick self-assigned this Sep 23, 2026
@github-actions github-actions Bot added triage PRs from the community docker Official Docker image small Small PRs labels Sep 23, 2026
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