feat(docker): add --multi-arch flag for cross-platform image builds

[yihua]

Describe the issue this Pull Request addresses

The current Docker build script only supports one architecture based on the local hardware.

Closes: #18517

Summary and Changelog

• Add --multi-arch flag to build_docker_images.sh for building both linux/amd64 and linux/arm64 images via docker buildx
• Without the flag, behavior is unchanged (builds for local architecture only)
• Multi-arch builds push directly to the registry since buildx cannot load multi-platform images into the local daemon

Usage:

# Local build (unchanged)
./build_docker_images.sh --hadoop-version 3.4.0 --spark-version 4.0.1 --hive-version 3.1.3

# Multi-arch build + push
./build_docker_images.sh --hadoop-version 3.4.0 --spark-version 4.0.1 --hive-version 3.1.3 --multi-arch

Requires a multi-platform buildx builder and docker login:

docker buildx create --name multiarch --driver docker-container --use

Impact

Makes test docker image generation easier from Macbook

Risk Level

none

Documentation Update

Usage docs updated in the script

Contributor's checklist

• Read through contributor's guide
• Enough context is provided in the sections above
• Adequate tests were added if applicable

[yihua]

🤖 This review was generated by an AI agent and may contain mistakes. Please verify any suggestions before applying.

No reviewable code files in this PR.

[hudi-bot]

CI report:

• 67060a5 Azure: PENDING

Bot commands

@hudi-bot supports the following commands:

• @hudi-bot run azure re-run the last Azure build

[voonhous]

LGTM!

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.87%. Comparing base (a369773) to head (67060a5).
⚠️ Report is 5 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master   #18522      +/-   ##
============================================
+ Coverage     68.84%   68.87%   +0.03%     
- Complexity    28250    28287      +37     
============================================
  Files          2464     2464              
  Lines        135442   135568     +126     
  Branches      16417    16443      +26     
============================================
+ Hits          93239    93372     +133     
+ Misses        34821    34806      -15     
- Partials       7382     7390       +8     

Flag	Coverage Δ
common-and-other-modules	44.64% <ø> (+0.06%)	⬆️
hadoop-mr-java-client	44.75% <ø> (-0.06%)	⬇️
spark-client-hadoop-common	48.40% <ø> (-0.05%)	⬇️
spark-java-tests	48.91% <ø> (-0.02%)	⬇️
spark-scala-tests	45.43% <ø> (-0.04%)	⬇️
utilities	38.19% <ø> (+<0.01%)	⬆️

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see 13 files with indirect coverage changes

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