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[SPARK-60639][DOCKER] Publish Apache Spark 4.2.1 to docker registry
Nit: I don't think any PR in spark-docker uses [DOCKER] tag in PR title
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### What changes were proposed in this pull request? Publish Apache Spark 4.3.0 to the Docker registry: - Generate Scala 2.13 images for Java 17, 21, and 25, with Scala, Python, R, and Python/R variants. - Register the 4.3.0 release signing key and add the build/test workflow. - Add 4.3.0 to the publish/test workflows and make it the default version. - Add versioned image tags and move the floating tags, including `latest`, from 4.2.1 to 4.3.0. The Dockerfiles and entrypoints are generated using `./add-dockerfiles.sh 4.3.0`. ### Why are the changes needed? Apache Spark 4.3.0 has been released: - https://github.com/apache/spark/releases/tag/v4.3.0 - https://spark.apache.org/docs/4.3.0/ - https://dist.apache.org/repos/dist/release/spark/spark-4.3.0/ This follows the release publication changes in #141 for Spark 4.2.1. ### Does this PR introduce _any_ user-facing change? Yes. Adds Spark 4.3.0 image tags and updates the floating tags to use 4.3.0. ### How was this patch tested? - Generated all 12 image variants with `./add-dockerfiles.sh 4.3.0`. Apart from the version and the GPG key, they are identical to the 4.2.1 variants. - Checked the release signature's issuer fingerprint (`FD3E84942E5E6106235A1D25BD356A9F8740E4FF`) against Apache Spark KEYS and the public keyserver. - Compared the full diff with #141 after normalizing version strings. Only the GPG key and surrounding context lines differ. - Validated JSON/YAML, unique image tags, preservation of existing versioned tags, floating tag ownership (all on 4.3.0), and workflow matrices/defaults. - Checked all three generated entrypoints with `bash -n` and verified their executable permissions. - Ran the manifest tag generator and `git diff --check`. - Built `4.3.0/scala2.13-java17-ubuntu` locally with `docker build` (including GPG and SHA-512 verification of the release tarball). Then ran: - `spark-submit --version`: reports Spark 4.3.0, Scala 2.13.18, OpenJDK 17.0.21. - `run-example SparkPi 10`: prints `Pi is roughly 3.1409...`. The other image builds and the standalone/Kubernetes integration tests will run through the new Java 17/21/25 CI matrix. ### Was this patch authored or co-authored using generative AI tooling? Generated-by: Claude Code (Claude Opus 5.5) Closes #143 from HeartSaVioR/spark-4.3.0-docker. Authored-by: Jungtaek Lim <kabhwan.opensource@gmail.com> Signed-off-by: Jungtaek Lim <kabhwan.opensource@gmail.com>
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What changes were proposed in this pull request?
Publish Apache Spark 4.2.1 to the Docker registry:
latest, to 4.2.1.The Dockerfiles and entrypoints are generated using
./add-dockerfiles.sh 4.2.1.Why are the changes needed?
Apache Spark 4.2.1 has been released:
This follows the release publication changes in #139 for Spark 4.1.4.
Does this PR introduce any user-facing change?
Yes. Adds Spark 4.2.1 image tags and updates the floating tags to use 4.2.1.
How was this patch tested?
./add-dockerfiles.sh 4.2.1.bash -nand verified their executable permissions.git diff --check.Docker is unavailable locally. Image builds and standalone/Kubernetes integration tests will run through the new Java 17/21/25 CI matrix.
Was this patch authored or co-authored using generative AI tooling?
Generated-by: Codex (GPT-6)