mengw15 opened a new pull request, #4272:
URL: https://github.com/apache/texera/pull/4272
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### What changes were proposed in this PR?
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This is PR 1 of a decomposed series from #4242, focusing on the core Iceberg
catalog migration to support Lakekeeper as a
REST catalog.
**Scala changes:**
- `IcebergUtil.scala`: added `createRestCatalog()` for REST catalog
connections with S3FileIO (MinIO), and namespace auto-creation for all catalog
types
- `IcebergCatalogInstance.scala`: updated singleton to support REST
catalog type selection
- `IcebergTableWriter.scala`: updated for REST catalog compatibility
- `StorageConfig.scala` / `EnvironmentalVariable.scala`: added REST
catalog configuration (URI, warehouse name, region, S3
bucket) and environment variable support
- `storage.conf`: added REST catalog config section (default remains
`postgres` for backward compatibility)
- `build.sbt`: added `iceberg-aws`, AWS SDK dependencies, and Netty
version override for Arrow compatibility
- `PythonWorkflowWorker.scala` / `ComputingUnitManagingResource.scala`:
propagate REST catalog config to Python workers and
computing units
**Python changes:**
- `iceberg_catalog_instance.py` / `iceberg_utils.py`: added REST catalog
support via PyIceberg
- `storage_config.py`: added REST catalog configuration parsing
- `texera_run_python_worker.py`: accept REST catalog config from Scala side
- `requirements.txt`: upgraded PyIceberg (0.8.1 → 0.9.0), added
s3fs/aiobotocore for S3 access
**Database:**
- `texera_lakekeeper.sql`: schema for Lakekeeper's backing database
**Note:** This PR keeps `postgres` as the default catalog type in
`storage.conf`. Switching to REST catalog will be enabled
in subsequent deployment PRs.
### Any related issues, documentation, discussions?
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Part of #4126. Subsequent PRs will cover:
- Lakekeeper bootstrap script
- Single-node deployment
- Kubernetes deployment
- CI integration
### How was this PR tested?
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Manual
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co-authored with Claude
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