Add Iceberg Quickstart page

[ahmedabu98]

Adding an Iceberg quickstart page to the Beam website

Includes examples for Hadoop Catalog (easy local development) and BigLake (cloud-scale development)

Includes the following SDKs:

• SQL
• Java
• Python
• YAML

[gemini-code-assist]

Summary of Changes

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This pull request introduces a new Apache Iceberg quickstart page to the Beam website, significantly enhancing the documentation for data lake integration. It provides practical, multi-language code examples for common Iceberg operations, from catalog setup to data manipulation, ensuring users can quickly get started with Iceberg I/O in Beam. Additionally, the changes include necessary updates to the website's interactive components to better display and organize these new code snippets and structured content.

Highlights

• New Apache Iceberg Quickstart Page: A comprehensive quickstart guide for Apache Iceberg I/O has been added to the Beam website, providing detailed instructions and examples for integration.
• Java and Python Iceberg Examples: New code examples in both Java and Python demonstrate how to configure Iceberg catalogs (Hadoop and BigLake), create tables, insert data, and query data using Beam's managed I/O.
• Website UI Enhancements: The website's language switcher now supports SQL, and new generic tab and section shortcodes have been introduced to improve content organization and presentation for multi-language examples.
• Java SDK Dependency Update: The sdks:java:managed dependency was added to the Java examples build configuration to support the new managed I/O operations for Iceberg.

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Changelog

• examples/java/build.gradle
  • Added implementation project(":sdks:java:managed") dependency to support managed I/O.
• examples/java/src/main/java/org/apache/beam/examples/snippets/transforms/io/iceberg/IcebergBeamSchemaAndRow.java
  • New file: Defined Beam schemas and rows for various data types to demonstrate Iceberg compatibility.
• examples/java/src/main/java/org/apache/beam/examples/snippets/transforms/io/iceberg/Quickstart.java
  • New file: Provided Java quickstart examples for Iceberg, including Hadoop and BigLake catalog configurations, and managed write/read operations.
• sdks/python/apache_beam/examples/snippets/snippets.py
  • Added model_managed_iceberg function with Hadoop and BigLake catalog configurations, and managed write/read examples.
  • Added model_managed_iceberg_data_types function demonstrating various data types for Iceberg.
• website/www/site/assets/js/language-switch-v2.js
  • Added 'SQL' as a supported language for the valueToTabTitle function.
  • Initialized a new Switcher for generic tabs.
• website/www/site/assets/scss/_syntax-highlighting.scss
  • Added styling for .tab-switcher by extending .runner-switcher.
• website/www/site/content/en/documentation/io/built-in/iceberg.md
  • New file: The main Apache Iceberg I/O connector documentation page, including basics, quickstart guide (Hadoop and BigLake catalogs), and data type mappings across SQL, Java, Python, and YAML.
• website/www/site/layouts/partials/section-menu/en/documentation.html
  • Added "Apache Iceberg" to the I/O connector guides list.
  • Simplified titles for other I/O connectors (e.g., "Apache Parquet I/O connector" to "Apache Parquet").
• website/www/site/layouts/shortcodes/language-switcher.html
  • Added sql as a language option for the language switcher.
• website/www/site/layouts/shortcodes/section.html
  • New file: Defined a Hugo shortcode for creating a section HTML element with a customizable class.
• website/www/site/layouts/shortcodes/tab.html
  • New file: Defined a Hugo shortcode for creating a div element styled as a tab, used for content organization.

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[github-actions]

Assigning reviewers:

R: @jrmccluskey for label python.
R: @Abacn for label java.
R: @shunping for label website.

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[ahmedabu98]

Staged website:

http://apache-beam-website-pull-requests.storage.googleapis.com/37739/documentation/io/built-in/iceberg/index.html