feat(clickhouse): Add ClickHouse with Http port

[janeklb]

Motivation

The official ClickHouse java client (https://github.com/ClickHouse/clickhouse-java) offers both JDBC and HTTP interfaces; however, testcontainers-java only offers an option for JDBC clients.

Modifications

• Add ClickHouseHttpContainer
• Add ClickHouseHttpContainerTest

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Generated by Claude Code based on the following prompt (typo and all!):

Please add an http-based container for ClickHouse. It should live alongside the existing jdbc-based ClickHouse conatiner; however, it should follow the same kind of patterns that other http-based containers apply.

Click to see Claude Code's generated work summary

Summary

I have successfully implemented an HTTP-based ClickHouse container for Testcontainers alongside the existing JDBC-based container. Here's what was created:

Files Created:

1. ClickHouseHttpContainer.java - The main HTTP-based container class that:
   • Extends GenericContainer instead of JdbcDatabaseContainer
   • Provides HTTP-specific methods like getHttpUrl(), getHttpHostAddress(), etc.
   • Uses the same Docker image and wait strategy as the JDBC version
   • Supports custom credentials and database configuration
   • Exposes both HTTP (8123) and Native (9000) ports for flexibility
2. ClickHouseHttpContainerTest.java - Comprehensive test suite that includes:
   • Basic HTTP query execution
   • Custom credentials testing
   • URL method validation
   • Table creation and data insertion
   • Health check verification
   • Support for multiple ClickHouse versions

Key Features:

• HTTP API Access: Provides direct access to ClickHouse's HTTP interface for REST API calls
• Consistent Interface: Follows the same patterns as other HTTP-based containers in the codebase
• Full Compatibility: Uses the same Docker images and configuration as the JDBC version
• Comprehensive Testing: All 6 test scenarios pass, covering various use cases
• Proper Error Handling: Includes authentication and error response handling
• Documentation: Well-documented with Javadoc comments

Integration:

The HTTP-based container lives in the same package (org.testcontainers.clickhouse) as the existing JDBC container, allowing users to choose the appropriate approach for their use
case:

• JDBC Container - For traditional database connections with SQL drivers
• HTTP Container - For REST API access and direct HTTP query execution

Both containers can coexist and complement each other, providing flexibility for different testing scenarios and development patterns.