Holland is a backup framework developed and maintained by Zendesk that provides a pluggable architecture for implementing multiple backup solutions. Written in Python, the framework is designed to be flexible and extensible, allowing different backup implementations to be integrated as plugins rather than being hardcoded into the core system. This modular approach enables users to choose and combine backup strategies suited to their specific infrastructure and data protection requirements.
The core component, holland-core, is licensed under the New-BSD three-clause license, making it suitable for both open-source and commercial use. The framework bundles several third-party libraries and backports from the Python standard library to ensure compatibility and functionality across different Python versions. These bundled components include ConfigObj 4.6 for configuration file handling, as well as backports of logging, subprocess, zipfile, and optparse modules from the Python standard library. Each of these dependencies maintains its own respective license, with comprehensive licensing information documented in the repository's LICENSE file.
The repository is hosted on GitHub under the Zendesk organization and maintains an active project homepage at hollandbackup.org, which serves as the primary resource for documentation and user information. The framework's design philosophy centers on providing a stable, extensible foundation that backup implementations can build upon, rather than attempting to handle all backup scenarios within a single monolithic codebase.
As a backup framework, Holland addresses the common challenge of managing diverse backup requirements across different systems and data types. By supporting pluggable implementations, it allows organizations to standardize on a single framework while maintaining flexibility in how backups are actually performed. This could encompass different database backup strategies, filesystem backup approaches, or cloud storage integrations, each implemented as a separate plugin that conforms to the framework's interface.
The project's presence on GitHub indicates active development and community engagement, with the repository serving as the central location for source code, issue tracking, and collaboration. The use of Python as the primary language makes the framework accessible to a wide range of developers and system administrators, as Python is commonly used in infrastructure automation and system administration tooling.
The inclusion of backported standard library components suggests that Holland was designed with compatibility in mind, potentially supporting multiple Python versions or providing consistent behavior across different Python installations. This approach to dependency management demonstrates a commitment to reducing external dependencies while maintaining access to necessary functionality.
Holland represents Zendesk's contribution to the open-source backup and disaster recovery ecosystem, providing infrastructure teams with a foundation for building reliable, customizable backup solutions. The framework's modular design and permissive licensing make it suitable for integration into various backup strategies, from small-scale deployments to enterprise-level infrastructure management systems.
