Docker-specific Refactorings & Technical debts

Docker-based containerization has become the standard for modern software deployment, enabling scalable and efficient application management. However, containerized projects, relying on Docker and Docker-Compose configurations, often accumulate technical debt and require systematic refactoring to maintain quality. To facilitate research and industry practices in addressing these challenges, we introduce DockerRefactorDB, a comprehensive dataset containing 1,214 refactoring instances identified across 443 open-source Docker projects. This dataset catalogs 41 Docker-specific refactoring types and 9 categories of technical debt, offering a structured repository of real-world refactoring patterns. DockerRefactorDB provides valuable insights for software engineers, researchers, and tool builders, supporting the development of best practices, automated refactoring tools, and strategies to improve the maintainability of containerized applications.