Capistrano is a Ruby-based release manager and remote server orchestrator. It uses SSH to push code updates and execute a standardized sequence of deployment tasks across a fleet of remote machines.
The tool distinguishes itself through role-based server targeting and parallel connection pooling, allowing users to assign functional labels to servers and execute commands across multiple machines simultaneously. It manages multiple environments by applying a single deployment definition across different stages through parameter-based mapping.
The system provides a framework for remote task execution and source code version management. Its capabilities are further extended via a plugin-based system and a dependency-driven task runner to support custom deployment logic and specific application frameworks.