A universal process manager built in Deno to keep scripts, applications, and services alive across platforms.
Pup is a universal process manager built in Deno that keeps scripts, applications, and services alive across different platforms and languages. It solves the problem of managing and ensuring the reliability of long-running processes, providing features like autostart, cron scheduling, and clustering. It is designed to be a cross-platform alternative to traditional process managers, with extensibility through plugins.
Developers and system administrators who need to manage and monitor processes for applications written in Deno, Node.js, Python, or Ruby across Windows, macOS, and Linux. It is especially useful for those deploying services that require high availability and easy management.
Developers choose Pup for its cross-platform compatibility, built-in clustering and load balancing, and extensible plugin system. Its ability to integrate as a system service and provide a REST API for programmatic control offers a flexible and powerful alternative to other process managers.
Universal process manager built in Deno
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Manages processes for Deno, Node.js, Python, and Ruby on Windows, macOS, and Linux, offering a universal solution without stack lock-in.
Provides clustering and load balancing out of the box, enabling seamless application scaling as highlighted in the key features.
Supports custom plugins like the web interface for graphical management, allowing tailored integrations and enhanced functionality.
Can be installed as a system service on sysvinit, systemd, upstart, macOS, and Windows, ensuring high availability and easy control.
Includes a REST API for programmatic monitoring and management, facilitating third-party integrations and automation.
Process telemetry and IPC are only available for Deno client processes, restricting advanced features for other languages like Python or Ruby.
Built-in plugins such as the web interface do not work with canary releases, limiting functionality for early adopters seeking the latest versions.
Automated installation on Windows can fail, requiring manual steps as noted in the quick start guide, adding complexity to deployment.
The stable release channel is currently empty, posing a risk for production environments that rely on proven, stable versions for critical deployments.
pup is an open-source alternative to the following products:
systemd is a system and service manager for Linux operating systems that provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, and offers on-demand starting of daemons.
PM2 is a production process manager for Node.js applications that helps manage and keep applications online with features like load balancing, monitoring, and zero-downtime reloads.
Forever is a Node.js utility that ensures a given script runs continuously as a daemon service, restarting it if it crashes.