Unitech/pm2
Pm2
This project is a Node.js process manager, runtime environment, and production deployment orchestrator. It provides the foundational system components required to run, monitor, and restart applications in the background to ensure continuous service availability.
The system distinguishes itself through a built-in load balancer that distributes network traffic across multiple process instances to utilize all available CPU cores. It includes a real-time process monitor with a terminal-based dashboard for tracking server health, CPU and memory usage, and aggregated logs.
The tool covers a broad range of server operations, including daemonization, automatic process restarts upon failure, and zero-downtime deployments. It manages resource usage through threshold-based memory restrictions and ensures server boot persistence by generating native system startup scripts. Additional capabilities include remote production deployment orchestration, cron-based restart scheduling, and log management with aggregated streaming.
Features
- Load Balancers - Distributes network traffic across multiple Node.js process instances to utilize all available CPU cores.
- Node.js Process Managers - Acts as a comprehensive process manager for Node.js applications, ensuring continuous availability through background daemonization and automatic restarts.
- Process Reboot Persistence - Generates system scripts to relaunch the process manager and its applications automatically after a server restart.
- Boot Script Generators - Creates initialization scripts for system managers to ensure processes start automatically when the server boots.
- Environment Variable Configurations - Defines environment variables and interpreter settings via command line flags or configuration files.
- Daemon Management - Runs applications as background daemons with continuous monitoring to ensure automatic restarts after failure.
- Node.js Runtimes - Provides a runtime environment to manage environment variables, memory limits, and custom interpreters for Node.js applications.
- Process Scaling - Scales the number of running process instances or utilizes cluster mode to match available CPU cores.
- Production Deployment Tools - Orchestrates the deployment of applications across multiple remote hosts using shared configuration files.
- Zero-Downtime Deployments - Updates application code by restarting instances sequentially to ensure continuous service availability.
- Process Replacement Strategies - Updates a running application by restarting processes sequentially to prevent service interruptions.
- Node.js Load Balancers - Includes a built-in load balancer that distributes network traffic across multiple process instances to utilize all available CPU cores.
- Startup Script Generators - Generates native init scripts to register the manager with the operating system for automatic boot-time execution.
- Log Aggregation - Collects and merges stdout and stderr streams from multiple background processes into a single timestamped view.
- Process Managers - Monitors active processes and restarts them automatically after a crash to maintain continuous service availability.
- Process Monitors - Runs a background watcher that monitors child process health and automatically restarts them upon failure.
- Deployment Orchestration - Orchestrates the deployment of applications across multiple remote hosts using shared configuration manifests.
- Containerized Runtimes - Provides a specialized runtime command optimized for executing processes within hardened production container environments.
- Process Grouping Utilities - Organizes applications into namespaces to perform bulk operations like restarting or filtering logs.
- Configuration Manifests - Uses centralized configuration files to define environment variables and process settings for consistent deployment.
- Inter-Process Communication - Implements a communication bridge allowing external terminal commands to trigger functions within background processes.
- Log Aggregators - Provides a system to stream and merge output from multiple background processes into a single time-stamped view.
- Log Management - Features a log management system for background process output with support for custom formats and log rotation.
- Real Time Process Monitors - Provides a real-time terminal-based dashboard for tracking process health, CPU, and memory usage.
- Real-Time Monitoring Dashboards - Ships a terminal-based dashboard for tracking real-time CPU and memory usage of active processes.
- Resource Monitoring - Tracks real-time server health including CPU usage, memory availability, disk activity, and network traffic.
- Resource Usage Restrictions - Automatically restarts processes when memory usage exceeds a predefined threshold to prevent system resource exhaustion.
- Startup Script Generators - Generates native system startup scripts to ensure the process manager and its applications launch automatically after a server reboot.
- Resource-Based Restarts - Monitors memory usage of child processes and triggers automatic restarts when predefined limits are reached.
- Deployment and Infrastructure - Production process manager for Node.js applications.
- Infrastrukturmanagement - Process manager for production applications.
- Process Management - Advanced process management.
- Node.js Frameworks and Tools - Process manager for Node.js applications.
