Skip to main content

Architecture

Overview​

OpenProject 15.0.0 is an open-source project management software that supports agile project management, traditional project management, and hybrid methodologies. It provides comprehensive features for project planning, team collaboration, time tracking, and reporting.

Core Components​

Application Layer​

  • Ruby on Rails Framework: Core application framework (Rails 7.0+)

  • Angular Frontend: Modern web interface with responsive design

  • API Gateway: RESTful API for external integrations

  • Background Job Processing: Sidekiq for asynchronous task processing

Database Layer​

  • PostgreSQL: Primary database (version 13+)

  • Redis: Caching and session storage

  • File Storage: Local filesystem or S3-compatible storage

  • Search Engine: Full-text search capabilities

Infrastructure Components​

  • Web Server: Nginx or Apache (reverse proxy)

  • Application Server: Puma (Ruby application server)

  • Process Manager: Systemd or Docker orchestration

  • Message Queue: Redis-based job queue

System Architecture​

┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐ │ Load Balancer │ │ Web Server │ │ Application │ │ (Nginx/HAProxy│◄──►│ (Nginx/Apache)│◄──►│ Server (Puma) │ └─────────────────┘ └─────────────────┘ └─────────────────┘ │ ┌─────────────────┐ │ │ Redis Cache │◄───────────┤ │ (Sessions) │ │ └─────────────────┘ │ │ ┌─────────────────┐ │ │ PostgreSQL │◄───────────┤ │ Database │ │ └─────────────────┘ │ │ ┌─────────────────┐ │ │ File Storage │◄───────────┘ │ (Local/S3) │ └─────────────────┘

Deployment Patterns

Single Server Deployment​

  • All components on single server

  • Suitable for small teams (up to 50 users)

  • Simplified maintenance and backup

Multi-Server Deployment​

  • Separate database and application servers

  • Horizontal scaling capabilities

  • Load balancing and high availability

Container Deployment​

  • Docker-based deployment

  • Kubernetes orchestration

  • Microservices architecture support

Cloud Deployment​

  • AWS/Azure/GCP compatible

  • Auto-scaling capabilities

  • Managed database services integration