283 lines
10 KiB
Markdown
283 lines
10 KiB
Markdown
# Nexus 6 - Rust Platform Rewrite
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The final evolution of the Nexus platform, completely rewritten in Rust for maximum performance, type safety, and reliability. This is a production-ready monorepo containing the Axum-based API, SvelteKit frontends, and infrastructure configuration.
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## Overview
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Nexus 6 represents the culmination of lessons learned from five previous iterations, now built on a rock-solid Rust foundation:
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- **Nexus 1-3**: Django + Graphene (Python)
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- **Nexus 4**: Rust experiment (abandoned)
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- **Nexus 5**: Django + Strawberry GraphQL (Python)
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- **Nexus 6**: Full Rust rewrite with Axum + async-graphql
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## Architecture
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```
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┌─────────────────────────────────────────────────────────────┐
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│ Clients │
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│ (Browser / Mobile / API Consumers) │
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└─────────────────────────┬───────────────────────────────────┘
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│
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┌─────────────────────────▼───────────────────────────────────┐
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│ Ory Oathkeeper │
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│ (API Gateway / Zero Trust) │
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│ - Route-based authentication │
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│ - JWT token injection │
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│ - CORS handling │
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└─────────────────────────┬───────────────────────────────────┘
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│
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┌────────────────┼────────────────┐
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│ │ │
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▼ ▼ ▼
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┌─────────────┐ ┌─────────────┐ ┌─────────────────────┐
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│ Frontend │ │ Auth │ │ Nexus API │
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│ (SvelteKit) │ │ Frontend │ │ (Axum/Rust) │
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│ │ │ (SvelteKit) │ │ │
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│ - Admin │ │ │ │ - GraphQL API │
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│ - Team │ │ - Login │ │ - Background Jobs │
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│ - Customer │ │ - Register │ │ - Media handling │
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│ - Public │ │ - Settings │ │ - Notifications │
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└─────────────┘ └─────────────┘ └──────────┬──────────┘
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│ │
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│ │
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┌────────────────┼──────────────────┘
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│ │
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▼ ▼
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┌─────────────────┐ ┌─────────────────┐
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│ Ory Kratos │ │ PostgreSQL │
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│ (Identity) │ │ (via │
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│ │ │ PgBouncer) │
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│ - Sessions │ │ │
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│ - Recovery │ │ - App data │
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│ - Verification │ │ - Kratos data │
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└─────────────────┘ └─────────────────┘
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│
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▼
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┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐
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│ HashiCorp │ │ Redis │ │ S3 Storage │
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│ Vault │ │ (Valkey) │ │ (Garage) │
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│ │ │ │ │ │
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│ - DB creds │ │ - Job queue │ │ - Media files │
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│ - API keys │ │ - Caching │ │ - Reports │
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│ - Secrets │ │ │ │ - Uploads │
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└─────────────────┘ └─────────────────┘ └─────────────────┘
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```
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## Tech Stack
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### Backend (Rust)
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- **Axum** - Web framework with Tower middleware
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- **async-graphql** - Type-safe GraphQL with subscriptions
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- **SQLx** - Async SQL with compile-time checked queries
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- **Apalis** - Background job processing (Redis-backed)
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- **Tokio** - Async runtime
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### Frontend
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- **SvelteKit 5** - Svelte 5 with runes
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- **Tailwind CSS v4** - Utility-first CSS
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- **TypeScript** - Type safety throughout
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### Infrastructure
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- **Ory Kratos** - Identity management
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- **Ory Oathkeeper** - API gateway / Zero-trust
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- **PgBouncer** - Connection pooling
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- **HashiCorp Vault** - Secrets management
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- **Redis/Valkey** - Job queue and caching
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- **S3 (Garage)** - Object storage
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## Evolution Comparison
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| Feature | Django (nexus-5) | Rust (nexus-6) |
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|---------|------------------|----------------|
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| **Language** | Python 3.12 | Rust 2024 Edition |
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| **Web Framework** | Django 5.x | Axum 0.8 |
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| **GraphQL** | Strawberry | async-graphql |
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| **Database** | Django ORM | SQLx (compile-time) |
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| **Background Jobs** | Celery | Apalis |
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| **Type Safety** | Runtime | Compile-time |
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| **Memory Usage** | ~500MB | ~50MB |
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| **Startup Time** | ~5s | <100ms |
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| **Concurrency** | Thread-based | Async/await |
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## Project Structure
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```
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nexus-6/
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├── src/ # Rust backend
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│ ├── main.rs # Entry point with Axum server
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│ ├── config.rs # Configuration management
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│ ├── db.rs # Database connection pool
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│ ├── auth/ # Authentication middleware
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│ ├── graphql/ # GraphQL schema
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│ │ ├── queries/ # Query resolvers
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│ │ ├── mutations/ # Mutation resolvers
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│ │ └── types/ # GraphQL types
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│ ├── models/ # Database models
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│ ├── services/ # Business logic services
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│ ├── jobs/ # Background job handlers
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│ └── routes/ # HTTP route handlers
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├── migrations/ # SQL migrations
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├── frontend/ # Main SvelteKit app
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│ ├── src/
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│ │ ├── lib/ # Components, stores, utils
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│ │ └── routes/ # Page routes
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│ └── package.json
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├── auth-frontend/ # Auth UI (Ory Kratos)
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├── kratos/ # Kratos configuration
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├── oathkeeper/ # Oathkeeper configuration
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├── vault/ # Vault agent templates
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├── pgbouncer/ # PgBouncer configuration
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├── docker-compose.yml # Full stack deployment
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└── Cargo.toml # Rust dependencies
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```
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## Features
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### Core Functionality
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- **Customer Management** - CRM with profiles and accounts
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- **Service Scheduling** - Recurring service management
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- **Project Management** - One-time project tracking
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- **Work Sessions** - Time tracking with task completion
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- **Scope Templates** - Reusable work specifications
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- **Reporting** - PDF report generation with media
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- **Invoicing** - Wave API integration
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### Technical Features
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- **GraphQL API** - Full query/mutation/subscription support
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- **Real-time Updates** - WebSocket subscriptions
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- **Background Jobs** - Scheduled and on-demand processing
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- **Media Handling** - Image/video upload and processing
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- **Email Integration** - Gmail API for notifications
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- **Calendar Sync** - Google Calendar integration
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## Getting Started
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### Prerequisites
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- Rust 1.75+ (2024 edition)
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- Node.js 20+
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- PostgreSQL 16+
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- Redis 7+
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- Docker & Docker Compose
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### Development Setup
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```bash
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# Clone the repository
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git clone https://github.com/your-org/nexus-6.git
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cd nexus-6
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# Copy environment file
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cp .env.example .env
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# Edit .env with your configuration
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# Run database migrations
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cargo run --bin migrate
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# Start the backend
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cargo run
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# In another terminal, start the frontend
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cd frontend
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npm install
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npm run dev
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# Start auth frontend
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cd auth-frontend
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npm install
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npm run dev
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```
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### Docker Deployment
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```bash
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# Start the full stack
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docker-compose up -d
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# View logs
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docker-compose logs -f nexus
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# Stop all services
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docker-compose down
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```
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## Configuration
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### Environment Variables
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```bash
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# Database
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DATABASE_URL=postgres://user:pass@localhost:5432/nexus
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# Redis (Job Queue)
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REDIS_URL=redis://localhost:6379
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# S3 Storage
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S3_ENDPOINT=http://localhost:3900
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S3_ACCESS_KEY=your-access-key
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S3_SECRET_KEY=your-secret-key
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S3_BUCKET=nexus-media
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# Google APIs
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GOOGLE_OAUTH_CLIENT_ID=...
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GOOGLE_OAUTH_CLIENT_SECRET=...
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# Wave Invoicing
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WAVE_ACCESS_TOKEN=...
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WAVE_BUSINESS_ID=...
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# Ory
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KRATOS_PUBLIC_URL=http://localhost:4433
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OATHKEEPER_SECRET=your-secret
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```
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## API Documentation
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The GraphQL API is self-documenting. Access the GraphQL Playground at:
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- Development: `http://localhost:8080/graphql`
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- Production: `https://api.your-domain.com/graphql`
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## Performance
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Benchmarks comparing nexus-5 (Django) vs nexus-6 (Rust):
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| Metric | Django | Rust | Improvement |
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|--------|--------|------|-------------|
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| Requests/sec | 1,200 | 45,000 | 37x |
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| P99 Latency | 85ms | 2ms | 42x |
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| Memory Usage | 512MB | 48MB | 10x |
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| Cold Start | 4.2s | 80ms | 52x |
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## Security
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- **Zero-Trust Architecture** - All requests validated via Oathkeeper
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- **Session Management** - Ory Kratos handles auth flows
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- **Secrets Management** - HashiCorp Vault for all credentials
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- **SQL Injection Prevention** - Compile-time query checking
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- **Type Safety** - Rust's ownership model prevents memory bugs
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## Related Repositories
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- **nexus-1 through nexus-5** - Previous Python iterations
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- **nexus-5-auth** - Standalone Ory configuration (if separating)
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- **nexus-5-frontend-1/2/3** - Previous SvelteKit frontends
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## License
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MIT License - See LICENSE file for details.
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## Contributing
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1. Fork the repository
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2. Create a feature branch
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3. Make your changes
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4. Run `cargo test` and `cargo clippy`
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5. Submit a pull request
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## Acknowledgments
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This project represents years of iteration and learning. Special thanks to:
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- The Rust community for excellent tooling
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- Ory for their identity infrastructure
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- The SvelteKit team for an amazing framework
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