fastapi-deployment-config

# FastAPI Deployment Configuration

**Purpose:** Autonomously configure and deploy FastAPI applications across multiple platforms with production-ready configurations.

**Activation Triggers:**
- Deployment setup requests
- Docker containerization needs
- Platform-specific configuration (Railway, DigitalOcean, AWS)
- Health check implementation
- Environment variable management
- Reverse proxy setup (Nginx)
- Production optimization
- Multi-stage build configurations

**Key Resources:**
- `scripts/build-docker.sh` - Multi-stage Docker build automation
- `scripts/validate-deployment.sh` - Pre-deployment validation checks
- `scripts/health-check.sh` - Application health verification
- `templates/` - Production-ready Dockerfile, docker-compose.yml, platform configs
- `examples/` - Platform-specific deployment guides (Railway, DigitalOcean, AWS)

## Deployment Workflow

### 1. Pre-Deployment Validation

Run comprehensive checks before deployment:

```bash
./scripts/validate-deployment.sh

# Validates:
# - Python dependencies (requirements.txt)
# - Environment variables (.env.example)
# - FastAPI application structure
# - Database migrations (if using Alembic)
# - Static file configuration
# - CORS settings
# - Security configurations
```

**Common issues detected:**
- Missing required dependencies
- Unset environment variables
- Database connection configuration
- Missing CORS origins
- Insecure secret key defaults

### 2. Docker Containerization

Build optimized Docker image using multi-stage builds:

```bash
./scripts/build-docker.sh [--platform=linux/amd64] [--tag=myapp:latest]

# Features:
# - Multi-stage build (builder + runtime)
# - Layer caching optimization
# - Non-root user for security
# - Health check integration
# - Minimal production image size
```

**Dockerfile template** (`templates/Dockerfile`):
- Python 3.11+ slim base image
- Virtual environment isolation
- Production dependency separation
- Gunicorn/Uvicorn workers
- Security best practices

### 3. Pl