drone-detector/docs/DOCKER_DEPLOYMENT.md

Docker Deployment Guide

This guide covers deploying the Drone Detection System using Docker and Docker Compose.

Prerequisites

• Docker Engine 20.10+
• Docker Compose 2.0+
• At least 4GB RAM
• 10GB available disk space

Quick Start

1. Environment Setup

# Copy environment template
cp .env.docker .env

# Edit .env with your Twilio credentials
nano .env

2. Basic Deployment

# Build and start all services
docker-compose up -d

# View logs
docker-compose logs -f

# Check service status
docker-compose ps

3. Access the Application

• Frontend: http://localhost:3000
• Backend API: http://localhost:3001/api
• Database: localhost:5432
• Redis: localhost:6379

Testing Docker Builds

Before running the full docker-compose setup, you can test individual container builds:

# Test all builds
./test-docker-builds.sh     # Linux/Mac
test-docker-builds.bat      # Windows

# Test individual builds
docker build -t test-backend ./server
docker build -t test-frontend ./client
docker build -f docker/simulator/Dockerfile -t test-simulator .

Service Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   Frontend      │    │    Backend      │    │   PostgreSQL    │
│   (React)       │◄──►│   (Node.js)     │◄──►│   Database      │
│   Port: 3000    │    │   Port: 3001    │    │   Port: 5432    │
└─────────────────┘    └─────────────────┘    └─────────────────┘
         │                       │                       │
         │              ┌─────────────────┐             │
         └──────────────►│     Redis       │◄────────────┘
                        │   (Caching)     │
                        │   Port: 6379    │
                        └─────────────────┘

Docker Compose Profiles

Development Profile (Default)

docker-compose up -d

Includes: Frontend, Backend, Database, Redis

Production Profile

docker-compose --profile production up -d

Includes: All services + Nginx reverse proxy

Simulation Profile

docker-compose --profile simulation up -d

Includes: All services + Python drone simulator

Service Details

Frontend Container

• Image: Custom Nginx + React build
• Port: 3000:80
• Features:
  • Gzip compression
  • SPA routing support
  • API proxying
  • Security headers

Backend Container

• Image: Node.js 18 Alpine
• Port: 3001:3001
• Features:
  • Health checks
  • Non-root user
  • Log persistence
  • Signal handling

Database Container

• Image: PostgreSQL 15 Alpine
• Port: 5432:5432
• Features:
  • Persistent storage
  • Health checks
  • Initialization scripts
  • Performance tuning

Redis Container

• Image: Redis 7 Alpine
• Port: 6379:6379
• Features:
  • Persistent storage
  • AOF logging
  • Health checks

Nginx Proxy (Production)

• Image: Nginx Alpine
• Ports: 80:80, 443:443
• Features:
  • SSL termination
  • Load balancing
  • Static file serving
  • WebSocket support

Environment Variables

Backend Environment

NODE_ENV=production
PORT=3001
DB_HOST=postgres
DB_PORT=5432
DB_NAME=drone_detection
DB_USER=postgres
DB_PASSWORD=postgres123
REDIS_HOST=redis
REDIS_PORT=6379
JWT_SECRET=your-jwt-secret
TWILIO_ACCOUNT_SID=your-twilio-sid
TWILIO_AUTH_TOKEN=your-twilio-token
TWILIO_PHONE_NUMBER=your-twilio-phone
CORS_ORIGIN=http://localhost:3000

Frontend Build Arguments

VITE_API_URL=http://localhost:3001/api
VITE_WS_URL=ws://localhost:3001

Data Persistence

Volumes

• postgres_data: Database files
• redis_data: Redis persistence
• ./server/logs: Application logs

Backup Strategy

# Database backup
docker-compose exec postgres pg_dump -U postgres drone_detection > backup.sql

# Restore database
docker-compose exec -T postgres psql -U postgres drone_detection < backup.sql

# Volume backup
docker run --rm -v uamils_postgres_data:/data -v $(pwd):/backup alpine tar czf /backup/postgres_backup.tar.gz /data

Monitoring and Logs

View Logs

# All services
docker-compose logs -f

# Specific service
docker-compose logs -f backend

# Last 100 lines
docker-compose logs --tail=100 backend

Health Checks

# Check service health
docker-compose ps

# Manual health check
curl http://localhost:3001/api/health
curl http://localhost:3000/health

Resource Monitoring

# Container stats
docker stats

# Detailed container info
docker-compose exec backend top

Troubleshooting

Common Issues

1. Database Connection Issues

# Check database status
docker-compose exec postgres pg_isready -U postgres

# View database logs
docker-compose logs postgres

# Reset database
docker-compose down -v
docker-compose up -d

2. Frontend Build Issues

# If npm ci fails (missing package-lock.json)
# The Dockerfile has been updated to use npm install instead

# Rebuild frontend
docker-compose build --no-cache frontend

# Test frontend build individually
docker build -t test-frontend ./client

# Check build logs
docker-compose logs frontend

3. Backend API Issues

# Check backend health
curl http://localhost:3001/api/health/detailed

# View backend logs
docker-compose logs backend

# Restart backend
docker-compose restart backend

4. Port Conflicts

# Check port usage
netstat -tulpn | grep :3000
netstat -tulpn | grep :3001

# Stop conflicting services
docker-compose down

Performance Tuning

1. Database Optimization

# Increase shared_buffers for PostgreSQL
docker-compose exec postgres psql -U postgres -c "ALTER SYSTEM SET shared_buffers = '256MB';"
docker-compose restart postgres

2. Memory Limits

# Add to docker-compose.yml services
services:
  backend:
    mem_limit: 512m
    mem_reservation: 256m
  frontend:
    mem_limit: 256m
    mem_reservation: 128m

Production Deployment

1. SSL Configuration

# Generate SSL certificates
mkdir -p docker/ssl
openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
  -keyout docker/ssl/nginx.key \
  -out docker/ssl/nginx.crt

2. Environment Security

# Use Docker secrets for sensitive data
echo "your-jwt-secret" | docker secret create jwt_secret -
echo "your-twilio-token" | docker secret create twilio_token -

3. Nginx Configuration

# Enable production profile
docker-compose --profile production up -d

# Update nginx config for your domain
# Edit docker/nginx/default.conf

4. Monitoring Setup

# Add monitoring services
docker-compose -f docker-compose.yml -f docker-compose.monitoring.yml up -d

Scaling

Horizontal Scaling

# Scale backend instances
docker-compose up -d --scale backend=3

# Load balancer configuration required

Database Scaling

# Add read replicas
postgres-replica:
  image: postgres:15-alpine
  environment:
    POSTGRES_MASTER_SERVICE: postgres
    POSTGRES_REPLICA_USER: replica
    POSTGRES_REPLICA_PASSWORD: replica123

Maintenance

Updates

# Update images
docker-compose pull

# Rebuild and restart
docker-compose down
docker-compose up -d --build

Cleanup

# Remove unused containers
docker system prune

# Remove unused volumes
docker volume prune

# Clean build cache
docker builder prune

Testing with Simulator

Run Simulation

# Start simulation profile
docker-compose --profile simulation up -d

# Run custom simulation
docker-compose run --rm simulator python drone_simulator.py \
  --devices 10 \
  --duration 3600 \
  --detection-interval 30

Monitor Simulation

# View simulator logs
docker-compose logs -f simulator

# Check API stats
curl http://localhost:3001/api/dashboard/stats

Security Considerations

Container Security

• Non-root users in all containers
• Read-only root filesystems where possible
• Limited container capabilities
• Security scanning with docker scan

Network Security

• Custom bridge network isolation
• No unnecessary port exposures
• Internal service communication

Data Security

• Encrypted environment variables
• SSL/TLS termination at proxy
• Database connection encryption
• Regular security updates

For additional security hardening, see Security Best Practices.