Docker Production Security

# Docker Containerization Best Practices

Master Docker containerization with Google Antigravity IDE. This comprehensive guide covers multi-stage builds, security hardening, and production optimization.

## Multi-Stage Dockerfile
```dockerfile
# Stage 1: Dependencies
FROM node:20-alpine AS deps
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production

# Stage 2: Build
FROM node:20-alpine AS builder
COPY . .
RUN npm run build
```

## Security Hardening
- Run containers as non-root users
- Implement proper health checks
- Use .dockerignore to exclude unnecessary files