Nean deploy

Purpose

Prepare a NEAN project for production deployment with proper configuration, security hardening, and monitoring setup.

Arguments

• --target <platform> — Deployment target (default: docker)
  • docker — Docker Compose (self-hosted, simplest)
  • aws — AWS (ECS, RDS, ALB)
  • k8s — Kubernetes (Helm charts)
• --check-only — Run pre-deployment checklist without creating files

Pre-deployment checklist (always runs)

Environment

• All env vars documented in .env.example
• Production env vars set in deployment platform
• JWT_SECRET is unique 64+ char string
• NODE_ENV=production in production
• No secrets in code or committed files

Database

• PostgreSQL instance provisioned
• Connection string configured
• Migrations tested and ready
• Database user has minimal required permissions
• Backups configured

Security

• Helmet middleware configured
• CORS configured for production domain
• Rate limiting enabled
• Auth secrets rotated from development
• CSP headers configured
• HTTPS enforced

Performance

• Build succeeds: npm run build
• No TypeScript errors
• Angular bundle size reasonable (check with npm run build -- --stats-json)
• API response times acceptable
• Database indexes in place

Monitoring

• Error tracking configured (Sentry, etc.)
• Logging configured for production (structured JSON)
• Health check endpoints working: /api/health, /api/health/ready
• Metrics collection configured (optional)

What gets created (per target)

Docker

docker/
├── Dockerfile.api           # Multi-stage NestJS build
├── Dockerfile.web           # Multi-stage Angular build + Nginx
├── docker-compose.yml       # Full stack
├── docker-compose.prod.yml  # Production overrides
└── nginx.conf               # Nginx configuration

AWS

infrastructure/
├── terraform/               # Infrastructure as code
│   ├── main.tf
│   ├── variables.tf
│   └── outputs.tf
├── ecs/
│   └── task-definition.json
└── scripts/
    └── deploy.sh            # Deployment script

Kubernetes

k8s/
├── helm/
│   └── myapp/
│       ├── Chart.yaml
│       ├── values.yaml
│       ├── values.prod.yaml
│       └── templates/
│           ├── api-deployment.yaml
│           ├── web-deployment.yaml
│           ├── service.yaml
│           ├── ingress.yaml
│           ├── configmap.yaml
│           └── secrets.yaml
└── skaffold.yaml            # Local development

Docker deployment (recommended for self-hosted)

Build and run

# Build images
docker compose -f docker/docker-compose.yml build

# Run locally
docker compose -f docker/docker-compose.yml up -d

# Production with overrides
docker compose -f docker/docker-compose.yml -f docker/docker-compose.prod.yml up -d

Production docker-compose.prod.yml

version: '3.8'

services:
  api:
    environment:
      - NODE_ENV=production
    deploy:
      replicas: 2
      resources:
        limits:
          memory: 512M
    restart: always

  web:
    deploy:
      replicas: 2
    restart: always

  db:
    volumes:
      - /data/postgres:/var/lib/postgresql/data
    restart: always

Environment-specific configuration

API environment

# Production .env for API
NODE_ENV=production
DATABASE_HOST=db
DATABASE_PORT=5432
DATABASE_USERNAME=myapp
DATABASE_PASSWORD=${DB_PASSWORD}  # From secrets
DATABASE_NAME=myapp_prod
JWT_SECRET=${JWT_SECRET}          # From secrets
JWT_EXPIRES_IN=15m
JWT_REFRESH_EXPIRES_IN=7d
CORS_ORIGINS=https://myapp.com
API_PORT=3000
LOG_LEVEL=info

Angular environment

// environment.prod.ts
export const environment = {
  production: true,
  apiUrl: '/api',  // Relative, goes through Nginx
};

Workflow

1. Run pre-deployment checklist
2. Fix any blockers found
3. Create deployment configuration for target
4. Verify builds succeed
5. Test in staging environment
6. Document deployment steps
7. Set up monitoring and alerts

Output

• Checklist results (pass/fail)
• Files created
• Next steps for deployment
• Environment variables needed in production
• Monitoring setup instructions

Reference

For platform-specific configurations, see reference/nean-deploy-reference.md