# Deployment Platform

## Decision Tree: Deployment Platform

```
Where should we deploy our application?
  ├─ Serverless/Edge [weight: 8] [priority: high] [risk: low] [recommended]
  │   ├─ Vercel [weight: 9] [recommended]
  │   │   ├─ Best for
  │   │   │   ├─ Next.js applications → First-class support
  │   │   │   ├─ Frontend frameworks → React, Vue, Svelte
  │   │   │   └─ Edge functions → Global distribution
  │   │   ├─ Features
  │   │   │   ├─ Zero config deployment → Git push to deploy
  │   │   │   ├─ Preview deployments → Every PR gets URL
  │   │   │   ├─ Edge network → Fast worldwide
  │   │   │   └─ Automatic HTTPS → SSL included
  │   │   └─ Pricing: Generous free tier, scales with usage
  │   │
  │   ├─ Netlify [weight: 8]
  │   │   ├─ Best for
  │   │   │   ├─ Static sites → JAMstack architecture
  │   │   │   ├─ Serverless functions → Simple backend
  │   │   │   └─ Form handling → Built-in forms
  │   │   ├─ Features
  │   │   │   ├─ Git-based workflow → Branch deploys
  │   │   │   ├─ Edge functions → Deno runtime
  │   │   │   └─ Identity/Auth → Built-in authentication
  │   │   └─ Pricing: Good free tier, competitive paid plans
  │   │
  │   └─ Cloudflare Pages [weight: 7]
  │       ├─ Best for
  │       │   ├─ Global performance → 200+ data centers
  │       │   ├─ Workers integration → Edge compute
  │       │   └─ Cost optimization → Generous limits
  │       └─ Features
  │           ├─ Fast builds → Quick deployments
  │           ├─ Web analytics → Free, privacy-first
  │           └─ DDoS protection → Enterprise-grade security
  │
  ├─ Container Platforms [weight: 7] [priority: high] [risk: medium]
  │   ├─ Fly.io [weight: 8] [recommended]
  │   │   ├─ Best for
  │   │   │   ├─ Full-stack apps → Database included
  │   │   │   ├─ Global distribution → Deploy near users
  │   │   │   └─ Docker-based → Any language/framework
  │   │   ├─ Features
  │   │   │   ├─ Fast deployments → Global edge network
  │   │   │   ├─ Postgres included → Managed database
  │   │   │   └─ WebSocket support → Real-time apps
  │   │   └─ Pricing: Pay for resources used
  │   │
  │   ├─ Railway [weight: 7]
  │   │   ├─ Best for
  │   │   │   ├─ Developer experience → Simple UI
  │   │   │   ├─ Hobby projects → Easy to start
  │   │   │   └─ Monorepos → Good support
  │   │   ├─ Features
  │   │   │   ├─ One-click deploys → GitHub integration
  │   │   │   ├─ Automatic SSL → Included
  │   │   │   └─ Metrics/logs → Built-in monitoring
  │   │   └─ Pricing: Free tier, usage-based
  │   │
  │   └─ Render [weight: 7]
  │       ├─ Best for
  │       │   ├─ Heroku alternative → Similar experience
  │       │   ├─ Static + dynamic → Unified platform
  │       │   └─ Background jobs → Cron + workers
  │       └─ Features
  │           ├─ Auto-deploy → Git push deploys
  │           ├─ Preview environments → PR previews
  │           └─ Managed services → Postgres, Redis included
  │
  ├─ Traditional Cloud (AWS) [weight: 6] [priority: medium] [risk: high]
  │   ├─ AWS Elastic Beanstalk [weight: 6]
  │   │   ├─ Best for: AWS users wanting simplicity
  │   │   ├─ Features: Managed EC2, auto-scaling
  │   │   └─ Setup: Moderate complexity
  │   ├─ AWS ECS/Fargate [weight: 7]
  │   │   ├─ Best for: Container orchestration
  │   │   ├─ Features: Serverless containers
  │   │   └─ Setup: Complex but powerful
  │   └─ AWS Lambda [weight: 7]
  │       ├─ Best for: Event-driven workloads
  │       ├─ Features: True serverless
  │       └─ Setup: Requires framework (Serverless, SAM)
  │
  ├─ Traditional Cloud (GCP) [weight: 6] [priority: medium] [risk: high]
  │   ├─ Google Cloud Run [weight: 8] [recommended]
  │   │   ├─ Best for: Containerized serverless
  │   │   ├─ Features: Auto-scale to zero, fast cold starts
  │   │   └─ Setup: Simple container deployment
  │   ├─ Google App Engine [weight: 6]
  │   │   ├─ Best for: Legacy applications
  │   │   └─ Features: Managed platform
  │   └─ GKE (Kubernetes) [weight: 5]
  │       ├─ Best for: Complex orchestration needs
  │       └─ Setup: Very complex, enterprise-grade
  │
  ├─ Platform as a Service [weight: 7] [priority: medium] [risk: low]
  │   ├─ Heroku [weight: 6]
  │   │   ├─ Status: Recently acquired, uncertain future
  │   │   ├─ Best for: Rapid prototyping
  │   │   └─ Features: Add-ons ecosystem
  │   └─ DigitalOcean App Platform [weight: 7]
  │       ├─ Best for: Simple deployments
  │       ├─ Features: Managed apps + databases
  │       └─ Pricing: Predictable, affordable
  │
  └─ Self-Hosted [weight: 4] [priority: low] [risk: high]
      ├─ VPS (DigitalOcean, Linode) [weight: 5]
      │   ├─ Best for: Full control needed
      │   ├─ Cost: Lower at scale
      │   └─ Maintenance: You handle everything
      └─ Kubernetes (self-managed) [weight: 3]
          ├─ Best for: Large scale, complex needs
          ├─ Cost: Can be lower at huge scale
          └─ Maintenance: Requires dedicated ops team
```

## Context

Choose deployment platform based on:
- Application type (static, API, full-stack)
- Scale expectations
- Budget
- Team DevOps expertise
- Geographic distribution needs

## Recommendations

**Vercel is recommended** for most modern web apps because:
- Zero-config deployment (Git push → live)
- Excellent DX (developer experience)
- Preview deployments for every PR
- Global CDN included
- Generous free tier

**Use Fly.io** if you need:
- Full control over server environment
- Persistent storage/databases
- WebSocket or long-running connections
- Deploy globally near users

**Avoid AWS/GCP** unless you:
- Already have AWS/GCP expertise
- Need specific cloud services
- Have compliance requirements
- Are at massive scale (>$10k/month infrastructure)

## Decision Matrix

| Platform | Best For | Complexity | Cost |
|----------|----------|------------|------|
| Vercel | Next.js, frontends | Low | Low-Medium |
| Netlify | Static sites, JAMstack | Low | Low-Medium |
| Fly.io | Full-stack, global | Medium | Medium |
| Railway | Hobby projects | Low | Low |
| Render | Heroku replacement | Low | Medium |
| AWS | Enterprise, complex | High | Variable |
| GCP | Container-first | High | Variable |

## Implementation Checklist

- [ ] Create account on chosen platform
- [ ] Connect Git repository
- [ ] Configure build settings
- [ ] Set environment variables
- [ ] Configure custom domain
- [ ] Set up SSL certificate (usually automatic)
- [ ] Configure deployment branches
- [ ] Set up monitoring/alerts
- [ ] Document deployment process
- [ ] Plan backup strategy
- [ ] Configure CI/CD if needed
- [ ] Test rollback procedure