⏱️ Skip if: You already know IaC, Terraform workflow, and pain points of manual infra.

🧠 Big Picture: Why Do We Even Need Terraform?

❓ “Why write code when I can just click in the AWS Console?”

Let’s walk through a real-world scenario 🚨:

⚙️ Scenario: 3-Tier App × 6 Environments × 100+ Apps

You need to deploy:

• Web tier (load balancer + EC2 + CDN)
• App tier (ASG + internal LB)
• DB tier (RDS + replicas)
• Networking (VPC, subnets, SGs, Route 53)
• Monitoring, logging, IAM...

✅ Manually in AWS Console per environment: ~2 hours

🔁 For 6 environments (dev, test, staging, prod, DR, perf): 12 hours/app

🏢 For 100 apps: 1,200 hours ⏳ → That’s 6 months of full-time work!

🔥 This is why manual provisioning doesn’t scale — and defeats the purpose of using the cloud.

📉 Problems with Manual Infrastructure