Task: Generate Multi-Environment Infrastructure Structure

A team needs a new multi-environment AWS infrastructure setup for a web platform. Generate all the Terragrunt configuration files for:

Environments: dev and prod Modules per environment: vpc and app (app depends on vpc) Architecture Pattern: Pattern A (multi-env agnostic root) State bucket: webplatform-tfstate-{account_id} (use a placeholder) Region: ap-southeast-1

Dev environment:

• VPC CIDR: 10.0.0.0/16
• App instance type: t3.small

Prod environment:

• VPC CIDR: 10.1.0.0/16
• App instance type: m5.large
• App module should have prevent_destroy = true

Your Task

Generate the complete file tree and contents for all files:

1. infrastructure/root.hcl
2. infrastructure/dev/env.hcl
3. infrastructure/dev/vpc/terragrunt.hcl
4. infrastructure/dev/app/terragrunt.hcl
5. infrastructure/prod/env.hcl
6. infrastructure/prod/vpc/terragrunt.hcl
7. infrastructure/prod/app/terragrunt.hcl

Show the directory tree first, then each file's content. Follow Pattern A: root.hcl must NOT reference env.hcl. Child modules read env.hcl directly.