Task: Generate root.hcl for Multi-Environment Infrastructure (Pattern A)

You need to generate a root configuration file for a multi-environment AWS infrastructure project with the following requirements:

• Project: data-platform
• Environments: dev, staging, prod (each environment will have its own env.hcl)
• State backend: AWS S3, bucket name data-platform-tfstate, region eu-west-1, DynamoDB locking table data-platform-tfstate-lock
• Provider: AWS provider, region injected via generate block, authentication via IAM role assumption (arn:aws:iam::ACCOUNT_ID:role/TerraformDeployRole)
• Terraform version constraint: >= 1.6.0
• Terragrunt version constraint: >= 0.93.0
• Error handling: Retry on transient AWS API errors using the modern errors block (not deprecated retryable_errors)

Your Task

1. First, output the Architecture Pattern Selection checklist for this project before writing any files.

2. Generate the root.hcl file content for this project following Pattern A (environment-agnostic root).

3. Verify your generated file against the Step 4 checklist items for root.hcl:

   • No read_terragrunt_config(find_in_parent_folders("env.hcl")) in root
   • remote_state block has encrypt = true
   • errors block used (not deprecated retryable_errors)

4. Show what the state key path would resolve to for a module at prod/vpc/terragrunt.hcl.