Terraform Patterns

Infrastructure as Code: describe desired state → Terraform plans the diff → apply. Never manually change infrastructure that Terraform manages.

When to Activate

• Provisioning any cloud resource (compute, databases, networking, IAM)
• Setting up remote state backend for a team
• Creating reusable infrastructure modules
• Migrating manually-created resources under Terraform control
• Reviewing infrastructure changes in CI/CD
• Structuring multi-environment infrastructure (dev, staging, prod) with separate state files
• Debugging a terraform plan that shows unexpected resource replacements or drift
• Enforcing IAM least-privilege policies for ECS task roles or Kubernetes workloads

Project Structure