writing-infrastructure-codelisted

# Infrastructure as Code Provision and manage cloud infrastructure using code-based automation tools. This skill covers tool selection, state management, module design, and operational patterns across Terraform/OpenTofu, Pulumi, and AWS CDK. ## When to Use Use this skill when: - Provisioning cloud infrastructure (compute, networking, databases, storage) - Migrating from manual infrastructure to code-based workflows - Designing reusable infrastructure modules - Implementing multi-cloud or hybrid-cloud deployments - Establishing state management and drift detection patterns - Integrating infrastructure provisioning into CI/CD pipelines - Evaluating IaC tools (Terraform vs Pulumi vs CDK) Common requests: - "Create a Terraform module for VPC provisioning" - "Set up remote state with locking for team collaboration" - "Compare Pulumi vs Terraform for our use case" - "Design composable infrastructure modules" - "Implement drift detection for existing infrastructure" ## Core Concepts ### Infrastructure as Code Fundamentals **Key Principles:** 1. **Declarative vs Imperative** - Describe desired state (Terraform) or program infrastructure (Pulumi) 2. **Idempotency** - Same input produces same output, safe to re-run 3. **Version Control** - Infrastructure changes tracked in Git 4. **State Management** - Track actual infrastructure state 5. **Module Composition** - Reusable, versioned infrastructure components **Benefits:** - Reproducibility (same code = same infrastructure) - Au