Infrastructure as Code (IaC) is essential for modern cloud operations, allowing companies to define their infrastructure through code, facilitating easy deployment, rollbacks, and reproducibility. By using tools like Terraform, teams can manage resources more efficiently, eliminating the risks associated with "snowflake servers" and improving overall agility in infrastructure management.

Pulumi CLI v3.192.0 introduces the `pulumi state taint` and `pulumi state untaint` commands, allowing users to mark resources for replacement without direct access to cloud APIs. This feature enhances infrastructure management by enabling users to prepare for resource replacement in CI/CD pipelines, facilitating smoother deployments. Users can preview changes and apply replacements later, streamlining the workflow.

Terraformer is an open-source CLI tool developed by Google that facilitates the reverse-engineering of existing infrastructure into Terraform code. It automates the process of generating Terraform configurations and state files from cloud resources, making it invaluable for migrating legacy infrastructure, auditing, onboarding projects, and disaster recovery. The article details Terraformer's features, use cases, installation, and provides practical examples of its operation.