Automated Iac Gitops Terraform Cloud Build

What a GitOps Infrastructure Workflow Is

A GitOps infrastructure workflow uses a version-controlled Git repository as the single source of truth for infrastructure configuration, paired with automated CI/CD tools such as Cloud Build to execute Terraform commands predictably and reliably across environments.

How it Meets the Stated Requirements

• Automated Validation and Code Review: By configuring Cloud Build triggers on pull requests (PRs) from feature branches, the pipeline automatically executes terraform plan. Collaborators can inspect the generated execution plan directly on the pull request before any code is merged, preventing unintended changes from entering the codebase.
• Controlled Promotion (dev to prod): Merging approved pull requests into the dev branch triggers a Cloud Build job that executes terraform apply against the development environment. Once verified in dev, a subsequent pull request merges the dev branch into prod, triggering an automated terraform apply in the production environment.
• Reduced Manual Intervention and Consistency: Provisioning is fully offloaded to automated pipelines, removing the need for local workstation execution, reducing human error, and ensuring both development and production environments strictly reflect committed code.
• Central State Management: Storing state remotely in a Cloud Storage bucket ensures team-wide state locking, prevents local state corruption, and enables headless pipeline executions.

Key Advantages and Capabilities

• Auditability and Traceability: Every infrastructure deployment is tied directly to a specific commit hash and approved pull request in Git.
• Automated Pre-flight Checks: Changes are previewed (terraform plan) and validated against policies before actuation.
• Standardized CI/CD Integration: Seamless integration with Google Cloud IAM and service accounts ensures least-privilege deployment execution.

Why This Is Optimal

This architecture adheres to Google Cloud's recommended GitOps blueprint for Infrastructure as Code. It establishes strict environment isolation, prevents configuration drift, and ensures changes are validated before impacting production workloads.