GlobalTech wants to manage its VPC network, GKE clusters, and Cloud SQL instances using Infrastructure as Code (IaC) to ensure repeatability and…

Terraform is the Google-recommended tool for Infrastructure as Code (IaC). It uses a declarative syntax to define and provision infrastructure across multiple cloud providers, including a robust and well-maintained provider for Google Cloud. Storing Terraform configuration files in a version control system (like Git) directly addresses the requirements for repeatability and version control. Google Cloud's documentation explicitly recommends Terraform over its native Cloud Deployment Manager for new deployments, highlighting its extensive features, strong community support, and multi-cloud capabilities. Using Cloud Build as an execution environment for Terraform is a common and recommended CI/CD pattern for automating infrastructure changes.

B. Manually configuring resources via the Cloud Console is the opposite of IaC. This approach is error-prone, lacks version control, and is not repeatable in a consistent, automated manner.

C. While Cloud Build can execute scripts, writing custom Python scripts for infrastructure management is an imperative approach that requires more effort to maintain and ensure idempotency compared to a declarative tool like Terraform.

D. Although Cloud Deployment Manager is Google's native IaC service, Google's official documentation now recommends that new customers adopt Terraform for infrastructure provisioning, making CDM a less-preferred option.

1. Google Cloud, Cloud Deployment Manager Documentation, Overview: "For new deployments on Google Cloud, we recommend that you use Terraform. Terraform is an open source infrastructure-as-code (IaC) tool that has extensive support for Google Cloud products and services." This source directly supports choosing Terraform over Cloud Deployment Manager.

Source: Google Cloud Documentation, cloud.google.com/deployment-manager/docs/overview, "Recommendation to use Terraform" section.

2. Google Cloud, Terraform on Google Cloud: "Google is a premier partner for Terraform, and is committed to our users' success with Terraform on Google Cloud... You can use Terraform to create and manage Google Cloud resources..." This confirms the strong, official support for Terraform.

Source: Google Cloud Documentation, cloud.google.com/docs/terraform, "Overview" section.

3. Google Cloud Architecture Framework, System design, Manage infrastructure as code: "Declarative tools let you define the desired state of your infrastructure... Examples of declarative tools include Terraform, Ansible, Chef, Puppet, and Pulumi." This reference establishes Terraform as a primary example of a declarative IaC tool, which is the best practice for ensuring repeatability.

Source: Google Cloud Architecture Framework, cloud.google.com/architecture/framework/system-design/manage-infrastructure-as-code, "Use declarative tools" section.