Building a Reusable VPC, Subnets, and Firewall Rules Module

Short summary

Learn to build reusable Terraform modules for Google Cloud infrastructure by refactoring a basic VPC configuration into a parameterized child module. The tutorial demonstrates module structure, variable validation, remote state management with GCS, and folder organization. Code patterns treat modules like functions: inputs become variables, outputs become return values.

• •Terraform modules encapsulate infrastructure as reusable components with inputs (variables) and outputs
• •Practical example creates a GCP network module with VPC, subnets, and firewall rules using Google Cloud Storage for remote state
• •Local module folder structure separates root configuration (caller) from child modules (implementation)

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