Question

How do you handle version control for IaC when managing multiple cloud providers (AWS, Azure, GCP)?

It assesses version control practices for the IaC setup that are applied in different cloud setups. This could include strategies related to the branching model, the use of Terraform or Pulumi as a tool, or approaches for achieving consistency during the management of provider-specific configurations.

Answer 1

Multi-Cloud IaC Structure: I use a modular approach with Terraform or Pulumi, organizing IaC files into provider-specific directories. Each module contains reusable code for specific cloud services, and I keep a separate directory or repository for each cloud provider’s unique configurations.
Version Control and GitOps: To manage IaC versions, I use Git as the single source of truth, leveraging branching and tagging to track changes across environments. For example, using GitOps principles, each IaC change goes through pull requests and is peer-reviewed before being merged, ensuring consistency. Environment-specific branches and parameterized configurations help keep IaC scripts flexible for each cloud provider.
State Management: I use remote state backends (e.g., AWS S3 with DynamoDB for state locking, Azure Storage for Terraform state) to maintain the current state of infrastructure. Each provider’s state is stored separately, ensuring clear separation and better disaster recovery.