How should the source control repositories be organized for a setup using Terraform and GKE clusters?

Organizing source control repositories effectively is crucial for maintaining a Terraform setup with Google Kubernetes Engine (GKE) clusters. Using shared repositories for infrastructure while employing separate branches for different environments balances collaboration and environment isolation.

This approach enhances team productivity by centralizing the infrastructure codebase, facilitating easier management and version control while also ensuring that all changes are traceable and subject to the same review processes. With separate branches for each environment, teams can deploy changes safely and independently. This allows developers to work on new features or fixes in isolated branches without affecting other environments, such as production, which is vital for maintaining stability.

By adhering to this method, versioning becomes straightforward, enabling the team to apply changes in a controlled manner while allowing for rapid iteration and experimentation within non-production branches. Furthermore, it helps maintain a consistent infrastructure as code strategy, reducing configuration drift across different environments.

This organization enhances collaboration among team members while ensuring that the necessary structure is in place for deploying and managing infrastructure through Terraform in a GKE context.