How to Manage Multi-Environment Terraform Configs Using YAML Files

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Infrastructure as Code (IaC) tool Terraform allows teams to version and automate infrastructure provisioning, but managing configurations across dev, staging, and production environments remains a common challenge. A new tutorial series introduces a method of decoupling Terraform code from environment-specific configuration data using YAML files. The approach relies on Terraform's yamldecode function, available since version 0.13, to load separate YAML files for each environment. This structure improves reusability, maintainability, and readability while following the DRY (Don't Repeat Yourself) principle. The recommended project layout stores environment-specific YAML files in a dedicated directory alongside core Terraform configuration files.

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