Engineer Deploys Reusable Terraform Modules for AWS Dev, Staging, and Prod Environments

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A developer has published a project on DEV Community demonstrating how to manage AWS infrastructure across three separate environments — development, staging, and production — using reusable Terraform modules. Each environment shares the same core modules for networking, compute, and database provisioning, but uses environment-specific configurations for instance sizing, scaling, and resilience. The infrastructure includes Amazon VPC, EC2 Auto Scaling Groups, and private RDS PostgreSQL databases, with production configured for Multi-AZ high availability. Terraform remote state is stored in Amazon S3, with DynamoDB used to implement state locking and prevent concurrent modifications. Sensitive files such as state files, backend configurations, and variable definitions are excluded from version control via .gitignore to protect environment-specific and potentially sensitive data.

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