Abstract
As cloud deployments scale across multiple environments and teams, Infrastructure-as-Code (IaC) faces challenges related to maintainability, scalability, and security. This article introduces a multi-tenant Terraform Cloud architecture that uses workspace isolation, RBAC policies, and GitLab integration to manage infrastructure across several AWS accounts. The design supports granular access control, audit trails, and secure state management, addressing the challenges of DevOps in regulated environments. The implementation includes automation of IAM policies, network segmentation, and Terraform pipeline optimization. Empirical results show improved deployment speed, reduced infrastructure errors, and streamlined compliance audits across enterprise-scale projects.
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