Scalable and Secure Infrastructure-as-Code Governance through Multi-Tenant Terraform Cloud Architectures

Mallikarjun Vasa

International Journal of Scientific Research in Science and Technology, 2025, vol. 12, issue 6, 661-670

Abstract: As organizations expand cloud adoption across multiple teams, environments, and regulatory domains, Infrastructure-as-Code (IaC) implementations increasingly encounter limitations related to scalability, access control, and governance. Traditional monolithic IaC models struggle to enforce isolation, ensure auditability, and support parallel infrastructure operations at enterprise scale. This article presents a multi-tenant Terraform Cloud architecture designed to address these challenges through workspace isolation, role-based access control, and policy-driven automation. The proposed architecture introduces structured separation of infrastructure state, automated governance enforcement, and integrated CI/CD workflows to enable secure and scalable DevOps operations. By combining hierarchical workspace design, least-privilege identity management, and automated compliance evidence generation, the system supports infrastructure provisioning across multiple cloud accounts while maintaining centralized oversight. Empirical evaluation across enterprise environments demonstrates a 47% reduction in average deployment time, a 62% decrease in infrastructure-related errors, and a 73% reduction in compliance audit preparation effort compared to traditional IaC implementations. Additional improvements include faster security incident response and measurable infrastructure cost optimization. These results indicate that multi-tenant IaC governance architectures can significantly enhance operational efficiency, security posture, and regulatory readiness in large-scale cloud environments.

Keywords: Infrastructure-as-Code; Terraform; Multi-tenant Architecture; DevOps Security; Cloud Computing; RBAC (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:etm:ijsrst:v12:y2025:i6:id:1339

DOI: 10.32628/IJSRST25126396

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