Prashant Lakhera
2 min readMar 13, 2024

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📌 21 Days of DevOps Interview — Day 13 — Describe strategies for scaling Terraform configurations in large enterprises 📌

Terraform has emerged as a foundation for provisioning infrastructure as code (IaC), but scaling it across large enterprises presents unique challenges. Here’s an approach to scale your Terraform strategies:

🏗 Infrastructure Organization
✔️ Sort Your Projects: Group your Terraform setups meaningfully, like by function or whether they’re for testing, staging, or live environments. This will help everyone stay on track and minimize mix-ups.
✔️ Workspaces Are Your Friend: Terraform’s workspaces allow you to handle different settings without juggling too many files. It’s like having separate desks for each project and keeping things tidy.

🧩 Module Design
✔️ Build Once, Use Everywhere: Create Terraform modules for tasks you do often and store them in one place. It’s like keeping your tools in a toolbox, ready whenever needed.
✔️ Keep Versions Clear: When you update a module, label it appropriately. Implement semantic versioning for modules to safely manage changes and ensure your infrastructure aligns precisely with the tested versions.

💾 State Management at Scale
✔️ Safe Storage for State Files: Utilize remote backends like AWS S3, coupled with state locking via DynamoDB, to ensure a shared, versioned, and concurrent write-protected state, essential for collaborative environments.
✔️ Break It Down: Split your Terraform state into smaller pieces to keep things clear and quick.

⚙️ CI/CD Integration
✔️ Automate the Routine: Use tools like Jenkins or GitHub Actions to set up automatic pipelines for your Terraform work.
✔️ Rules Matter: Incorporate HashiCorp Sentinel or OPA to enforce compliance and governance policies automatically, securing and standardizing infrastructure provisioning.

🏁 Conclusion
Adopting these strategic practices allows enterprises to navigate the complexities of scaling Terraform configurations, ensuring efficient, secure, and compliant infrastructure management as you grow.

📚 If you’re interested in more in-depth explanation of these topics, please check out my new book “Cracking the DevOps Interview”

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Prashant Lakhera

AWS Community Builder, Ex-Redhat, Author, Blogger, YouTuber, RHCA, RHCDS, RHCE, Docker Certified,4XAWS, CCNA, MCP, Certified Jenkins, Terraform Certified, 1XGCP