Infrastructure as Code: Standardizing on Terraform and Ansible

Repeatable, reviewable infrastructure is the difference between a system you operate and one that operates you. Here’s how we’ve standardized our IaC practice.

If you can’t rebuild your infrastructure from code, you don’t really know what’s running. That conviction has shaped how we deliver every engagement — and why Terraform and Ansible sit at the center of our practice.

Provisioning vs. configuration

We use Terraform to provision — to declare what infrastructure should exist, from networks and storage to compute instances — and Ansible to configure what’s inside those resources once they’re running. The two are complementary, and using each for what it does best keeps our automation clean.

The result is infrastructure that’s version-controlled, peer-reviewed, and reproducible. A change is a pull request, not a midnight SSH session.

Why this matters for customers

Reproducibility is risk reduction. When your environment is defined in code, disaster recovery becomes a rebuild rather than an archaeology project, and onboarding a new engineer means reading the repository instead of decoding tribal knowledge.

It also makes change safe. Because every modification is reviewed and applied consistently, the gap between “it works on my machine” and “it works in production” closes.

The CoreTech take: Automation isn’t about replacing engineers — it’s about giving them leverage and a safety net. Standardizing on Terraform and Ansible means the infrastructure we hand over is one our customers can confidently evolve, not just operate.

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