Infrastructure as Code Best Practices: Terraform, Ansible, Kubernetes
Introduction Infrastructure as Code (IaC) is how modern teams build reliable systems. Instead of manually clicking through cloud consoles or SSHing into servers, you define infrastructure in code—testable, version-controlled, repeatable. This guide shows you practical patterns for Terraform, Ansible, and Kubernetes with real examples, not just theory.
Why Infrastructure as Code? Consider a production outage scenario:
Without IaC:
Database server dies You manually recreate it through AWS console (30 minutes) Forgot to enable backups? Another 15 minutes Need to reconfigure custom security groups? More time Total recovery: 2-4 hours Risk of missing steps = still broken With IaC:
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