AWS IaC in 2026: Terraform vs OpenTofu vs Ansible — Practical Decision Guide
May 2026 guidance with a reproducible scaffold—9 artefact files, 0 Terraform-managed creates at plan baseline, and third-party comparisons refreshed Apr 24 and May 4, 2026.
May 2026 guidance with a reproducible scaffold—9 artefact files, 0 Terraform-managed creates at plan baseline, and third-party comparisons refreshed Apr 24 and May 4, 2026.
Every Terraform command you actually need on AWS — modernized for Terraform 1.10+, with deprecated commands flagged and AWS-specific gotchas for state, workspaces, providers, and the new import/removed/ephemeral primitives.
Anton Babenko's Terraform Claude Skill is the biggest jump in AI-assisted IaC since Copilot. We tested it on a real AWS stack — VPC, EKS, S3 + KMS, IAM — and documented exactly what it fixes, what it misses, and what AWS teams should layer on top.
Most DevOps guides teach what AWS services are. Production teaches what happens when 200 engineers use them together. Here's the gap.
Terraform to OpenTofu migration: compatibility, risks, tools, and production deployment patterns for AWS infrastructure.
Infrastructure drift—when your actual AWS resources differ from what your IaC declares—causes silent failures and makes disaster recovery impossible. Learn how to detect drift systematically and fix it before it breaks production.
One bad `terraform apply` can delete your database, destroy your application load balancer, or lock your team out of AWS. This guide covers the approval gates, plan review processes, and safety tools that prevent infrastructure disasters.
Most teams are 2-3 major AWS provider versions behind. Old providers miss new AWS features, have security risks, and diverge from current best practices. This guide covers how to audit, upgrade, test, and rollback safely.
Terraform state is the source of truth for your infrastructure. When it breaks, your entire IaC strategy breaks with it. This guide covers state imports, moves, emergency repairs, and the backend best practices that prevent state disasters on AWS.
CI/CD infrastructure is invisible until your DevOps bill hits $15,000/month. Build minutes, artifact storage, and ephemeral environments accumulate costs that few teams track. Here is how to measure and control them.
Terraform is the multi-cloud default. CDK ships AWS features the day they GA. Language support, state management, multi-cloud flexibility, and the trade-off that determines which IaC tool fits your team — plus when running both is the right answer.