Immutable infrastructure is the practice of never modifying running systems — instead, you build new artifacts in CI/CD, promote them through environments, and replace the old ones entirely.
The companion to 'Terraform the Hard Way.' Same twenty-one crossroads, framed against what each one looks like under a framework that's already made the decisions. With concrete Atmos snippets at every step.
A guided checklist of every decision you'll make on the road from `terraform apply` to production. Not a recommendation — an education. Borrowed in spirit from Kelsey Hightower's 'Kubernetes the Hard Way.'
Your lead engineer thinks 10 AWS accounts is overkill. Here's why starting clean is weeks of work, while untangling later is 6-12 months of migration pain.
Ready to build enterprise-grade Terraform? This guide covers the architectural patterns, governance frameworks, and practical implementation steps that successful teams use to balance compliance with team autonomy.
Why a battle-tested, opinionated reference architecture is a better starting point than building a custom AWS architecture from zero — and how successful teams avoid common traps.