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Terragrunt

Terragrunt is a thin wrapper over Terraform or OpenTofu: it generates backend and provider boilerplate, shares inputs, and wires unit dependencies. This course covers terragrunt.hcl, DRY remote state, includes, run-all, multi-account layouts, and hooks. It does not replace Terraform, and run-all across an estate is a blast radius, not a convenience feature.

Advanced3 sections · 12 lessons · ~5h total · 14-question self-test

01

Terragrunt fundamentals

4 lessons

01Why Terragrunt existsThe DRY and state problems it solves.12 min 02Install & the terragrunt.hcl modelWrapping a Terraform module.12 min 03Generating backend & provider configStop copy-pasting boilerplate.12 min 04The execution modelHow Terragrunt calls Terraform.10 min

02

State, inputs & dependencies

4 lessons

01DRY remote stateOne backend block for the whole repo.14 min 02Inputs, includes & localsShare config across units.12 min 03Dependencies & outputsWire modules together safely.14 min 04run-all across many unitsApply a whole environment.12 min

03

Layout, hooks & delivery

4 lessons

01Multi-account & multi-region layoutsStructure a real estate.14 min 02Hooks & mocksBefore/after actions and plan-time mocks.12 min 03Remote-state & credential securityProtect the crown jewels.14 min 04Terragrunt in CI/CDPlan/apply many units safely.12 min

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Final exam

Test yourself on everything

14 questions drawn from all 3 sections — every answer explained as you pick.

Start final exam