Terragrunt addresses the operational complexity that emerges when Terraform or OpenTofu projects grow beyond a handful of modules. Teams managing dozens or hundreds of infrastructure components across multiple environments face repetitive backend configuration, duplicated variable definitions, and manual orchestration of cross-module dependencies. Terragrunt wraps the underlying IaC tool with a thin orchestration layer that generates backend configurations, manages remote state, and resolves dependency ordering automatically through a declarative HCL configuration that references other modules.
The 1.0 release marked a significant milestone with stacks that group related infrastructure components into deployable units, filters for selective execution across large monorepos, and run reports that provide visibility into what changed across multi-module operations. The backward compatibility guarantees accompanying the stable release give teams confidence to adopt Terragrunt in regulated environments where infrastructure tooling stability matters. The free CI/CD tier through Terragrunt Scale adds managed execution without requiring teams to build their own pipeline infrastructure.
With over 9,400 GitHub stars and a decade of production use across organizations of all sizes, Terragrunt has become the de facto orchestration standard for Terraform-heavy teams. The MIT license enables unrestricted use, and the YAML-free HCL configuration fits naturally into existing Terraform workflows. Gruntwork, the company behind Terragrunt, raised funding to support continued development alongside their broader infrastructure-as-code library, positioning Terragrunt as the coordination layer between individual Terraform modules and the CI/CD systems that deploy them.
