[mixedCase]

Terragrunt is not an anti-pattern, but it is a tool that is easier to get wrong than Terraform and so people create great messes with it.

Used right it's the only way to remain sane on any non-trivial set of infra where you don't end up hand-rolling a half-baked version of Terragrunt.

[busterarm]

Managing 10^5 servers right now with Terragrunt. Can confirm, it's the only way to stay sane.

Getting to this point was a learning process though. Probably six solid years of investment now.

[dilyevsky]

From experience terragrunt + atlantis has been much better experience than hashicorp's own terraform enterprise service.

[busterarm]

not using terraform enterprise.