---
name: provider-cache-registry-names
description: The list of remote registries to cached by Terragrunt Provider Cache server. By default, 'registry.terraform.io', 'registry.opentofu.org'.
type: string
env:
  - TG_PROVIDER_CACHE_REGISTRY_NAMES
---

Specifies which provider registries should be cached by the Provider Cache server. This flag is only used when the [Provider Cache Server](/features/caching/provider-cache-server) is enabled.
