# Terraform Enterprise OIDC Credential for GCP Workload Identity Federation
This is a helper module to prepare GCP Credentials from Terraform Enterprise workload identity token. For more information see [Terraform Enterprise Workload Identity Federation](../) blueprint.
| [impersonate_service_account_email](variables.tf#L17) | Service account to be impersonated by workload identity federation. | <code>string</code> | ✓ | |
| [tmp_oidc_token_path](variables.tf#L22) | Name of the temporary file where TFC OIDC token will be stored to authentificate terraform provider google. | <code>string</code> | | <code>".oidc_token"</code> |