terragrunt prefers opentofu over terraform

[nejec]

After the upgrade from docker-terragrunt:aws-tf-1.7.4-tg-0.55.10 to docker-terragrunt:aws-tf-1.8.2-tg-0.58.2 all providers references in the terraform state file went from registry.terraform.io to registry.opentofu.io, which is caused because terragrunt is using tofu instead of terraform.

$ terragrunt terragrunt-info
{
  "ConfigPath": "/data/terragrunt.hcl",
  "DownloadDir": "/data/.terragrunt-cache",
  "IamRole": "",
  "TerraformBinary": "tofu",
  "TerraformCommand": "terragrunt-info",
  "WorkingDir": "/data"
}

Currently, the image name itself is deceiving that it is primarily terraform based but behind the scenes it is actually using tofu binary.

Even this is probably not intentional, i suggest splitting images into terraform and opentofu versions.

[ChristophShyper]

Hello! Thanks for pointing that out. In my daily work I use slightly modified version of this module and it uses terraform.
I was not aware terragrunt switches to opentofu. Will have a look at it.

[ChristophShyper]

I've just added separate versioning for OpenTofu with release https://github.com/devops-infra/docker-terragrunt/releases/tag/tf-1.8.3-ot-1.7.0-tg-0.58.3. So the two binaries don't need to fight :)
It can be used devopsinfra/docker-terragrunt:tf-1.8.3-tg-0.58.3 for Terraform.
And devopsinfra/docker-terragrunt:ot-1.7.0-tg-0.58.3 for OpenTofu.

[nejec]