I’m trying to get started with terragrunt but I’m using windows and unable to get terragrunt to use my key that is in KeePass Agent. I’ve tried setting GIT_SSH to plink but that doesn’t work. I’d rather not have my key outside of KeePass.
Keep in mind that Terragrunt is just a thin wrapper on top of Terraform and therefore has no natively support for SSH settings. At the end of the day, Terragrunt is just executing a bunch of Terraform commands under the hood. So as a starting point, I’d encourage you to examine Terragrunt logs and re-run the exact Terraform command that triggers your error.
Once you’ve done that, you can engage the Terraform community on this particular issue, and indeed it looks like this is a known issue.