SSH connection with passphrase causes infinite connection loop

[sethvargo]

Terraform Version

Terraform v0.9.6-dev (030f26b+CHANGES)

Affected Resource(s)

• core/provisioners

Terraform Configuration Files

resource "null_resource" "example" {
  connection {
    host = "1.2.3.4"
    user = "ubuntu"
  }

  provisioner "remote-exec" {
    inline = ["echo hi"]
  }
}

Expected Behavior

Terraform should prompt or error when the SSH key is secured by a password.

Actual Behavior

Terraform continuously tries to establish a remote connection (like a million times a second, spiking CPU to 100%+)

Steps to Reproduce

1. Add a passkey to an SSH key
2. Make sure the key is not added via ssh-add
3. terraform apply
4. Observe the massive output and infinite retries

Important Factoids

This only applies to people who have an SSH key secured with a password and they are not caching that password in the keychain.

The workaround is to manually run ssh-add and type in the passphrase(s), but Terraform is spamming with so much output that a CTRL + C takes 5-10min to stop after you realize this 😦.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

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