Terraform Lifecycle to ignore SSH-Key in metadata

Terraform Providers Google
1

I’ve added the public ssh keys via the console to instance metadata on a GCE instance. But I want to ignore this change in terraform (don’t want to add ssh keys in code) by using lifecycle ignore_changes. I’ve tried using the following but it doesn’t work:

  lifecycle {
    ignore_changes = [
      metadata.ssh-keys
    ]
  }

I know you can ignore ALL metadata but I don’t want to do that. Just want to ignore ssh keys. What is the exact name I need to use as metadata.ssh-keys doesn’t work? The plan runs as normal but still includes changes to the ssh keys when it should be ignoring them.

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