How can I run a null_resource only in ondestroy?

Terraform
1

Good morning,

I am trying to run a null_resource with a remote-exec only in ondestroy,

I’m trying to execute a null_resource with a remote-exec only in ondestroy, but it’s impossible.

My code:

resource "null_resource" "remove-user-gitlab-runners" {
  connection {
    type        = "ssh"
    user        = var.remote_user
    password    = var.password
    private_key = file(var.private_key_path)  
    host        = var.remote_host  
  }
 
  provisioner "remote-exec" {
    when    = destroy
    inline  = [
      "echo 'Unregistering GitLab Runner...'",
      "gitlab-runner unregister --all-runners",
      "pkill process",
    ]
  }
}

Can I do it?