# HCloud instance for creating a single node workload cluster
resource "hcloud_server" "quickstart_node" {
  name        = "${var.prefix}-worker"
  image       = "ubuntu-20.04"
  server_type = var.instance_type
  location    = var.hcloud_location
  ssh_keys    = [hcloud_ssh_key.quickstart_ssh_key.id]

  network {
    network_id = hcloud_network.private.id
  }

  user_data = templatefile(
    "${path.module}/files/userdata_quickstart_node.template",
    {
      username         = local.node_username
      register_command = module.rancher_common.custom_cluster_command
    }
  )

  provisioner "remote-exec" {
    inline = [
      "echo 'Waiting for cloud-init to complete...'",
      "cloud-init status --wait > /dev/null",
      "echo 'Completed cloud-init!'",
    ]

    connection {
      type        = "ssh"
      host        = self.ipv4_address
      user        = local.node_username
      private_key = tls_private_key.global_key.private_key_pem
    }
  }

  depends_on = [
    hcloud_network_subnet.private
  ]
}