resource "hcloud_ssh_key" "cluster" {
  name       = "${var.prefix}-${var.name}-ssh-key"
  public_key = var.ssh_public_key
}

resource "hcloud_server" "node" {
  name        = local.node_name
  image       = var.node_image
  server_type = var.instance_type
  location    = var.hcloud_location
  ssh_keys = [hcloud_ssh_key.cluster.id]

  network {
    network_id = var.hcloud_network_id
  }

  user_data = templatefile(
    format("%s/files/userdata_node.template", path.module),
    {
      username         = local.node_username
      register_command = var.cluster_registration_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 = var.ssh_private_key
    }
  }
}