variable "virtual_network_rule_ids" {
  type = list(map(string))
  default = [
    { id = "x.x.x.x" },{ id = "y.y.y.y" }
  ]
}
  
}
resource "..." {

  dynamic "virtual_network_rule" {
    for_each = var.virtual_network_rule_ids

    content {
      id = virtual_network_rule.value["id"] # etiqueta dynamic + value + key
    }
  }
}