Terraform-具有多个计数的无效索引错误

Question

我正在尝试配置2个公共IP地址和2个网络接口。到目前为止，我写的是：

resource "azurerm_public_ip" "example" {
  name                    = "test-pip${count.index}"
  count = 2
  location                = "${azurerm_resource_group.rc.location}"
  resource_group_name     = "${azurerm_resource_group.rc.name}"
  allocation_method       = "Dynamic"
  idle_timeout_in_minutes = 30
}
output "public_ip_address" {
  value = "${azurerm_public_ip.example.*.id}"
}

resource "azurerm_network_interface" "main" {
  name                = "test${count.index}"
  count = 2
  location            = "${azurerm_resource_group.rc.location}"
  resource_group_name = "${azurerm_resource_group.rc.name}"

    ip_configuration {
    name                          = "testconfiguration1${count.index}"
    subnet_id                     = "${azurerm_subnet.internal.id}"
    private_ip_address_allocation = "Dynamic"
    public_ip_address_id          = "${azurerm_public_ip.example[count.index].id}"
  }
}

稍后，我将使用这两个IP和NI将它们分配给2台VM计算机。

当我运行terraform plan时，出现一条错误消息：

Terraform版本为"v0.12.3"，Azure提供者版本为"v1.40.0"

Answer 1

鉴于这是Terraform 0.12，而不是问题语法所暗示的Terraform 0.11，所以实际错误出在特定的导出属性中。要访问azurerm_public_ip.example资源导出的ip地址，我们需要使用ip_address导出的属性，而不是id。这就是为什么为无效密钥抛出错误的原因，尽管错误中的特定引用确实确实具有误导性。

我们可以通过以下方式更新您的代码以解决此问题：

ip_configuration {
  name                          = "testconfiguration1${count.index}"
  subnet_id                     = "${azurerm_subnet.internal.id}"
  private_ip_address_allocation = "Dynamic"
  public_ip_address_id          = "${azurerm_public_ip.example[count.index].ip_address}"
}

Answer 2

你可以尝试像这样更改代码，它对我有用：

public_ip_address_id = "${element(azurerm_public_ip.example.*.id, count.index)}"