如何在 terraform 中获取 for_each 循环条件的输出？

Question

我有一个带有 for_each 循环条件的资源块，我想输出资源块的名称和地址前缀。

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主要.tf：

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resource "azurerm_subnet" "snets" {\n    for_each = var.subnets\n    name = each.key\n    resource_group_name = azurerm_resource_group.rg.name\n    virtual_network_name = azurerm_virtual_network.vnet.name\n    address_prefixes = [each.value]\n}\n

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我尝试过类似的方法，但没有成功。

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输出.tf

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output "azurerm-subnet" {\n    value = azurerm_subnet.snets.*.name\n}\n

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错误：

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\xe2\x94\x82 Error: Unsupported attribute\n\xe2\x94\x82\n\xe2\x94\x82   on output.tf line 2, in output "azurerm-subnet":\n\xe2\x94\x82    2:     value = azurerm_subnet.snets.*.name\n\xe2\x94\x82\n\xe2\x94\x82 This object does not have an attribute named "name".\n

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Answer 1

list这可以通过构造函数和表达式轻松完成for。我们迭代 的map导出属性并在每次迭代时azurerm_subnet.snets返回值：name

output "azurerm_subnets" {
  value = [ for subnet in azurerm_subnet.snets : subnet.name ]
}

输出azurerm_subnets将是 a list(string)，其中每个元素都是子网名称。