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 address_prefixes。

main.tf:

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

我试过类似的方法，但没有用。

output.tf

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

错误：

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

Answer 1

这可以通过 list 构造函数和 for 表达式轻松实现。我们遍历导出属性的 map azurerm_subnet.snets 和 return 每次迭代的 name 值：

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

并且输出 azurerm_subnets 将是一个 list(string)，其中每个元素都是子网名称。

如何在 terraform 中获取 for_each 循环条件的输出？

How to get output for for_each loop condition within terraform?

terraform

terraform-provider-azure