引用来自 for_each 模块的输出

Question

我有一个模块，它有一个使用 for_each 定义的变量，它的输出如下：

output "nic_ids" {
    value = [for x in azurerm_network_interface.nic : x.id]
}

nic_ids = [
  "/subscriptions/*****/resourceGroups/test-rg/providers/Microsoft.Network/networkInterfaces/test-nic-1",
  "/subscriptions/*****/resourceGroups/test-rg/providers/Microsoft.Network/networkInterfaces/test-nic-2",
]

我的目标是将以上 NIC id 传递给 VM 模块，并在 NIC id 和 VM 之间进行 1:1 映射（test-nic-1 应该只附加到 vm-1 、test-nic-2 到 vm-2 等）

module "vm" {
  source  = "*****/vm/azurerm"
  version = "0.1.0"
  
   vms = var.vms
   nic_ids = module.nic[each.value.id].nic_ids 
} 

我遇到以下错误：

Error: each.value cannot be used in this context

  on main.tf line 58, in module "vm":
  58:    nic_ids = module.nic[each.value.id].nic_ids 

A reference to "each.value" has been used in a context in which it
unavailable, such as when the configuration no longer contains the value in
its "for_each" expression. Remove this reference to each.value in your
configuration to work around this error.

我用这个similar question 作为参考。 你能推荐一下吗？

Answer 1

您可以将上述 NIC id 列表传递给带有 count 的 VM 模块。

module "vm" {
  source              = "./modules/vms"
  vm_names            = ["aaa","bbb"]

  nic_ids = module.nic.network_interface_nics  
}

module "nic" {
  source = "./modules/nic"

  nic_names = ["nic1","nic2"]

}

VM 模块中的main.tf：

resource "azurerm_virtual_machine" "vm-windows" {
  count                         = length(var.vm_names)
  name                          = var.vm_names[count.index]
  resource_group_name           = data.azurerm_resource_group.vm.name
  location                      = var.location
  vm_size                       = var.vm_size
  network_interface_ids         = [ var.nic_ids[count.index] ]
...

}

网卡模块中的output.tf：

output "network_interface_nics" {
  description = "ids of the vm nics provisoned."
  value       = [for x in azurerm_network_interface.nic : x.id]
}