azure - 输出的 Terraform 条件

Question

子网名称将根据 env 是非产品还是产品而有所不同。无法同时使用 count 和 for_each 基于下面的引用错误。

需要两件事之一:仅当 env 是 prod 时才执行资源 block ？或者如果未从资源中找到值，则使用 output.tf 来忽略错误。

 resource "azurerm_subnet" "subnet" {
     count               = var.environment == "prd" ? 1 : 0 //execute block only if env is prod
      for_each             = var.subnet_names
      name                 = join("",["test-","${var.environment}",each.key,"-snet"])
      resource_group_name  = azurerm_virtual_network.vnet.resource_group_name
      virtual_network_name = azurerm_virtual_network.vnet.name
      address_prefixes     = tolist(each.value) 
      }

变量.tf

variable "subnet_names" {
  description = "subnet names"
  default = {}
  type        = map

}

variable "environment" {
  description = "Name of prod environment"
  default     = "prd"
}

tfvar:

subnet_names = {
   "s1-uat" = ["20.0.0.0/27"] ,
   "s1-qa" = ["20.0.0.32/27"] ,
  "s2-qa" = ["20.0.0.64/27"] ,
   "s2-uat" = ["20.0.0.96/27"]
}


environment = "prd"

输出.tf

 "s1_subnet_name" {
  value       = azurerm_subnet.subnet["s1-uat"].name
  depends_on = [
azurerm_subnet.subnet
]
}

错误:“count”和“for_each”元参数是互斥的，只有一个应该用于明确要创建的资源数量。

Answer 1

您只能使用 count 或 for_each。所以你可以试试这个:

resource "azurerm_subnet" "subnet" {
     count               = var.environment == "prd" ? length(var.subnet_names) : 0      
      name                 = join("",["test-","${var.environment}",each.key,"-snet"])
      resource_group_name  = azurerm_virtual_network.vnet.resource_group_name
      virtual_network_name = azurerm_virtual_network.vnet.name
      address_prefixes     = tolist(each.value) 
      }

对于名称和地址前缀，您可以使用 count.index 而不是使用 'each' 。在 terraform 中 count 不支持 each