Terraform 使用带有标记的count.index构建地形

使用terraform，我试图使用count.index将计数包含在我的资源的标记中，但出现以下错误：

错误：属性值类型不正确 │ │ 在..\modules\sn\resources.tf第16行的资源“aws\U子网”“产品编号”中： │ 16:tags=var.sn_tags[count.index] │ ├──────────────── │ │ count.index是一个数字，只有在应用后才知道 │ │ var.sn_标记是字符串列表，只有在应用后才知道 │ │ 属性“标记”的值不正确：需要字符串映射

vars.tf

variable "sn_tags" {
  type        = list (string)
  default     = ["aa", "bb"]
}

resource "aws_subnet" "prod_sn" {
  count                   = length(var.sn_cidr)
  vpc_id                  = var.vpc_id
  cidr_block              = var.sn_cidr[count.index]
  availability_zone       = data.aws_availability_zones.azs.names[count.index]
  tags                    = var.sn_tags[count.index] 
}

# Create Public Subnet on availability_zone "3a"
module "publicSn-a" {
  source            = "../modules/sn"
  vpc_id            = module.vpc.vpcId 
  sn_cidr           = ["10.0.1.0/24", "10.0.2.0/24"]
  sn_tags           = ["prodPublicA","prodPublicB"]
  
}

resources.tf

variable "sn_tags" {
  type        = list (string)
  default     = ["aa", "bb"]
}

resource "aws_subnet" "prod_sn" {
  count                   = length(var.sn_cidr)
  vpc_id                  = var.vpc_id
  cidr_block              = var.sn_cidr[count.index]
  availability_zone       = data.aws_availability_zones.azs.names[count.index]
  tags                    = var.sn_tags[count.index] 
}

# Create Public Subnet on availability_zone "3a"
module "publicSn-a" {
  source            = "../modules/sn"
  vpc_id            = module.vpc.vpcId 
  sn_cidr           = ["10.0.1.0/24", "10.0.2.0/24"]
  sn_tags           = ["prodPublicA","prodPublicB"]
  
}

main.tf

variable "sn_tags" {
  type        = list (string)
  default     = ["aa", "bb"]
}

resource "aws_subnet" "prod_sn" {
  count                   = length(var.sn_cidr)
  vpc_id                  = var.vpc_id
  cidr_block              = var.sn_cidr[count.index]
  availability_zone       = data.aws_availability_zones.azs.names[count.index]
  tags                    = var.sn_tags[count.index] 
}

# Create Public Subnet on availability_zone "3a"
module "publicSn-a" {
  source            = "../modules/sn"
  vpc_id            = module.vpc.vpcId 
  sn_cidr           = ["10.0.1.0/24", "10.0.2.0/24"]
  sn_tags           = ["prodPublicA","prodPublicB"]
  
}

---

您的问题是每个循环迭代都试图将

字符串

类型传递给

标记

参数。如果将其分解为没有计数的单个资源（现在使用第一个元素），则当前代码基本上如下所示：

resource "aws_subnet" "prod_sn" {
  vpc_id                  = var.vpc_id
  cidr_block              = "10.0.1.0./24"
  availability_zone       = "eu-west-1a" # Note may not be this but the data source and the index will at least resolve to a single string AZ
  tags                    = "prodPublicA"
}

如果我们看一下，我们可以看到，它需要的是

映射

，而不是错误所暗示的

字符串

您可以通过将

list（string）

变量更改为

list（map）

来解决此问题，因此您可以使用类似以下内容：

variable "sn_tags" {
  type = list(map)
}

及

或者，如果您只想在所有子网中添加一个

名称
标记，而不想让标记具有更大的灵活性，您可以像这样对其进行返工：

variable "sn_names" {
  type = list(string)
}

resource "aws_subnet" "prod_sn" {
  count                   = length(var.sn_cidr)
  vpc_id                  = var.vpc_id
  cidr_block              = var.sn_cidr[count.index]
  availability_zone       = data.aws_availability_zones.azs.names[count.index]
  tags                    = {
    Name = var.sn_names[count.index]
  }
}

这样称呼它：

# Create Public Subnet on availability_zone "3a"
module "publicSn-a" {
  source            = "../modules/sn"
  vpc_id            = module.vpc.vpcId 
  sn_cidr           = ["10.0.1.0/24", "10.0.2.0/24"]
  sn_names          = ["prodPublicA","prodPublicB"]
}