列表输入变量的地形图-For_each

Question

我正在尝试为列表输入变量的映射实现for_each。

输出应该是为AZ us-east-1a（3个子网）和us-east-1b（2个子网）创建的子网列表。

需要以下帮助：

MAIN.TF

resource "aws_vpc" "name" {
  cidr_block = "192.168.0.0/16"
}

resource "aws_subnet" "name" {
  for_each = var.subnetcidr
  vpc_id = aws_vpc.name.id
  availability_zone = each.key
  cidr_block = toset(each.value) //need help here
}

TFVARS文件

subnetcidr = {
  "us-east-1a" = ["192.168.1.0/24","192.168.2.0/24","192.168.0.0/24"]
  "us-east-1b" = ["192.168.3.0/24","192.168.4.0/24"]
}

错误：

Error: Incorrect attribute value type

  on main.tf line 28, in resource "aws_subnet" "name":
  28:   cidr_block = toset(each.value)
    |----------------
    | each.value is tuple with 2 elements

Inappropriate value for attribute "cidr_block": string required.

任何帮助将不胜感激。 TIA！

Answer 1

错误似乎很明显：
Inappropriate value for attribute "cidr_block": string required
不确定为什么要传递列表...

---

如果您需要将其保留为列表，则一个选项可能会获取第一个值：

resource "aws_vpc" "name" {
  cidr_block = "192.168.0.0/16"
}

resource "aws_subnet" "name" {
  for_each = var.subnetcidr
  vpc_id = aws_vpc.name.id
  availability_zone = each.key
  cidr_block = element(each.value, 0)
}

---

如果您可以更改subnetcidr变量，请输入类似以下内容：

subnetcidr = {  
  "192.168.0.0/24" = "us-east-1a"
  "192.168.1.0/24" = "us-east-1a"
  "192.168.2.0/24" = "us-east-1a"

  "192.168.3.0/24" = "us-east-1b"
  "192.168.4.0/24" = "us-east-1b"
}

您现在可以看到，唯一的cidr块是键，区域是值。
然后在您的代码中，我们这样做：

resource "aws_vpc" "name" {
  cidr_block = "192.168.0.0/16"
}

resource "aws_subnet" "name" {
  for_each = var.subnetcidr
  vpc_id = aws_vpc.name.id
  availability_zone = each.value
  cidr_block = each.key
}

Answer 2

我终于能够解决这个问题。下面是方法。

资源“ aws_vpc”“名称” {

cidr_block =“ 10.0.0.0/16”

}

资源“ aws_subnet”“名称” {

vpc_id = aws_vpc.name.id

for_each =转置（var.subnet）

availability_zone = each.value [0]

cidr_block = each.key

}

可变子网{}

子网= {

“ us-east-1a” = [“ 10.0.0.0/20”，“ 10.0.16.0/20”，“ 10.0.32.0/20”]

“ us-east-1b” = [“ 10.0.64.0/20”，“ 10.0.80.0/20”]

“ us-east-1d” = [“ 10.0.112.0/20”，“ 10.0.128.0/20”，“ 10.0.144.0/20”，“ 10.0.96.0/20”]

}