使用terraform中的单个Dynamodb资源，创建3个不同名称的表

Question

我有一个用例，我需要创建3个dynamodb表，但只有命名约定更改了

resource "aws_dynamodb_table" "GB_SKU_COLOR" {
name         = "GB_SKU_COLOR_${var.stage}"
billing_mode = "PAY_PER_REQUEST"
hash_key     = "PRODUCT_ID"
stream_enabled   = true
stream_view_type = "NEW_AND_OLD_IMAGES"
attribute {
name = "PRODUCT_ID"
type = "S"
}
}

我需要用两个不同的名称创建同一个表，如MN_SKU_COLOR和CH_SKU_COLOR目前，我正在复制资源并赋予一个新名称

resource "aws_dynamodb_table" "MN_SKU_COLOR" {
name         = "MN_SKU_COLOR_${var.stage}"
billing_mode = "PAY_PER_REQUEST"
hash_key     = "PRODUCT_ID"
stream_enabled   = true
stream_view_type = "NEW_AND_OLD_IMAGES"
attribute {
name = "PRODUCT_ID"
type = "S"
}
}
resource "aws_dynamodb_table" "CH_SKU_COLOR" {
name         = "CH_SKU_COLOR_${var.stage}"
billing_mode = "PAY_PER_REQUEST"
hash_key     = "PRODUCT_ID"
stream_enabled   = true
stream_view_type = "NEW_AND_OLD_IMAGES"
attribute {
name = "PRODUCT_ID"
type = "S"
}
}

在不复制代码的情况下创建资源3次的最佳方法是什么？

Answer 1

如果唯一的区别是名称，那么您可以执行：

variable "names" {
default = ["MN_SKU_COLOR", "GB_SKU_COLOR", "CH_SKU_COLOR"]
}

resource "aws_dynamodb_table" "table" {

for_each     = toset(var.names)  

name         = "${each.key}_${var.stage}"
billing_mode = "PAY_PER_REQUEST"
hash_key     = "PRODUCT_ID"
stream_enabled   = true
stream_view_type = "NEW_AND_OLD_IMAGES"
attribute {
name = "PRODUCT_ID"
type = "S"
}
}

然后使用variable中的名称引用各个表，例如

aws_dynamodb_table.table["MN_SKU_COLOR"].id

Answer 2

将for_each与名称集或列表一起使用：https://www.terraform.io/language/meta-arguments/for_each