通过 terraform 添加多个 DynamoDB 集合项

Question

terraform 版本：0.12.20

我想在 terraform 中添加多个具有 set 数据类型的项目，我浏览了 link，其中一个示例展示了如何将简单数据类型添加为 String，但它无法使用 Set 添加

下面是我正在测试的代码

resource "aws_dynamodb_table_item" "items" {
  hash_key   = "key"
  table_name = "test"
  for_each = {
    "72" = {
      test = ["114717","2"],
      test1 = []
    },
    "25" = {
      test = ["114717"],
      test1 = []
    }
  }
  item = <<EOF
{
  "key": {"S": "${each.key}"},
  "test": {"SS": "${each.value.test}"},
  "test1": {"SS": "${each.value.test1}"}
}
EOF
}

但是，Cannot include the given value in a string template: string required. 失败

我尝试了类似的东西

resource "aws_dynamodb_table_item" "items" {
  hash_key   = "key"
  table_name = "test"
  for_each = {
    "72" = {
      test = "114717,2",
      test1 = ""
    },
    "25" = {
      test = "114717",
      test1 = ""
    }
  }
  item = <<EOF
{
  "key": {"S": "${each.key}"},
  "test": {"SS": ["${each.value.test}"]},
  "test1": {"SS": ["${each.value.test1}"]}
}
EOF
}

这无法将 "114717,2" 区分为两个不同的项目

在第二个示例中，我什至也尝试了以下部分

{
  "key": {"S": "${each.key}"},
  "test": {"SS": "${split(",",each.value.test)}"},
  "test1": {"SS": "${split(",",each.value.test1)}"}
}

Cannot include the given value in a string template: string required. 也会失败

我希望能够将值拆分为数组["114717","2"]。这将帮助我在 DynamoDB 中将值存储为 Set

Answer 1

您的item 应该是有效的 json。为此，您可以使用jsonencode:

resource "aws_dynamodb_table_item" "items" {
  hash_key   = "key"
  table_name = "GameScores"
  for_each = {
    "72" = {
      test = ["114717","2"],
      test1 = []
    },
    "25" = {
      test = ["114717"],
      test1 = []
    }
  }
  item = <<EOF
{
  "key": {"S": "${each.key}"},
  "test": {"SS": ${jsonencode(each.value.test)}},
  "test1": {"SS": ${length(each.value.test1) > 0 ? jsonencode(each.value.test1) : jsonencode([""])}}
}
EOF
}

还有SS 不能为空，所以你必须考虑到这一点。因此，您必须检查并使用[""] 数组。或者你必须重新考虑如果你的test1 是[] 怎么办。