如何在 terraform 中正确使用 for_each 中的 each.value？

Question

我正在尝试为每个用户创建一个文件，并将分配给他们的项目作为文件的内容。我很高兴得到“$ {each.value}”，因为它是一个字符串列表。请问有什么办法吗？

locals {
  data = {
    "project1" = {
      user_assigned           = ["user1", "user2", "user3"]
     }
    "project2" = {
      user_assigned           = ["user2", "user3", "user4"]
     }
  }


`
resource "local_file" "foo" {
  for_each = transpose(zipmap(keys(local.data), values(local.data)[*].user_assigned))
  content  = "${each.value}"
  filename = "${each.key}"
}

错误：

  on test.tf line 85, in resource "local_file" "foo":
  85:   content  = "${each.value}"
    |----------------
    | each.value is list of string with 2 elements

Answer 1

content 必须是字符串，但在您的情况下它是一个列表，例如["project1", "project2"]。将其转换为字符串的一种方法是通过jsonencode：

resource "local_file" "foo" {
  for_each = transpose(zipmap(keys(local.data), values(local.data)[*].user_assigned))
  content  = jsonencode(each.value)
  filename = each.key
}