for_each 用于字符串列表

Question

我正在 terraform 云中创建一个变量，并使用该变量作为输入来创建一个random_pet资源。

resource "tfe_variable" "names" {
  key          = "name_prefixes"
  value        = jsonencode(yamldecode(file("names_list.yaml")))
  workspace_id = "ws-id"
  hcl          = true
  category     = "terraform"  
}

resource "random_pet" "pet" {
  for_each = toset(tfe_variable.names.key)
  prefix = each.key
}

cat names_list.yaml

---
- "tfe"
- "tfc"
- "ansible"
- "puppet"

我收到一个错误：

Error: Invalid function argument
on main.tf line 12, in resource "random_pet" "pet":
  for_each = toset(tfe_variable.names.key)
Invalid value for "v" parameter: cannot convert string to set of any single type.

你能建议吗？

Answer 1

您只有一个tfe_variable.names实例。 因此，没有什么可以迭代的。 所以你应该有：

resource "random_pet" "pet" {
  prefix = tfe_variable.names.key
}

更新

resource "tfe_variable" "names" {

  key          = "name_prefixes"
  value        = jsonencode(yamldecode(file("names_list.yaml")))
  workspace_id = "ws-id"
  hcl          = true
  category     = "terraform"  
}

resource "random_pet" "pet" {
  for_each = toset(yamldecode(file("names_list.yaml")))
  prefix = each.value
}