Terraform计数到for_each重构

Question

试图将计数重构为for_each，并在这方面遇到困难。

local = {
      routes = [
        {
           CIDR = "192.225.0.0/16"
           Name = "rt-1"
         },
         {
           CIDR = "192.225.0.0/16"
           Name = "rt-2"
         },
         {
           CIDR = "192.225.1.0/16"
           Name = "rt-1"
         },
         {
           CIDR = "192.225.1.0/16"
           Name = "rt-2"
        },
        {
           CIDR = "192.225.0.0/16"
           Name = "rt-3"
         }
       ]
    }
Works:
   resource "aws_route" "sample" {    
     count = length(local.routes)
     route_table_id            = local.routes[count.index].Name
    destination_cidr_block    = local.routes[count.index].CIDR
   }

Don't Work:
   resource "aws_route" "sample" {
     for_each = local.routes 
     route_table_id            = local.routes[count.index].Name
     destination_cidr_block    = local.routes[count.index].CIDR
   }

获得此错误时，给定的"for_each“参数值是不合适的："for_each”参数必须是一个映射或一组字符串，并且您已经提供了一个元组类型的值。

如果我改变我的本地地图，然后它抱怨重复，任何帮助。

Answer 1

for_each元参数接受一个映射或一组字符串，而不是列表，您正在尝试传递一个列表。你可以这样做：

resource "aws_route" "sample" {
   for_each = { for entry in local.routes : "${entry.Name}.${entry.CICR}" => entry }

  route_table_id            = each.value.Name
  destination_cidr_block    = each.value.CIDR
 }

阅读有关for_each：https://www.terraform.io/language/meta-arguments/for_each#basic-syntax的更多信息