为使用 for_each 创建的死信队列添加 SQS 重新驱动策略时如何修复错误消息

Question

我希望 terraform 将我的 SQS 管理事件与我的 DLQ 管理事件相关联，并且我希望对 SQS 数据事件和 DLQ 数据事件进行相同的操作。当我在下面的代码上运行应用程序时收到错误消息。请我需要一些帮助。

.tfvars

sqs_queue_names = ["CloudTrail_SQS_Management_Event", "CloudTrail_SQS_Data_Event"]

dead_queue_names = ["CloudTrail_DLQ_Management_Event", "CloudTrail_DLQ_Data_Event"]

main.tf

resource "aws_sqs_queue" "CloudTrail_SQS"{

    for_each                   = var.sqs_queue_names
    name                       = each.value
    redrive_policy = jsonencode({
        deadLetterTargetArn    = values(aws_sqs_queue.CloudTrail_SQS_DLQ)[*].arn
        maxReceiveCount        = var.max_receive_count
    })

    tags = var.default_tags
    
}

resource "aws_sqs_queue" "CloudTrail_SQS_DLQ"{

    for_each                   = var.dead_queue_names
    name                       = each.value
   
    tags = var.default_tags
}

Error: error creating SQS Queue (CloudTrail_SQS_Management_Event): InvalidParameterValue: Value {"deadLetterTargetArn":["arn:aws:sqs:us-east-1:123456789012:CloudTrail_DLQ_Data_Event","arn:aws:sqs:us-east-1:123456789012:CloudTrail_DLQ_Management_Event"],"maxReceiveCount":10} for parameter RedrivePolicy is invalid. Reason: Invalid value for deadLetterTargetArn.
│       status code: 400, request id: 9663b896-d86f-569e-92e2-e17152c2db26
│ 
│   with aws_sqs_queue.CloudTrail_SQS["CloudTrail_SQS_Management_Event"],
│   on main.tf line 5, in resource "aws_sqs_queue" "CloudTrail_SQS":
│    5: resource "aws_sqs_queue" "CloudTrail_SQS"{
│ 
╵
╷
│ Error: error creating SQS Queue (CloudTrail_SQS_Data_Event): InvalidParameterValue: Value {"deadLetterTargetArn":["arn:aws:sqs:us-east-1:123456789012:CloudTrail_DLQ_Data_Event","arn:aws:sqs:us-east-1:123456789012:CloudTrail_DLQ_Management_Event"],"maxReceiveCount":10} for parameter RedrivePolicy is invalid. Reason: Invalid value for deadLetterTargetArn.
│       status code: 400, request id: 88b8e4c5-1d50-5559-92f8-bd2297fd231f
│ 
│   with aws_sqs_queue.CloudTrail_SQS["CloudTrail_SQS_Data_Event"],
│   on main.tf line 5, in resource "aws_sqs_queue" "CloudTrail_SQS":
│    5: resource "aws_sqs_queue" "CloudTrail_SQS"{

Answer 1

有几种方法可以做到这一点。一种方法如下：

resource "aws_sqs_queue" "CloudTrail_SQS"{

    for_each                   = {for idx, val in var.sqs_queue_names: idx => val}
    name                       = each.value
    redrive_policy = jsonencode({
        deadLetterTargetArn    = values(aws_sqs_queue.CloudTrail_SQS_DLQ)[each.key].arn
        maxReceiveCount        = var.max_receive_count
    })

    tags = var.default_tags   
}

resource "aws_sqs_queue" "CloudTrail_SQS_DLQ"{

    for_each                   = toset(var.dead_queue_names)
    name                       = each.value
   
    tags = var.default_tags
}

在上面，您创建 index 变量作为 for_each 的键，并使用它来引用 DLQ 值。