是否可以使用 Terraform 為 AutoScaling 組的同一 CloudWatch 警報創建多個條件？

Question

這是我的資源，我需要它遵循 2 個條件：

ASG 最小尺寸 > 閾值

ASG 最小尺寸 < 閾值

resource "aws_cloudwatch_metric_alarm" "GroupMinSize" {
  count               = 1
  alarm_name          = "Autoscaling_Group_Min_Size"
  comparison_operator = "GreaterThanThreshold"
  evaluation_periods  = "2"
  metric_name         = "GroupMinSize"
  namespace           = "AWS/AutoScaling"
  statistic           = "Minimum"
  period              = "120"
  threshold           = 1

  dimensions = {
    AutoScalingGroupName = aws_autoscaling_group.asg[count.index].name
  }

  alarm_description = "The minimum size of the Auto Scaling group"
}

Answer 1

根據 AWS cloudformation 文檔， comparison_operator是一個字符串，因此您不能有多個條件。 如果 cloudformation 做不到，Terraform 也做不到。

ComparisonOperator
The arithmetic operation to use when comparing the specified statistic and threshold. The specified statistic value is used as the first operand.

You can specify the following values: GreaterThanThreshold, GreaterThanOrEqualToThreshold, LessThanThreshold, or LessThanOrEqualToThreshold.

Required: Yes

Type: String

Allowed values: GreaterThanOrEqualToThreshold | GreaterThanThreshold | GreaterThanUpperThreshold | LessThanLowerOrGreaterThanUpperThreshold | LessThanLowerThreshold | LessThanOrEqualToThreshold | LessThanThreshold

但是，您可以組合多個警報以進行復合。

Cloudformation 文檔Terraform 文檔