是否可以使用 Terraform 为 AutoScaling 组的同一 CloudWatch 警报创建多个条件？

Question

这是我的资源，我需要它遵循 2 个条件：

ASG 最小尺寸 > 阈值

ASG 最小尺寸 < 阈值

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

根据 AWS cloudformation 文档， comparison_operator是一个字符串，因此您不能有多个条件。 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，您可以组合多个警报以进行复合。

Cloudformation 文档Terraform 文档