将现有 SNS 主题分配给 Terraform 中的警报

Question

我有一个未使用 Terraform 管理的现有 SNS 主题，我想引用它，因此我可以在 aws_cloudwatch_metric_alarm.alarm_actions 列表中分配它。在尝试运行计划或申请时，我收到以下消息：

unknown resource 'aws_sns_topic.my-alerts' referenced in variable aws_sns_topic.my-alerts.arn

根据消息判断，我猜我必须以某种方式创建 SNS 资源，但我不确定如何 attach/reference 它与现有主题。

我正在引用数据块中的现有主题：

data "aws_sns_topic" "my-alerts" {
  name = "my-alerts"
}

然后尝试稍后在警报中使用：

resource "aws_cloudwatch_metric_alarm" "app-health-alarm" {
  alarm_name                = "app-health-alarm"
  comparison_operator       = "GreaterThanOrEqualToThreshold"
  evaluation_periods        = "2"
  metric_name               = "ApplicationComponetHealthRequestFailing"
  namespace                 = "ApplicationComponetHealth"
  period                    = "300"
  statistic                 = "Average"
  dimensions                = {
                                component="my-app"
                              }
  threshold                 = "1"
  alarm_description         = "Checks the health of the app"
  datapoints_to_alarm       = "2"
  alarm_actions             = ["${aws_sns_topic.my-alerts.arn}"]
}

Answer 1

引用数据源时需要在其前面加上data.

前缀

所以在你的情况下应该是：

resource "aws_cloudwatch_metric_alarm" "app-health-alarm" {
  alarm_name                = "app-health-alarm"
  comparison_operator       = "GreaterThanOrEqualToThreshold"
  evaluation_periods        = "2"
  metric_name               = "ApplicationComponetHealthRequestFailing"
  namespace                 = "ApplicationComponetHealth"
  period                    = "300"
  statistic                 = "Average"
  dimensions                = {
                                component="my-app"
                              }
  threshold                 = "1"
  alarm_description         = "Checks the health of the app"
  datapoints_to_alarm       = "2"
  alarm_actions             = ["${data.aws_sns_topic.my-alerts.arn}"]
}

将现有 SNS 主题分配给 Terraform 中的警报

Assign existing SNS Topic to Alarm in Terraform

amazon-web-services

amazon-sns

terraform