如何使用CF正确配置Route53 HealthCheck警报(在悉尼)

时间:2015-05-25 08:37:21

标签: amazon-web-services amazon-route53 amazon-cloudformation amazon-cloudwatch

我已将Route53 HealthCheck配置为与CloudFormation相关联的警报,但生成的健康检查显示为未配置警报,并且CloudWatch控制台中的警报仍然无效。如果我在HealthChecks中手动创建警报,一切正常。

更糟糕的是,如果我从悉尼/ ap-southeast-2切换并在北弗吉尼亚州/ us-east-1创建相同的云形成堆栈,则警报与健康检查正确关联,一切正常!

还有一个数据点:在Route53 HealthChecks中手动创建警报时,警报在us-east-1中创建,尽管Route53是全局的,ap-southeast-1是所有其他控制台中的默认值。

我的简化堆栈如下所示:

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "healthcheck alarm test",
  "Resources": {
    "StatusHealthCheck": {
      "Type": "AWS::Route53::HealthCheck",
      "Properties": {
        "HealthCheckConfig": {
          "Port": "80",
          "Type": "HTTP",
          "ResourcePath": "/status",
          "FullyQualifiedDomainName": "testdomain.com",
          "RequestInterval": "30",
          "FailureThreshold": "1"
        },
        "HealthCheckTags": [
          {
            "Key": "Name",
            "Value": "status reachability check"
          }
        ]
      }
    },
    "StatusHealthCheckFailedAlarm": {
      "Type": "AWS::CloudWatch::Alarm",
      "Properties": {
        "ActionsEnabled": "true",
        "AlarmDescription": "alarmed when status doesn't respond",
        "ComparisonOperator": "LessThanThreshold",
        "EvaluationPeriods": "1",
        "MetricName": "HealthCheckStatus",
        "Namespace": "AWS/Route53",
        "Period": "60",
        "Statistic": "Minimum",
        "Threshold": "1.0",
        "Dimensions": [
          {
            "Name": "HealthCheckId",
            "Value": {
              "Ref": "StatusHealthCheck"
            }
          }
        ]
      }
    }
  }
}

有什么理由它应该在北弗吉尼亚州工作但不在悉尼工作吗?

2 个答案:

答案 0 :(得分:6)

HealthCheck生成的CloudWatch指标仅在美国东部地区可见,如本页底部http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/health-checks-monitor-view-status.html所述。这就是在us-east-1中创建堆栈时正常工作的原因。

答案 1 :(得分:0)

该任务只能使用lamba函数来实现,因为:

  1. 健康检查警报只能在以下区域创建:us-east-1 https://stackoverflow.com/a/32335539/1714171
  2. 由 CloudFormation 堆栈管理的资源只能与堆栈本身位于同一区域https://stackoverflow.com/a/46165480/1714171

这意味着,不可能仅使用纯 CloudFormation 语法。

您可以使用 lambda 函数创建警报,如下所示: https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/cloudwatch-examples-creating-alarms.html#cloudwatch-examples-creating-alarms-putmetricalarm