amazon-Cloudformation指标警报防止在没有信息时处于警报状态

Question

我正在尝试为cloudformation中的指标创建警报

所以我有我的MetricFilter和我的Alarm如下所示：

{
    "logMetric": {
        "Type" : "AWS::Logs::MetricFilter",
        "Properties" : {
            "FilterPattern" : "[ERROR, WARNING, FATAL, Exception]",
            "LogGroupName" : "/logapp",
            "MetricTransformations" : [ {
                "MetricValue": "1",
                "MetricNamespace": "ErrorLogs/app",
                "MetricName": "AppLogMetric"
            } ]
            }
    }, 
    "AppLogAlert": {
        "Type": "AWS::CloudWatch::Alarm",
        "Properties": {
        "ActionsEnabled": "true",
        "AlarmActions":  ["arn"],
        "AlarmDescription": "trigger alert when an error is received into the app",
        "AlarmName": "app-ErrorLog-alert",
        "ComparisonOperator": "GreaterThanOrEqualToThreshold",
        "EvaluationPeriods": 1,
        "MetricName": "AppLogMetric",
        "Namespace": "ErrorLogs/app",
        "Period": 60,
        "Statistic": "Maximum",
        "Threshold": 1
        }
    }
}

这同时创建了AWS::Logs::MetricFilter和AWS::CloudWatch::Alarm，它看起来很棒，当在最后一分钟有超过1个检测时，它会进入Alarm状态。

问题是，当没有带有这些过滤器的日志时，警报不会返回到OK状态，因为图形不会显示"0“警报，它只是空白。有什么方法可以实现这一点吗？

谢谢。

Answer 1

我认为解决方案是将TreatMissingData设置为notBreaching。

我认为您的用例与kms的用例类似：Creating an Amazon CloudWatch Alarm to Detect Usage of a Customer Master Key that is Pending Deletion