Create alarms on Metrics Insights queries - Amazon CloudWatch
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Create alarms on Metrics Insights queries

You can create alarms on Metrics Insights queries. This helps you have alarms that track multiple resources without needing to be updated later. The query catches new resources and resources that change. For example, you can create an alarm that watches the CPU utilization of your fleet, and the alarm automatically evaluates new instances that you launch after creating the alarm.

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