问题描述
我在CloudWatch中有几个仪表板，它们代表我的基础结构的静态视图，例如，当前正在运行自动伸缩工作组中的实例数量，或者各种关键EC2实例的CPU /磁盘状态。但是，当我添加新实例时，总是困在手动更新仪表板的过程中，以使其包含在显示中。
I have several dashboards in CloudWatch that represent a static view of my infrastructure, for instance, how many instances from an autoscaling worker group are currently running, or the CPU/disk status of various key EC2 instances. However, when I add new instances, I am always stuck manually updating the dashboards to include them in the display.
我很好奇是否有任何方法可以通过编程方式例如通过使用AWS Lambda函数的CLI / API调用填充这些仪表板？理想的情况是，仪表板可以基于触发器进行更新，类似于Lambda函数如何根据各种事件/时间表知道何时执行。
I'm curious if there is there any way to programmatically populate these dashboards, say through a CLI/API call using an AWS Lambda function? It would be ideal if dashboards could update based on triggers similarly to how Lambda functions know when to execute based on a variety of events/a schedule.
推荐答案
迟到总比没有好，似乎带有度量表达式的 SEARCH 函数。
Better late than never, it seems that CloudWatch has implemented a SEARCH function with metric expressions.
有很好的在文档中：
SEARCH（'{AWS / EC2，InstanceId} MetricName = CPUUtilization'，'Average'，300 ）
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