Cloudwatch Dashboards

Question

I want to know whether cloudwatch is capable of dynamically adding the new instance into the cloudwatch dashboard if the current instance in the asg gets terminated?

Answer

You can yes, use a **Metric Explorer** widget - you'll find Metric Explorer on **Explorer** option under **Metrics** in CloudWatch Console.

Dashboard widget definition would be something like:

```
{
    "type": "explorer",
    "properties": {
        "metrics": [
            {
                "metricName": "CPUUtilization",
                "resourceType": "AWS::EC2::Instance",
                "stat": "Average"
            }
        ],
        "labels": [
            {
                "key": "aws:autoscaling:groupName",
                "value": "my-asg-name"
            }
        ],
        "period": 300,
        "region": "us-east-1",
        "title": "Live instances in 'my-asg-name'"
    }
}
```

Cloudwatch Dashboards

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