auto-scaling-CPUAlarmLow

gistfile1.json

{
    "CPUAlarmLow": {
        "Type": "AWS::CloudWatch::Alarm",
        "Properties": {
            "AlarmDescription": "Scale-down if CPU < 75% for 10 minutes",
            "MetricName": "CPUUtilization",
            "Namespace": "AWS/EC2",
            "Statistic": "Average",
            "Period": "60",
            "EvaluationPeriods": "10",
            "Threshold": "75",
            "AlarmActions": [
                {
                    "Ref": "AppServerScaleDownPolicy"
                }
            ],
            "Dimensions": [
                {
                    "Name": "AutoScalingGroupName",
                    "Value": {
                        "Ref": "AppServerGroup"
                    }
                }
            ],
            "ComparisonOperator": "LessThanThreshold"
        }
    }
}