alarms.yaml

AlarmTopic:
    Type: AWS::SNS::Topic
    Properties:
        Subscription:
            - Endpoint: [email protected]
              Protocol: email

CPUAlarmHigh:
    Type: AWS::CloudWatch::Alarm
    Properties:
        EvaluationPeriods: '1'
        Statistic: Average
        Threshold: '50'
        AlarmDescription: Alarm if CPU too high or metric disappears indicating instance is down
        Period: '60'
#            AlarmActions:
#                - Ref: ScaleUpPolicy
        AlarmActions:
            - Ref: AlarmTopic
        Namespace: AWS/EC2
        Dimensions:
            - Name: AutoScalingGroupName
              Value: !Ref ECSAutoScalingGroup
        ComparisonOperator: GreaterThanThreshold
        MetricName: CPUUtilization