awscliで実行
GreaterThanThresholdで閾値が0より大きい場合、アラートが上がるように
aws cloudwatch put-metric-alarm --alarm-name "StatusCheckFailed" --namespace AWS/EC2 \ --metric-name StatusCheckFailed --dimensions Name=InstanceId,Value=i-0219028c30d71bee2 --period 300 \ --statistic Average --threshold 0 --comparison-operator GreaterThanThreshold \ --evaluation-periods 1 --alarm-actions arn:aws:sns:ap-northeast-1:697333814928:Default_CloudWatch_Alarms_Topic \ --ok-actions arn:aws:sns:ap-northeast-1:697333814928:Default_CloudWatch_Alarms_Topic