[WIP] dlq alarm

cdk/helpers/queue/helpers.ts

@@ -0,0 +1,44 @@
+import { IQueue } from '@aws-cdk/aws-sqs';
+
+export function alarmEachMessage(queue: IQueue) {
+    // DLQAlarm:
+    //     Type: AWS::CloudWatch::Alarm
+    // Properties:
+    //     AlarmDescription: "SQS failed"
+    // AlarmName: "SQSAlarm"
+    // Metrics:
+    //     - Expression: "m2-m1"
+    // Id: "e1"
+    // Label: "ChangeInAmountVisible"
+    // ReturnData: true
+    // - Id: "m1"
+    // Label: "MessagesVisibleMin"
+    // MetricStat:
+    //     Metric:
+    //         Dimensions:
+    //             - Name: QueueName
+    // Value: !GetAtt DLQ.QueueName
+    // MetricName: ApproximateNumberOfMessagesVisible
+    // Namespace: "AWS/SQS"
+    // Period: 300 # evaluate maximum over period of 5 min
+    // Stat: Minimum
+    // Unit: Count
+    // ReturnData: false
+    // - Id: "m2"
+    // Label: "MessagesVisibleMax"
+    // MetricStat:
+    //     Metric:
+    //         Dimensions:
+    //             - Name: QueueName
+    // Value: !GetAtt DLQ.QueueName
+    // MetricName: ApproximateNumberOfMessagesVisible
+    // Namespace: "AWS/SQS"
+    // Period: 300 # evaluate maximum over period of 5 min
+    // Stat: Maximum
+    // Unit: Count
+    // ReturnData: false
+    // ComparisonOperator: GreaterThanOrEqualToThreshold
+    // Threshold: 1
+    // DatapointsToAlarm: 1
+    // EvaluationPeriods: 1
+}