eps-FHIR-validator-lambda/SAMtemplates/alarms/main.yaml at 451bee9ae2f039c794cb01dd2def98126f7e1c1a · NHSDigital/eps-FHIR-validator-lambda · GitHub

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AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Description: |
  FHIR Validator Cloudwatch alarms and related resources

Parameters:
  StackName:
    Type: String

  EnableAlerts:
    Type: String

  FHIRValidatorUKCoreLambdaName:
    Type: String

Resources:
  FHIRValidatorErrorLogsMetricFilter:
    Type: AWS::Logs::MetricFilter
    Properties:
      FilterName: FHIRValidatorErrors
      # Catch java exceptions
      FilterPattern: Exception
      LogGroupName:
        Fn::ImportValue: !Sub ${StackName}:functions:${FHIRValidatorUKCoreLambdaName}:LambdaLogGroupName
      MetricTransformations:
        - MetricNamespace: LambdaLogFilterMetrics
          MetricName: !Sub ${StackName}FHIRValidatorErrorCount
          MetricValue: 1
          Unit: Count

  FHIRValidatorErrorsAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmDescription: Count of FHIR Validator system errors
      AlarmName: !Sub ${StackName}_FhirValidator_Errors
      Namespace: LambdaLogFilterMetrics
      MetricName: !Sub ${StackName}FHIRValidatorErrorCount
      Period: 60 #seconds
      EvaluationPeriods: 1
      Statistic: Sum
      ComparisonOperator: GreaterThanOrEqualToThreshold
      Threshold: 1
      Unit: Count
      TreatMissingData: notBreaching
      ActionsEnabled: !Ref EnableAlerts
      AlarmActions:
        - !ImportValue account-resources-cdk-uk:SNS:SlackAlertsSnsTopicArn:Arn
      InsufficientDataActions:
        - !ImportValue account-resources-cdk-uk:SNS:SlackAlertsSnsTopicArn:Arn
      OKActions:
        - !ImportValue account-resources-cdk-uk:SNS:SlackAlertsSnsTopicArn:Arn