Monitoring Stack

monitoring_stack.yml

Description: Monitoring Stack

Parameters:

  TopicName:
    Description: Name for the SNS topic used for the monitoring
    Type: String
  AlarmName:
    Description: Name for the CloudWatch alarm
    Type: String
  AlarmEndpoint:
    Description: Alarm integration URL
    Type: String
  AlarmProtocol:
    Description: Alarm protocol
    Type: String

Resources:

  SNSTopic:
    Type: "AWS::SNS::Topic"
    Properties:
      TopicName: !Ref TopicName
      DisplayName: !Ref TopicName

  SNSTopicPolicy:
    Type: "AWS::SNS::TopicPolicy"
    Properties:
      PolicyDocument:
        Id: SNSTopicPolicyID
        Version: "2012-10-17"
        Statement:
          Sid: ''
          Effect: Allow
          Principal:
            AWS: "*"
          Action: sns:Publish
          Resource: "*"
      Topics:
        - !Ref SNSTopic

  CloudWatchAlarm:
    Type: "AWS::CloudWatch::Alarm"
    Properties:
      AlarmName: !Ref AlarmName
      AlarmDescription: !Ref AlarmName
      AlarmActions:
        - !Ref AlarmTopic
      MetricName: NumberOfMessagesPublished
      Namespace: "AWS/SNS"
      Statistic: Sum
      Period: 3600
      EvaluationPeriods: 1
      Threshold: 10
      ComparisonOperator: LessThanThreshold
      Dimensions:
        - Name: TopicName
          Value: !GetAtt SNSTopic.TopicName

  AlarmTopic:
    Type: "AWS::SNS::Topic"
    Properties:
      DisplayName: Notification topic for monitoring
      Subscription:
        - Protocol: !Ref AlarmProtocol
          Endpoint: !Ref AlarmEndpoint