statuspage-toolkit/template.yml at main · PRX/statuspage-toolkit · GitHub

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AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31

Description: A collection of utilities that integrate with Statuspage

Parameters:
  CrossAccountSharingRoleName:
    { Type: String, Default: CloudWatch-CrossAccountSharingRole }
  StatuspageApiKey: { Type: String }

Resources:
  MetricsShipperFunction:
    Type: AWS::Serverless::Function
    Properties:
      Architectures: [arm64]
      CodeUri: src/metrics-shipper
      Description: >-
        Fetches various metrics from CloudWatch and sends them to Statuspage
        as system metrics
      Environment:
        Variables:
          STATUSPAGE_API_KEY: !Ref StatuspageApiKey
          CLOUD_WATCH_SHARING_ROLE_NAME: !Ref CrossAccountSharingRoleName
      Events:
        Cron:
          Properties:
            Description: Ships metrics to Statuspage
            Schedule: rate(3 minutes)
            State: ENABLED
          Type: Schedule
      Handler: index.handler
      MemorySize: 129
      Policies:
        - Statement:
            - Action: sts:AssumeRole
              Effect: Allow
              Resource: !Sub arn:aws:iam::*:role/${CrossAccountSharingRoleName}
          Version: "2012-10-17"
      Runtime: nodejs24.x
      Tags:
        prx:meta:tagging-version: "2021-04-07"
        prx:cloudformation:stack-name: !Ref AWS::StackName
        prx:cloudformation:stack-id: !Ref AWS::StackId
        prx:ops:environment: Production
        prx:dev:application: Statuspage Toolkit
      Timeout: 30
  MetricsShipperLogGroup:
    Type: AWS::Logs::LogGroup
    DeletionPolicy: Delete
    UpdateReplacePolicy: Delete
    Properties:
      LogGroupName: !Sub /aws/lambda/${MetricsShipperFunction}
      RetentionInDays: 5
      Tags:
        - { Key: prx:meta:tagging-version, Value: "2021-04-07" }
        - { Key: prx:cloudformation:stack-name, Value: !Ref AWS::StackName }
        - { Key: prx:cloudformation:stack-id, Value: !Ref AWS::StackId }
        - { Key: prx:ops:environment, Value: Production }
        - { Key: prx:dev:application, Value: Statuspage Toolkit }
  MetricsShipperErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmName: !Sub WARN [Statuspage] Metrics shipper <prod> FUNCTION ERRORS (${AWS::StackName})
      AlarmDescription: >-
        The Lambda function that ships metrics from CloudWatch to Statuspage
        failing, so system metrics on the PRX status page may be incorrect.
      ComparisonOperator: GreaterThanThreshold
      Dimensions:
        - Name: FunctionName
          Value: !Ref MetricsShipperFunction
      EvaluationPeriods: 1
      MetricName: Errors
      Namespace: AWS/Lambda
      Period: 60
      Statistic: Sum
      Tags:
        - { Key: prx:meta:tagging-version, Value: "2021-04-07" }
        - { Key: prx:cloudformation:stack-name, Value: !Ref AWS::StackName }
        - { Key: prx:cloudformation:stack-id, Value: !Ref AWS::StackId }
        - { Key: prx:ops:environment, Value: Production }
        - { Key: prx:dev:application, Value: Statuspage Toolkit }
      Threshold: 1
      TreatMissingData: notBreaching