template.yml

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

Description: A collection of utilities that integrate with Classy

Parameters:
  ClassyApiClientId:
    Type: String
  ClassyApiClientSecret:
    Type: String
  Frequency:
    Type: String
    Description: In minutes, greater than 1
    Default: 2

Resources:
  ActivitySlackNotificationsFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: src/activity-slack-notifications
      Description: >-
        Polls the Classy API for recent activity, and sends messages to Slack
        for certain activities
      Environment:
        Variables:
          CLASSY_API_CLIENT_ID: !Ref ClassyApiClientId
          CLASSY_API_CLIENT_SECRET: !Ref ClassyApiClientSecret
          POLLING_FREQUENCY: !Ref Frequency
      Events:
        Poller:
          Properties:
            Description: Runs the Classy poller
            Enabled: true
            Schedule: !Sub rate(${Frequency} minutes)
          Type: Schedule
      Handler: index.handler
      MemorySize: 128
      Policies:
        - Statement:
            - Action: events:PutEvents
              Effect: Allow
              Resource: !Sub arn:${AWS::Partition}:events:${AWS::Region}:${AWS::AccountId}:event-bus/default
              Sid: AllowDefaultEventBusPut
          Version: "2012-10-17"
      Runtime: nodejs22.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: Classy Toolkit
      Timeout: 180
  ActivitySlackNotificationsLogGroup:
    Type: AWS::Logs::LogGroup
    DeletionPolicy: Delete
    UpdateReplacePolicy: Delete
    Properties:
      LogGroupName: !Sub /aws/lambda/${ActivitySlackNotificationsFunction}
      RetentionInDays: 30
      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: Classy Toolkit }
  ActivitySlackNotificationsErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmName: "MINOR [Classy] Activity Notifications <prod> EXPERIENCING ERRORS"
      AlarmDescription: >-
        The error rate on the Classy toolkit activity Slack notifications
        Lambda function has exceeded 0. Some donation activity may not be
        reaching Slack channels.
      ComparisonOperator: GreaterThanThreshold
      Dimensions:
        - Name: FunctionName
          Value: !Ref ActivitySlackNotificationsFunction
      EvaluationPeriods: 2
      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: Classy Toolkit }
      Threshold: 0
      TreatMissingData: notBreaching