Cloud Formation template for Budget, using tags

budget.yml

AWSTemplateFormatVersion: "2010-09-09"
Description: Budget alerts for various AWS services

Parameters:
  Environment:
    Type: String
    Description: Deployment environment for the budget checks
  GlueDevEndpointDPUHours:
    Type: Number
    Description: Number of Glue dev endpoint DPU hours we budget for in the period
  S3APIRequestsCost:
    Type: String
    Description: Budget in US$ for Number of S3 API requests, for in the period
  S3AccessLoggingRequestsCost:
    Type: String
    Description: Budget in US$ for Number of S3 Access Logging requests, for in the period
  NotificationsStack:
    Description: Notifications Stack Name
    Type: String
    Default: ""
  Version:
    Type: String
  BudgetTag:
    Description: Used to create AWS Budget and alerts
    Type: String
    Default: s3-access-log

Resources:
  GlueDevEndpointBudget:
    Type: AWS::Budgets::Budget
    Properties:
      Budget:
        BudgetName: !Sub "${Environment} - Glue dev endpoint DPU hours"
        BudgetType: "USAGE"
        CostFilters:
          UsageType:AWS Glue:
            - "APS2-DEVED-DPU-Hour"
        TimeUnit: MONTHLY
        BudgetLimit:
          Amount: !Ref GlueDevEndpointDPUHours
          Unit: "DPU-Hour"
      NotificationsWithSubscribers:
        - Notification:
            NotificationType: "ACTUAL"
            ComparisonOperator: "GREATER_THAN"
            Threshold: 100
            ThresholdType: "PERCENTAGE"
          Subscribers:
            - SubscriptionType: "SNS"
              Address:
                Fn::ImportValue: !Sub ${NotificationsStack}::AWSBudgetNotificationsTopic

  S3APIRequestsCostBudget:
    Type: AWS::Budgets::Budget
    Properties:
      Budget:
        BudgetName: !Sub "${Environment} - S3 API requests"
        BudgetType: COST
        CostFilters:
          UsageTypeGroup:
            - "S3: API Requests - Standard"
        TimeUnit: MONTHLY
        BudgetLimit:
          Amount: !Ref S3APIRequestsCost
          Unit: USD
      NotificationsWithSubscribers:
        - Notification:
            NotificationType: "ACTUAL"
            ComparisonOperator: "GREATER_THAN"
            Threshold: 100
            ThresholdType: "PERCENTAGE"
          Subscribers:
            - SubscriptionType: "SNS"
              Address:
                Fn::ImportValue: !Sub ${NotificationsStack}::AWSBudgetNotificationsTopic

  S3AccessLoggingRequestsCostBudget:
    Type: AWS::Budgets::Budget
    Properties:
      Budget:
        BudgetName: !Sub "${Environment} - S3 Access Logging requests"
        BudgetType: COST
        CostFilters:
          UsageTypeGroup:
            - "S3: API Requests - Standard"
          TagKeyValue: 
            - !Sub "user:Budget$${BudgetTag}"
        TimeUnit: MONTHLY
        BudgetLimit:
          Amount: !Ref S3AccessLoggingRequestsCost
          Unit: USD
      NotificationsWithSubscribers:
        - Notification:
            NotificationType: "ACTUAL"
            ComparisonOperator: "GREATER_THAN"
            Threshold: 100
            ThresholdType: "PERCENTAGE"
          Subscribers:
            - SubscriptionType: "SNS"
              Address:
                Fn::ImportValue: !Sub ${NotificationsStack}::AWSBudgetNotificationsTopic

Outputs:
  Version:
    Value: !Ref Version