template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  budgetcategorizer
  
  SAM Template for budgetcategorizer app

Parameters:
  InputBucketName:
    Type: String
  ConfigBucketName:
    Type: String
  ConfigObjectKey:
    Type: String
  OutputQueueName:
    Type: String
  LogLevel:
    Type: String
    Default: debug
    AllowedValues:
      - debug
      - info
      - warn
      - error
      - dpanic
      - panic
      - fatal

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Runtime: provided.al2023
    Timeout: 60
    MemorySize: 512
    Architectures:
      - arm64

Resources:
  
  InputS3Bucket:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: !Ref InputBucketName
      AccessControl: Private
      PublicAccessBlockConfiguration:
        BlockPublicAcls: true
        BlockPublicPolicy: true
        IgnorePublicAcls: true
        RestrictPublicBuckets: true
      VersioningConfiguration:
        Status: Suspended
      LifecycleConfiguration:
        Rules:
          - ExpirationInDays: 1
            Status: Enabled

  BudgetCategorizerFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      CodeUri: ./
      Handler: bootstrap
      Tracing: Active # https://docs.aws.amazon.com/lambda/latest/dg/lambda-x-ray.html
      Environment: # More info about Env Vars: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#environment-object
        Variables:
          CONFIGURATION_FILE_BUCKET: !Ref ConfigBucketName
          CONFIGURATION_FILE_OBJECT_KEY: !Ref ConfigObjectKey
          PROFILING_S3_BUCKET: !Ref InputBucketName
          REGION: !Ref "AWS::Region"
          SQS_QUEUE_URL: !Join
                          - ''
                          - - 'https://sqs.'
                            - !Ref AWS::Region
                            - '.amazonaws.com/'
                            - !Ref 'AWS::AccountId'
                            - '/'
                            - !Ref OutputQueueName
          LOG_LEVEL: !Ref LogLevel
      Policies:
        - S3FullAccessPolicy:
            BucketName: !Ref InputBucketName
        - S3ReadPolicy:
            BucketName: !Ref ConfigBucketName
        - SQSSendMessagePolicy:
            QueueName: !Ref OutputQueueName
      Events:
        FileUpload:
          Type: S3
          Properties:
            Bucket: !Ref InputS3Bucket
            Events: s3:ObjectCreated:*
            Filter: 
              S3Key:
                Rules:
                  - Name: suffix
                    Value: '.csv'          

  LambdaLogGroup:
    Type: AWS::Logs::LogGroup
    DependsOn: [ BudgetCategorizerFunction ] 
    Properties:
        RetentionInDays: 3
        LogGroupName: !Join ['', ['/aws/lambda/', !Ref BudgetCategorizerFunction]]

Outputs:
  BudgetCategorizerFunction:
    Description: "Budget Categorizer Lambda Function ARN"
    Value: !GetAtt BudgetCategorizerFunction.Arn
  BudgetCategorizerFunctionIamRole:
    Description: "Implicit IAM Role created for Budget Categorizer function"
    Value: !GetAtt BudgetCategorizerFunctionRole.Arn
  S3BucketName:
    Description: "Transactions S3 bucket"
    Value: !Ref InputS3Bucket