template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  Watermark

  Sample SAM Template for Generate watermark image

# More info about Globals: https://github.com/awslabs/serverless-application-model/blob/master/docs/globals.rst
Globals:
  Function:
    Timeout: 5

Resources:
  RequestLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      ContentUri: request_layer
      CompatibleRuntimes:
        - python3.9
    Metadata:
      BuildMethod: python3.9              # Required to have AWS SAM build this layer
  PillowLayer:
    Type: AWS::Serverless::LayerVersion
    Properties:
      ContentUri: pillow_layer
      CompatibleRuntimes:
        - python3.9
    Metadata:
      BuildMethod: python3.9              # Required to have AWS SAM build this layer
  WatermarkFunction:
    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:
      MemorySize: 512 # More memory faster handling
      CodeUri: watermark/
      Handler: app.lambda_handler
      Runtime: python3.9
      Architectures:
        - x86_64
      Policies:
        - AWSLambdaExecute
        - AmazonS3FullAccess
      Layers:
        - Ref: PillowLayer
      Events:
        Watermark:
          Type: Api # More info about API Event Source: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#api
          Properties:
            Path: /watermark
            Method: post

Outputs:
  # ServerlessRestApi is an implicit API created out of Events key under Serverless::Function
  # Find out more about other implicit resources you can reference within SAM
  # https://github.com/awslabs/serverless-application-model/blob/master/docs/internals/generated_resources.rst#api
  WatermarkApi:
    Description: "API Gateway endpoint URL for Prod stage for Hello World function"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/watermark/"
  WatermarkFunction:
    Description: "Watermark Lambda Function ARN"
    Value: !GetAtt WatermarkFunction.Arn
  WatermarkFunctionIamRole:
    Description: "Implicit IAM Role created for Watermark function"
    Value: !GetAtt WatermarkFunctionRole.Arn