Resources:
  ThumbnailFunction:
    Type: AWS::Serverless::Function
    Properties:
      CodeUri: s3://sam-demo-bucket/thumbnails.zip
      Handler: index.generate_thumbails
      Runtime: nodejs12.x
      Events:
        ImageBucket:
          Type: S3
          Properties:
            Bucket:
              Ref: Images
            Events:
            - s3:ObjectCreated:*
            - s3:ObjectRemoved:*

  Images:
    Type: AWS::S3::Bucket
    Properties:
      BucketName: BucketNameParameter
      BucketEncryption:
        ServerSideEncryptionConfiguration:
        - ServerSideEncryptionByDefault:
            SSEAlgorithm: AES256