template.yml

AWSTemplateFormatVersion: 2010-09-09
Transform: AWS::Serverless-2016-10-31
Parameters:
  SourceTableStreamARN:
    Type: String
    Description: DynamoDB table name of source table to be copied
  DestinationTableName:
    Type: String
    Description: DynamoDB table name of destination table to copy data to
  StreamProcessorTimeout:
    Type: Number
    Default: 60
    MinValue: 30
    MaxValue: 300
    Description: Timeout of the DynamoDB Stream Lambda function.
  StreamProcessorBatchSize:
    Default: 5
    Type: String
    Description: Batch size of DynamoDB Stream Lambda Trigger.

Resources:
  DynamoDBCopier:
    Type: 'AWS::Serverless::Function'
    Properties:
      CodeUri: target/ddb-copier-1.0.1-SNAPSHOT.jar
      Runtime: java8
      Handler: 'com.jlhood.ddbcopier.lambda.Handler::handleRequest'
      Tracing: Active
      MemorySize: 1536
      Timeout: !Ref StreamProcessorTimeout
      Policies:
        - DynamoDBCrudPolicy:
            TableName: !Ref DestinationTableName
      Environment:
        Variables:
          DESTINATION_TABLE_NAME: !Ref DestinationTableName
      Events:
        Stream:
          Type: DynamoDB
          Properties:
            Stream: !Ref SourceTableStreamARN
            StartingPosition: TRIM_HORIZON
            BatchSize: !Ref StreamProcessorBatchSize

Outputs:
  DynamoDBCopierFunctionName:
    Value: !Ref DynamoDBCopier
  DynamoDBCopierFunctionARN:
    Value: !GetAtt DynamoDBCopier.Arn