AWS DynamoDB Cross Region Replicator

Introduction

ddbr.sh is a script designed for migrating DynamoDB tables across two regions.

The tool uses AWS command line tool and mainly AWS Data Pipeline in order to move data across the regions.

Prerequisites

• aws command line tool configured with a profile
• Tables should be already set up in destination region
• S3 bucket(s) required for temporary data storage and logging

Usage

Usage: ./ddbr.sh [--profile <arg>] [--source-region <arg>] [--destination-region <arg>] [--pipeline-definition <arg>] [--s3-temp <arg>] [--s3-log <arg>] [--table <arg>] [-v|--verbose] [-h|--help]
	--profile: AWS profile (default: 'default')
	--source-region: From region (no default)
	--destination-region: To region (no default)
	--pipeline-definition: Data-pipeline definition (no default)
	--s3-temp: S3 path to store temporary data (no default)
	--s3-log: S3 path to store log files (no default)
	--table: table to replicate (empty by default)
	-v,--verbose: Set verbose output (can be specified multiple times to increase the effect)
	-h,--help: Prints help

Credits

This script was made with help of:

• Sample DynamoDB cross region copy
• Argbash script skeleton generator