Azure Resource Manager enables you to work with the resources joined as a group and allows you to deploy, update or delete all of the resources for your purpose in a single, coordinated operation. Using a Template you can very easily setup a environment (in this case RDS) and deploy that as a group of resources. Azure Resource Manager is the Management API layer for the future Microsoft Cloud!
I took the RDS template for a test-drive, the result was pretty impressive. A full RDS deployment up & running in no time!
Read the full article here Testdriving the RDS template