This is a CFT generator for Couchbase. It creates templates that leverage MDS. This template can be deployed in different regions for XDCR.
You probably want to try simple and the instructions there before attempting this.
Creating a deployment is really simple. Run the deploy.sh command with the name of a parameters file and the name of a stack to create. For instance:
./deploy.sh simple simple_stack
The generator will create a CFT called generated.template that matches the specs in the parameter file and deploy it to AWS.