To start adding DNS records, we need to add a hosted zone to Route 53. As you can see in the following code, this is reasonably simple to do. The Name we are going to supply will be provided as a parameter to our CloudFormation template. Add the following code to the top of the file:

Parameters:
  DNSHostedZone: 
    Type: "AWS::Route53::HostedZone" 
    Properties: 
      Name: 
        Ref: DomainName