{
  "Type" : "AWS::RDS::DBInstance",
  "Properties" : {
    "DBSubnetGroupName" : {
      "Ref" : "DBSubnetGroup"
    },
    "DBParameterGroupName" :{"Ref": "RDSDBParameterGroup"},
    "Engine" : "aurora",
    "DBClusterIdentifier" : {
      "Ref" : "RDSCluster"
    },
    "PubliclyAccessible" : "true",
    "AvailabilityZone" : { "Fn::GetAtt" : [ "Subnet1", "AvailabilityZone" ] },
    "DBInstanceClass" : "db.r3.xlarge"
  }
}