title: CloudFormation templates for Global Aurora Database
body: <p>I am trying to write Cloudformation template to get a aws Global Aurora Database. However I am not able to figure out where and how to add the Global database identifier. Can someone help Cloudformation snippet?</p>
  
  <p>below is my code:</p>
  
  <pre><code>Description: RDS Aurora MySQL cluster.
  Parameters:
      DatabaseName:
        Default: "testglobalaurora"
        Description: The database name 
        Type: String
  
      DatabaseInstanceType:
          Default: db.r4.large
          AllowedValues:
              - db.r4.large
              - db.r4.xlarge
              - db.r4.2xlarge
              - db.r4.4xlarge
              - db.r4.8xlarge
              - db.r4.16xlarge
          Description: "The instance type to use for the database."
          Type: String
  
      DatabasePassword:
          Default: "testglobalaurora"
          AllowedPattern: "[a-zA-Z0-9]+"
          ConstraintDescription: must contain only alphanumeric characters. Must have length 8-41.
          Description: The database admin account password. 
          MaxLength: '41'
          MinLength: '8'
          NoEcho: 'true'
          Type: String
  
      DatabaseUsername:
          Default: "testglobalaurora"
          AllowedPattern: "[a-zA-Z0-9]+"
          ConstraintDescription: must contain only alphanumeric characters. Must have length 1-16
          Description: The database admin account user name. 
          MaxLength: '16'
          MinLength: '1'
          Type: String
  
  Metadata:
      AWS::CloudFormation::Interface:
          ParameterGroups:
              - Label:
                  default: Database Configuration
                Parameters:
                  - DatabaseInstanceType
                  - DatabaseName
                  - DatabaseUsername
                  - DatabasePassword
          ParameterLabels:
              DatabaseName:
                default: Database name
              DatabaseInstanceType:
                  default: Database Instance Type
              DatabasePassword:
                  default: Database Password
              DatabaseUsername:
                  default: Database Username
  
  Resources:
      ParameterGroup:
          Type: "AWS::RDS::DBParameterGroup"
          Properties: 
              Description: testglobalaurora DB parameter group 
              Family: aurora5.6
              Parameters:
                  max_connections: 300
  
      DatabaseCluster:
          Type: AWS::RDS::DBCluster
          Properties:
              Engine: aurora
              EngineMode: global
  
              MasterUsername:
                Ref: DatabaseUsername
              MasterUserPassword:
                Ref: DatabasePassword
              BackupRetentionPeriod: 35
              PreferredBackupWindow: 02:00-03:00
              PreferredMaintenanceWindow: mon:03:00-mon:04:00
              VpcSecurityGroupIds:
                - Ref: DatabaseSecurityGroup
  
      DatabaseInstance:
          Type: AWS::RDS::DBInstance
          Properties:
              Engine: aurora
              EngineVersion : 5.6.10a
              DBClusterIdentifier:
                  Ref: DatabaseCluster
              DBInstanceClass:
                  Ref: DatabaseInstanceType 
              DBParameterGroupName: !Ref ParameterGroup
              PubliclyAccessible: "true"
              DBInstanceIdentifier: !Ref DatabaseName
  
      DatabaseSecurityGroup:
          Type: AWS::EC2::SecurityGroup
          Properties: 
              VpcId: vpc-55378f2f
              GroupDescription: Access to database
              SecurityGroupIngress:
                  - CidrIp: 0.0.0.0/0
                    FromPort: 3306
                    ToPort: 3306
                    IpProtocol: tcp
              Tags: 
                  - Key: Name
                    Value: !Sub ${DatabaseName}-security-group
  
  Outputs:
      DatabaseEndpoint: 
          Description: The database endpoint
          Value: !GetAtt DatabaseCluster.Endpoint.Address
  
      DatabasePort:
          Description: The database port
          Value: !GetAtt DatabaseCluster.Endpoint.Port
  </code></pre>
  
  <p>My output
  "<br>
  global-database-1-cluster-1 Regional     Aurora MySQL   5.6.10a<br>
  global-database-1-instance-1    Writer       Aurora MySQL   5.6.10a
  "</p>
  
  <p>Actual ouput
  "<br>
  test-it                         Global  Aurora MySQL    5.6.10a 
  global-database-1-cluster-1 Primary Aurora MySQL    5.6.10a<br>
  global-database-1-instance-1    Writer  Aurora MySQL    5.6.10a
  "</p>