错误：DBClusterInstanceClass不支持DB engine aurora-mysql | Cloudformation。

Question

【以下的问题经过翻译处理】 你好团队，

我创建了一个用于aurora-mysql8.0的CloudFormation模板。但是在运行模板时，我遇到了错误：**DBClusterInstanceClass不支持DB引擎aurora-mysql**。我不确定是否需要从模板中删除此选项，因为那样我将无法设置DBClusterInstance类型。

模板如下：

‘’‘
Parameters:
  DatabaseName:
    Default: MyDatabase
    Description: The database name
    Type: String
    MinLength: '1'
    MaxLength: '64'
    AllowedPattern: '[a-zA-Z][a-zA-Z0-9]*'
    ConstraintDescription: must begin with a letter and contain only alphanumeric
      characters.
  DBUser:
    NoEcho: 'false'
    Description: The database admin account username
    Type: String
    MinLength: '1'
    MaxLength: '16'
  DBPassword:
    NoEcho: 'true'
    Description: The database admin account password
    Type: String
    MinLength: '8'
    MaxLength: '41'
  DBClusterInstanceClass: 
    Description: Instance class for RDS
    Type: String
    MinLength: '1'
    MaxLength: '16'
  AllocatedStorage:
    Description: Required storage
    Type: Number
  Engine:
    Description: DB Engine
    Type: String
    Default: aurora-mysql
    MinLength: '1'
    MaxLength: '16'
  EngineVersion:
    Description: RDS version
    Type: String
    Default: 8.0.mysql_aurora.3.02.1
  BackupRetentionPeriod:
    Description: RDS retention period
    Type: String
  DBClusterIdentifier:
    Description: DB identifier
    Type: String
  BackupRetentionPeriod:
    Description: RDS retention period
    Type: String
  EnablePerformanceInsights:
    Description: Enable or Disable performance insight
    Type: String
  PreferredBackupWindow:
    Description: Backup window
    Type: String
  PreferredMaintenanceWindow:
    Description: Maintainence window
    Type: String
  VpcSecurityGroupIds:
    Description: SG for RDS
    Type: String
  SubnetID1:
    Description: Subnets for the RDS in subnet group
    Type: String
  SubnetID2:
    Description: Subnets for the RDS in subnet group
    Type: String
  MonitoringRoleArn:
    Description: RDS Monitoring Role
    Type: String
Resources:
  MyDB:
    Type: AWS::RDS::DBCluster
    Properties:
      DatabaseName: !Ref 'DatabaseName'
      AllocatedStorage: !Ref 'AllocatedStorage'
      DBClusterInstanceClass: !Ref 'DBClusterInstanceClass'
      Engine: !Ref 'Engine'
      EngineVersion: !Ref 'EngineVersion'
      BackupRetentionPeriod: !Ref 'BackupRetentionPeriod'
      DBClusterIdentifier: !Ref 'DBClusterIdentifier'
      DBSubnetGroupName: !Ref 'MYSubnetGroup'
      EnableCloudwatchLogsExports: 
         - audit
         - error
      PerformanceInsightsEnabled: !Ref 'EnablePerformanceInsights'
      PreferredBackupWindow: !Ref 'PreferredBackupWindow'
      PreferredMaintenanceWindow: !Ref 'PreferredMaintenanceWindow'
      PubliclyAccessible: False
      StorageEncrypted: True
      StorageType: gp2
      MonitoringInterval: 60
      MonitoringRoleArn: !Ref 'MonitoringRoleArn'
      VpcSecurityGroupIds: 
        - !Ref 'VpcSecurityGroupIds'
      MasterUsername: !Ref 'DBUser'
      MasterUserPassword: !Ref 'DBPassword'
      DBClusterParameterGroupName: !Ref 'ClusterParameterGroup'
      DeletionProtection: True
      AutoMinorVersionUpgrade: True
      CopyTagsToSnapshot: True
  ClusterParameterGroup:
    Type: 'AWS::RDS::DBClusterParameterGroup'
    Properties:
      Description: Cluster Parameter group for RDS
      Family: aurora-mysql8.0
      Parameters:
        require_secure_transport: 'ON'
        server_audit_logging: '1'
  MYSubnetGroup:
    Type: AWS::RDS::DBSubnetGroup
    Properties: 
      DBSubnetGroupDescription: subnet group for the rds
      SubnetIds: 
        - !Ref 'SubnetID1'
        - !Ref 'SubnetID2'
’‘’

谢谢。

rePost Polyglot · Answer

【以下的回答经过翻译处理】 对于DB引擎`aurora-mysql`，您应该使用CloudFormation资源类型`AWS::RDS::DBCluster`和`AWS::RDS::DBInstance`的组合。然后，您可以通过`AWS::RDS::DBInstance`的`DBInstanceClass`属性来指定实例类型。

AWS CloudFormation文档中有一些关于创建Aurora DB的示例：。它使用的是`aurora-postgresql`，但您可以在创建您的`aurora-mysql`时将其作为参考。

错误：DBClusterInstanceClass不支持DB engine aurora-mysql | Cloudformation。

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