RDS 不支持创建数据库实例

Question

我正在尝试使用 cloudformation 创建 postgres rds，但它给我这个错误

RDS does not support creating a DB instance with the following combination: DBInstanceClass=db.t2.micro, Engine=postgres, EngineVersion=13.3, LicenseModel=postgresql-license. For supported combinations of instance class and database engine version, see the documentation. (Service: AmazonRDS; Status Code: 400; Error Code: InvalidParameterCombination; Request ID: cdb3ewcd-17ef-404c-adc5-fcd04a590553; Proxy: null).

我试过更改实例类型和EngineVersion，但同样的错误。任何帮助将不胜感激。

 myDBEC2SecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: Frontend Access
      VpcId: !Ref Ec2Vpc
      SecurityGroupIngress:
      - IpProtocol: tcp
        FromPort: 5432
        ToPort: 5432
        CidrIp: 10.0.0.0/16
  myDBParamGroup:
    Type: AWS::RDS::DBParameterGroup
    Properties:
      Description: Database Parameter Group + pg_stat_statements
      Family: postgres13
      Parameters:
        shared_preload_libraries: pg_stat_statements
  myDBSubnetGroup:
    Type: AWS::RDS::DBSubnetGroup
    Properties:
      DBSubnetGroupDescription: DB Private Subnet
      SubnetIds:
      - !Ref Ec2SubnetPrivate1
      - !Ref Ec2SubnetPrivate2
  pgDB:
    Type: AWS::RDS::DBInstance
    Properties:
      DBName: !Ref 'DBName'
      AllocatedStorage: !Ref DBAllocatedStorage
      DBInstanceClass: !Ref 'DBInstanceClass'
      Engine: postgres
      EngineVersion: '13.3'
      MasterUsername: !Ref 'DBUser'
      MasterUserPassword: !Ref 'DBPassword'
      MultiAZ: !Ref 'MultiAZ'
      Tags:
      - Key: Name
        Value: Master Database
      DBSubnetGroupName: !Ref myDBSubnetGroup
      DBParameterGroupName: !Ref myDBParamGroup
      VPCSecurityGroups:
      - Fn::GetAtt:
        - myDBEC2SecurityGroup
        - GroupId

Answer 1

您必须找到支持您所在地区的引擎 postgres 和版本 13.3 的实例。为此，您应该使用 following command:

aws rds describe-orderable-db-instance-options --engine postgres --engine-version 13.3     --query "*[].{DBInstanceClass:DBInstanceClass,StorageType:StorageType}|[?StorageType=='gp2']|[].{DBInstanceClass:DBInstanceClass}"  --output text

给出（完全不支持 t2）：

db.m5.12xlarge
db.m5.16xlarge
db.m5.24xlarge
db.m5.2xlarge
db.m5.4xlarge
db.m5.8xlarge
db.m5.large
db.m5.xlarge
db.m6g.12xlarge
db.m6g.16xlarge
db.m6g.2xlarge
db.m6g.4xlarge
db.m6g.8xlarge
db.m6g.large
db.m6g.xlarge
db.r5.12xlarge
db.r5.16xlarge
db.r5.24xlarge
db.r5.2xlarge
db.r5.4xlarge
db.r5.8xlarge
db.r5b.12xlarge
db.r5b.16xlarge
db.r5b.24xlarge
db.r5b.2xlarge
db.r5b.4xlarge
db.r5b.8xlarge
db.r5b.large
db.r5b.xlarge
db.r5.large
db.r5.xlarge
db.r6g.12xlarge
db.r6g.16xlarge
db.r6g.2xlarge
db.r6g.4xlarge
db.r6g.8xlarge
db.r6g.large
db.r6g.xlarge
db.t3.2xlarge
db.t3.large
db.t3.medium
db.t3.micro
db.t3.small
db.t3.xlarge
db.t4g.2xlarge
db.t4g.large
db.t4g.medium
db.t4g.micro
db.t4g.small
db.t4g.xlarge
db.x2g.12xlarge
db.x2g.16xlarge
db.x2g.2xlarge
db.x2g.4xlarge
db.x2g.8xlarge
db.x2g.large
db.x2g.xlarge

RDS 不支持创建数据库实例

RDS does not support creating a DB instance

postgresql

amazon-web-services

amazon-rds

amazon-cloudformation