# ServerlessClusterAttributes

Properties that describe an existing cluster instance.

- Source: [`aws-rds/lib/serverless-cluster.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-rds/lib/serverless-cluster.ts#L192)

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_ec2 as ec2 } from 'aws-cdk-lib';
import { aws_rds as rds } from 'aws-cdk-lib';
import { aws_secretsmanager as secretsmanager } from 'aws-cdk-lib';

declare const secret: secretsmanager.Secret;
declare const securityGroup: ec2.SecurityGroup;
const serverlessClusterAttributes: rds.ServerlessClusterAttributes = {
  clusterIdentifier: 'clusterIdentifier',

  // the properties below are optional
  clusterEndpointAddress: 'clusterEndpointAddress',
  port: 123,
  readerEndpointAddress: 'readerEndpointAddress',
  secret: secret,
  securityGroups: [securityGroup],
};
```

## Properties

- `clusterEndpointAddress`: string — Cluster endpoint address.

  **Default:** no endpoint address

- `clusterIdentifier`: string (required) — Identifier for the cluster.

- `port`: number = none — The database port.

- `readerEndpointAddress`: string — Reader endpoint address.

  **Default:** no reader address

- `secret`: [ISecret](/cdk/api/v2/docs/aws-cdk-lib.aws_secretsmanager.ISecret.html) — The secret attached to the database cluster.

  **Default:** no secret

- `securityGroups`: [ISecurityGroup](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.ISecurityGroup.html)[] — The security groups of the database cluster.

  **Default:** no security groups