(rds): add performanceInisghts configuration at cluster level

[aprat84]

Describe the feature

Add the performance insights configuration options at cluster level:

/**
 * Whether to enable Performance Insights for the DB instance.
 *
 * @default - false, unless `performanceInsightRetention` or `performanceInsightEncryptionKey` is set.
 */
readonly enablePerformanceInsights?: boolean;

/**
 * The amount of time, in days, to retain Performance Insights data.
 *
 * @default 7
 */
readonly performanceInsightRetention?: PerformanceInsightRetention;

/**
 * The AWS KMS key for encryption of Performance Insights data.
 *
 * @default - default master key
 */
readonly performanceInsightEncryptionKey?: kms.IKey;

Use Case

So we don't need to configure it to all instances. Also, because CloufFormation allows it.

Proposed Solution

Add the same 3 configuration options present in DatabaseInstance class, to the DatabaseCluster class: enablePerformanceInsights, performanceInsightRetention and performanceInsightEncryptionKey.

Other Information

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-dbcluster.html#cfn-rds-dbcluster-performanceinsightsenabled

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.256

Environment details (OS name and version, etc.)

macOS 14.6.1

[pahud]

Makes sense to me. Please help us prioritize with 👍 and we welcome PRs for this.

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