RDS: support passing PreferredMaintenanceWindow to Cluster's writer and reader instances

[Konosh93]

Describe the bug

Related:

• RDS: support passing PreferredMaintenanceWindow to Cluster database instances #16954

When creating a DatabaseCluster it should be possible to specify PreferredMaintenanceWindow property for the database instances as per https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-rds-dbinstance.html#cfn-rds-dbinstance-preferredmaintenancewindow

Expected Behavior

Should be able specify the writer and readers PreferredMaintenanceWindow prop without using the deprecated instanceProps property.

Expected style:

new DatabaseCluster(stack, 'DatabaseCluster', {
  engine: DatabaseClusterEngine.AURORA,
  vpc: vpc,
  writer: ClusterInstance.provisioned('Instance1', {
    preferredMaintenanceWindow: 'Sat:22:15-Sat:22:45',
  }),
  preferredMaintenanceWindow: 'Sat:22:15-Sat:22:45',
});

Current Behavior

Can specify the PreferredMaintenanceWindow prop only through instanceProps:

declare const vpc: ec2.Vpc;
new rds.DatabaseCluster(this, 'DatabaseCluster', {
  engine: rds.DatabaseClusterEngine.AURORA,
  instanceProps: {
    vpc: vpc,
    preferredMaintenanceWindow: 'Sun:23:15-Sun:23:45',
  },
  preferredMaintenanceWindow: 'Sat:22:15-Sat:22:45',
});

Reproduction Steps

Trying adding preferredMaintenanceWindow to writer or readers props:

new DatabaseCluster(stack, 'DatabaseCluster', {
  engine: DatabaseClusterEngine.AURORA,
  vpc: vpc,
  writer: ClusterInstance.provisioned('Instance1', {
    preferredMaintenanceWindow: 'Sat:22:15-Sat:22:45', // Typescript error and wont be reflected in the synthesized templates
  }),
  preferredMaintenanceWindow: 'Sat:22:15-Sat:22:45',
});

Possible Solution

feat(rds): allow specifying PreferredMaintenanceWindow in RDS cluster instances using the new api

• feat(rds): specify PreferredMaintenanceWindow in reader or writer props #29686

Additional Information/Context

No response

CDK CLI Version

1.158.0

Framework Version

No response

Node.js Version

v18.17.1

OS

Linux

Language

TypeScript

Language Version

5.1.6

Other information

No response

[khushail]

Thanks @Konosh93 for reporting this and submitting a PR !

[Konosh93]

Fixed in:

• feat(rds): specify PreferredMaintenanceWindow in reader or writer props #29686

[github-actions]

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