feat(neptune): add copyTagsToSnapshot property to the DatabaseCluster Construct

packages/@aws-cdk/aws-neptune-alpha/README.md

@@ -31,6 +31,7 @@ To set up a Neptune database, define a `DatabaseCluster`. You must always launch
 const cluster = new neptune.DatabaseCluster(this, 'Database', {
   vpc,
   instanceType: neptune.InstanceType.R5_LARGE,
+  copyTagsToSnapshot: true  // whether to save the cluster tags when creating the snapshot.
 });
 ```
 

packages/@aws-cdk/aws-neptune-alpha/lib/cluster.ts

@@ -85,7 +85,7 @@ export class EngineVersion {
    * Constructor for specifying a custom engine version
    * @param version the engine version of Neptune
    */
-  public constructor(public readonly version: string) {}
+  public constructor(public readonly version: string) { }
 }
 
 /**
@@ -105,7 +105,7 @@ export class LogType {
    * Constructor for specifying a custom log type
    * @param value the log type
    */
-  public constructor(public readonly value: string) {}
+  public constructor(public readonly value: string) { }
 }
 
 export interface ServerlessScalingConfiguration {
@@ -321,6 +321,13 @@ export interface DatabaseClusterProps {
    * @default - required if instanceType is db.serverless
    */
   readonly serverlessScalingConfiguration?: ServerlessScalingConfiguration;
+
+  /**
+   * Whether to copy tags to the snapshot when a snapshot is created.
+   *
+   * @default - false
+   */
+  readonly copyTagsToSnapshot?: boolean;
 }
 
 /**
@@ -616,6 +623,9 @@ export class DatabaseCluster extends DatabaseClusterBase implements IDatabaseClu
       enableCloudwatchLogsExports: props.cloudwatchLogsExports?.map(logType => logType.value),
       storageEncrypted,
       serverlessScalingConfiguration: props.serverlessScalingConfiguration,
+      // Tags
+      copyTagsToSnapshot: props.copyTagsToSnapshot,
+
     });
 
     cluster.applyRemovalPolicy(props.removalPolicy, {

packages/@aws-cdk/aws-neptune-alpha/test/cluster.test.ts

@@ -879,6 +879,40 @@ describe('DatabaseCluster', () => {
       RetentionInDays: 30,
     });
   });
+
+  test('cluster with copyTagsToSnapshot default', () => {
+    // GIVEN
+    const stack = testStack();
+    const vpc = new ec2.Vpc(stack, 'VPC');
+
+    // WHEN
+    new DatabaseCluster(stack, 'Database', {
+      vpc,
+      instanceType: InstanceType.R5_LARGE,
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::Neptune::DBCluster', {
+      CopyTagsToSnapshot: Match.absent(),
+    });
+  });
+
+  test.each([false, true])('cluster with copyTagsToSnapshot set', (value) => {
+    const stack = testStack();
+    const vpc = new ec2.Vpc(stack, 'VPC');
+
+    // WHEN
+    new DatabaseCluster(stack, 'Database', {
+      vpc,
+      instanceType: InstanceType.R5_LARGE,
+      copyTagsToSnapshot: value,
+    });
+
+    // THEN
+    Template.fromStack(stack).hasResourceProperties('AWS::Neptune::DBCluster', {
+      CopyTagsToSnapshot: value,
+    });
+  });
 });
 
 function testStack() {