feat(neptune): add engine version 1.2.0.0 (aws#21908)

- add engine version 1.2.0.0
- introduce a new enum for parameter group family
- update parameter groups to support specifying parameter group family

closes aws#21877


----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [x] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [x] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

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

@@ -73,7 +73,7 @@ const cluster = new neptune.DatabaseCluster(this, 'Cluster', {
   iamAuthentication: true, // Optional - will be automatically set if you call grantConnect().
 });
 const role = new iam.Role(this, 'DBRole', { assumedBy: new iam.AccountPrincipal(this.account) });
-cluster.grantConnect(role); // Grant the role connection access to the DB.
+cluster.grantConnect(role); // Grant the role neptune-db:* access to the DB.
 ```
 
 ## Customizing parameters
@@ -104,6 +104,8 @@ const cluster = new neptune.DatabaseCluster(this, 'Database', {
 });
 ```
 
+Note: if you want to use Neptune engine `1.2.0.0` or later, you need to specify the corresponding `engineVersion` prop to `neptune.DatabaseCluster` and `family` prop of `ParameterGroupFamily.NEPTUNE_1_2` to `neptune.ClusterParameterGroup` and `neptune.ParameterGroup`.
+
 ## Adding replicas
 
 `DatabaseCluster` allows launching replicas along with the writer instance. This can be specified using the `instanceCount`

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

@@ -58,6 +58,10 @@ export class EngineVersion {
    * Neptune engine version 1.1.1.0
    */
   public static readonly V1_1_1_0 = new EngineVersion('1.1.1.0');
+  /**
+   * Neptune engine version 1.2.0.0
+   */
+  public static readonly V1_2_0_0 = new EngineVersion('1.2.0.0');
 
   /**
    * Constructor for specifying a custom engine version

packages/@aws-cdk/aws-neptune/lib/parameter-group.ts

@@ -2,6 +2,27 @@ import { IResource, Resource } from '@aws-cdk/core';
 import { Construct } from 'constructs';
 import { CfnDBClusterParameterGroup, CfnDBParameterGroup } from './neptune.generated';
 
+/**
+ * The DB parameter group family that a DB parameter group is compatible with
+ */
+export class ParameterGroupFamily {
+
+  /**
+   * Family used by Neptune engine versions before 1.2.0.0
+   */
+  public static readonly NEPTUNE_1 = new ParameterGroupFamily('neptune1');
+  /**
+   * Family used by Neptune engine versions 1.2.0.0 and later
+   */
+  public static readonly NEPTUNE_1_2 = new ParameterGroupFamily('neptune1.2');
+
+  /**
+   * Constructor for specifying a custom parameter group famil
+   * @param family the family of the parameter group Neptune
+   */
+  public constructor(public readonly family: string) {}
+}
+
 /**
  * Properties for a parameter group
  */
@@ -17,6 +38,13 @@ interface ParameterGroupPropsBase {
    * The parameters in this parameter group
    */
   readonly parameters: { [key: string]: string };
+
+  /**
+   * Parameter group family
+   *
+   * @default - NEPTUNE_1
+   */
+  readonly family?: ParameterGroupFamily;
 }
 
 /**
@@ -81,7 +109,7 @@ export class ClusterParameterGroup extends Resource implements IClusterParameter
     const resource = new CfnDBClusterParameterGroup(this, 'Resource', {
       name: props.clusterParameterGroupName,
       description: props.description || 'Cluster parameter group for neptune db cluster',
-      family: 'neptune1',
+      family: (props.family ?? ParameterGroupFamily.NEPTUNE_1).family,
       parameters: props.parameters,
     });
 
@@ -126,7 +154,7 @@ export class ParameterGroup extends Resource implements IParameterGroup {
     const resource = new CfnDBParameterGroup(this, 'Resource', {
       name: props.parameterGroupName,
       description: props.description || 'Instance parameter group for neptune db instances',
-      family: 'neptune1',
+      family: (props.family ?? ParameterGroupFamily.NEPTUNE_1).family,
       parameters: props.parameters,
     });
 

packages/@aws-cdk/aws-neptune/package.json

@@ -84,6 +84,7 @@
     "@aws-cdk/assertions": "0.0.0",
     "@aws-cdk/cdk-build-tools": "0.0.0",
     "@aws-cdk/integ-runner": "0.0.0",
+    "@aws-cdk/integ-tests": "0.0.0",
     "@aws-cdk/cfn2ts": "0.0.0",
     "@aws-cdk/pkglint": "0.0.0",
     "@types/jest": "^27.5.2"

packages/@aws-cdk/aws-neptune/test/cluster-ev12.integ.snapshot/ClusterTestDefaultTestDeployAssert6A1BBA9D.assets.json

@@ -0,0 +1,19 @@
+{
+  "version": "21.0.0",
+  "files": {
+    "21fbb51d7b23f6a6c262b46a9caee79d744a3ac019fd45422d988b96d44b2a22": {
+      "source": {
+        "path": "ClusterTestDefaultTestDeployAssert6A1BBA9D.template.json",
+        "packaging": "file"
+      },
+      "destinations": {
+        "current_account-current_region": {
+          "bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
+          "objectKey": "21fbb51d7b23f6a6c262b46a9caee79d744a3ac019fd45422d988b96d44b2a22.json",
+          "assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
+        }
+      }
+    }
+  },
+  "dockerImages": {}
+}

packages/@aws-cdk/aws-neptune/test/cluster-ev12.integ.snapshot/ClusterTestDefaultTestDeployAssert6A1BBA9D.template.json

@@ -0,0 +1,36 @@
+{
+ "Parameters": {
+  "BootstrapVersion": {
+   "Type": "AWS::SSM::Parameter::Value<String>",
+   "Default": "/cdk-bootstrap/hnb659fds/version",
+   "Description": "Version of the CDK Bootstrap resources in this environment, automatically retrieved from SSM Parameter Store. [cdk:skip]"
+  }
+ },
+ "Rules": {
+  "CheckBootstrapVersion": {
+   "Assertions": [
+    {
+     "Assert": {
+      "Fn::Not": [
+       {
+        "Fn::Contains": [
+         [
+          "1",
+          "2",
+          "3",
+          "4",
+          "5"
+         ],
+         {
+          "Ref": "BootstrapVersion"
+         }
+        ]
+       }
+      ]
+     },
+     "AssertDescription": "CDK bootstrap stack version 6 required. Please run 'cdk bootstrap' with a recent version of the CDK CLI."
+    }
+   ]
+  }
+ }
+}

packages/@aws-cdk/aws-neptune/test/cluster-ev12.integ.snapshot/aws-cdk-neptune-integ.assets.json

@@ -0,0 +1,19 @@
+{
+  "version": "21.0.0",
+  "files": {
+    "06bc77521a70e494cf9fb7d601f5111e19745b0ecde4b6ac42b311f1a19f8328": {
+      "source": {
+        "path": "aws-cdk-neptune-integ.template.json",
+        "packaging": "file"
+      },
+      "destinations": {
+        "current_account-current_region": {
+          "bucketName": "cdk-hnb659fds-assets-${AWS::AccountId}-${AWS::Region}",
+          "objectKey": "06bc77521a70e494cf9fb7d601f5111e19745b0ecde4b6ac42b311f1a19f8328.json",
+          "assumeRoleArn": "arn:${AWS::Partition}:iam::${AWS::AccountId}:role/cdk-hnb659fds-file-publishing-role-${AWS::AccountId}-${AWS::Region}"
+        }
+      }
+    }
+  },
+  "dockerImages": {}
+}