fix(elasticsearch): 'r6gd' not marked as supported type for instance …

…storage (#14894)

According to https://aws.amazon.com/elasticsearch-service/pricing/ it's now supported .

Fixes #14773


----

*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-elasticsearch/lib/domain.ts

@@ -1454,8 +1454,8 @@ export class Domain extends DomainBase implements IDomain, ec2.IConnectable {
 
     // Validate against instance type restrictions, per
     // https://docs.aws.amazon.com/elasticsearch-service/latest/developerguide/aes-supported-instance-types.html
-    if (isInstanceType('i3') && ebsEnabled) {
-      throw new Error('I3 instance types do not support EBS storage volumes.');
+    if (isSomeInstanceType('i3', 'r6gd') && ebsEnabled) {
+      throw new Error('I3 and R6GD instance types do not support EBS storage volumes.');
     }
 
     if (isSomeInstanceType('m3', 'r3', 't2') && encryptionAtRestEnabled) {
@@ -1470,10 +1470,10 @@ export class Domain extends DomainBase implements IDomain, ec2.IConnectable {
       throw new Error('T2 and T3 instance types do not support UltraWarm storage.');
     }
 
-    // Only R3 and I3 support instance storage, per
+    // Only R3, I3 and r6gd support instance storage, per
     // https://aws.amazon.com/elasticsearch-service/pricing/
-    if (!ebsEnabled && !isEveryInstanceType('r3', 'i3')) {
-      throw new Error('EBS volumes are required when using instance types other than r3 or i3.');
+    if (!ebsEnabled && !isEveryInstanceType('r3', 'i3', 'r6gd')) {
+      throw new Error('EBS volumes are required when using instance types other than r3, i3 or r6gd.');
     }
 
     // Fine-grained access control requires node-to-node encryption, encryption at rest,

packages/@aws-cdk/aws-elasticsearch/test/domain.test.ts

@@ -1368,7 +1368,7 @@ describe('custom error responses', () => {
         volumeSize: 100,
         volumeType: EbsDeviceVolumeType.GENERAL_PURPOSE_SSD,
       },
-    })).toThrow(/I3 instance types do not support EBS storage volumes/);
+    })).toThrow(/I3 and R6GD instance types do not support EBS storage volumes/);
   });
 
   test('error when m3, r3, or t2 instance types are specified with encryption at rest enabled', () => {
@@ -1411,7 +1411,7 @@ describe('custom error responses', () => {
     })).toThrow(/t2.micro.elasticsearch instance type supports only Elasticsearch 1.5 and 2.3/);
   });
 
-  test('error when any instance type other than R3 and I3 are specified without EBS enabled', () => {
+  test('error when any instance type other than R3, I3 and R6GD are specified without EBS enabled', () => {
     expect(() => new Domain(stack, 'Domain1', {
       version: ElasticsearchVersion.V7_4,
       ebs: {
@@ -1420,7 +1420,7 @@ describe('custom error responses', () => {
       capacity: {
         masterNodeInstanceType: 'm5.large.elasticsearch',
       },
-    })).toThrow(/EBS volumes are required when using instance types other than r3 or i3/);
+    })).toThrow(/EBS volumes are required when using instance types other than r3, i3 or r6gd/);
   });
 
   test('error when availabilityZoneCount is not 2 or 3', () => {