Add support for VPC Endpoint Service Region (#278)

Issue #, if available: [2513](aws-controllers-k8s/community#2513)

Description of changes:
- Remove ServiceRegion from ignored fields
- Mark ServiceRegion as immutable

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

Author: knottnt

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2025-08-15T00:07:14Z"
-  build_hash: b6df33f8c7f55b234555c0b578b8de43c74771a8
-  go_version: go1.24.6
-  version: v0.51.0
-api_directory_checksum: d162a6e9df2d4861d6c01d42047402b51f341293
+  build_date: "2025-08-28T17:59:00Z"
+  build_hash: 1d9076d0211773ff8ab8682b28b912c7ece10676
+  go_version: go1.25.0
+  version: v0.51.0-2-g1d9076d
+api_directory_checksum: b32f97274be98ca3f4cf5cbf559258210c872946
 api_version: v1alpha1
 aws_sdk_go_version: v1.32.6
 generator_config_info:
-  file_checksum: e3c9cd11651288747aece625d6883dfefa718864
+  file_checksum: d5e0ce1661bd55bd3c0a8c4316de6885c8039ea0
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/generator.yaml

@@ -62,14 +62,12 @@ ignore:
     - CreateVpcEndpointInput.DnsOptions.PrivateDnsOnlyForInboundResolverEndpoint
     - CreateVpcEndpointInput.ResourceConfigurationArn
     - CreateVpcEndpointInput.ServiceNetworkArn
-    - CreateVpcEndpointInput.ServiceRegion
     - CreateVpcEndpointInput.SubnetConfigurations
     - CreateVpcEndpointOutput.VpcEndpoint.FailureReason
     - CreateVpcEndpointOutput.VpcEndpoint.Ipv4Prefixes
     - CreateVpcEndpointOutput.VpcEndpoint.Ipv6Prefixes
     - CreateVpcEndpointOutput.VpcEndpoint.ResourceConfigurationArn
     - CreateVpcEndpointOutput.VpcEndpoint.ServiceNetworkArn
-    - CreateVpcEndpointOutput.VpcEndpoint.ServiceRegion
     - CreateVpcEndpointServiceConfigurationInput.ClientToken
     - CreateVpcEndpointServiceConfigurationInput.DryRun
     - CreateVpcEndpointServiceConfigurationInput.TagSpecifications
@@ -1022,6 +1020,9 @@ resources:
         print:
           path: Status.vpcEndpointID
           name: ID
+      ServiceRegion:
+        # ServiceRegion is not supported in ModifyVpcEndpoint's input.
+        is_immutable: true
     exceptions:
       terminal_codes:
         - InvalidVpcId.Malformed

apis/v1alpha1/types.go

@@ -135,6 +135,13 @@ spec:
               serviceName:
                 description: The name of the endpoint service.
                 type: string
+              serviceRegion:
+                description: The Region where the service is hosted. The default is
+                  the current Region.
+                type: string
+                x-kubernetes-validations:
+                - message: Value is immutable once set
+                  rule: self == oldSelf
               subnetIDs:
                 description: |-
                   (Interface and Gateway Load Balancer endpoints) The IDs of the subnets in

apis/v1alpha1/vpc_endpoint.go

@@ -62,14 +62,12 @@ ignore:
     - CreateVpcEndpointInput.DnsOptions.PrivateDnsOnlyForInboundResolverEndpoint
     - CreateVpcEndpointInput.ResourceConfigurationArn
     - CreateVpcEndpointInput.ServiceNetworkArn
-    - CreateVpcEndpointInput.ServiceRegion
     - CreateVpcEndpointInput.SubnetConfigurations
     - CreateVpcEndpointOutput.VpcEndpoint.FailureReason
     - CreateVpcEndpointOutput.VpcEndpoint.Ipv4Prefixes
     - CreateVpcEndpointOutput.VpcEndpoint.Ipv6Prefixes
     - CreateVpcEndpointOutput.VpcEndpoint.ResourceConfigurationArn
     - CreateVpcEndpointOutput.VpcEndpoint.ServiceNetworkArn
-    - CreateVpcEndpointOutput.VpcEndpoint.ServiceRegion
     - CreateVpcEndpointServiceConfigurationInput.ClientToken
     - CreateVpcEndpointServiceConfigurationInput.DryRun
     - CreateVpcEndpointServiceConfigurationInput.TagSpecifications
@@ -1022,6 +1020,9 @@ resources:
         print:
           path: Status.vpcEndpointID
           name: ID
+      ServiceRegion:
+        # ServiceRegion is not supported in ModifyVpcEndpoint's input.
+        is_immutable: true
     exceptions:
       terminal_codes:
         - InvalidVpcId.Malformed

apis/v1alpha1/zz_generated.deepcopy.go

@@ -135,6 +135,13 @@ spec:
               serviceName:
                 description: The name of the endpoint service.
                 type: string
+              serviceRegion:
+                description: The Region where the service is hosted. The default is
+                  the current Region.
+                type: string
+                x-kubernetes-validations:
+                - message: Value is immutable once set
+                  rule: self == oldSelf
               subnetIDs:
                 description: |-
                   (Interface and Gateway Load Balancer endpoints) The IDs of the subnets in