API Gateway REST API private integration with ALB

[Klopklopi]

Description

This merge request introduce the implementation of private integration with ALB for REST API (Apigateway service). This is done by changing the aws_api_gateway_integration and make it support the VPC Link V2 with ALB Integration.

Relations

Closes ##45230

References

Architecture
Documentation

Output from Acceptance Testing

make testacc PKG=apigateway T=TestAccAPIGatewayIntegration_vpcLinkV2
make: Running acceptance tests on branch: 🌿 vpc_link_v2_alb_support 🌿...
TF_ACC=1 go1.24.10 test ./internal/service/apigateway/... -v -count 1 -parallel 20 -run='TestAccAPIGatewayIntegration_vpcLinkV2'  -timeout 360m -vet=off
2025/11/28 12:55:28 Creating Terraform AWS Provider (SDKv2-style)...
2025/11/28 12:55:28 Initializing Terraform AWS Provider (SDKv2-style)...
=== RUN   TestAccAPIGatewayIntegration_vpcLinkV2WithALB
=== PAUSE TestAccAPIGatewayIntegration_vpcLinkV2WithALB
=== RUN   TestAccAPIGatewayIntegration_vpcLinkV2Update
=== PAUSE TestAccAPIGatewayIntegration_vpcLinkV2Update
=== CONT  TestAccAPIGatewayIntegration_vpcLinkV2WithALB
=== CONT  TestAccAPIGatewayIntegration_vpcLinkV2Update
--- PASS: TestAccAPIGatewayIntegration_vpcLinkV2WithALB (237.61s)
--- PASS: TestAccAPIGatewayIntegration_vpcLinkV2Update (440.23s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/apigateway 446.868s

[github-actions]

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[github-actions]

✅ Thank you for correcting the previously detected issues! The maintainers appreciate your efforts to make the review process as smooth as possible.

[ziaulrehman40]

I need this, thanks for the implementation.

[sunilkamat85]

Thank you for this implementation. This one is quite critical for my project. Generally how long does it take to get merged and released?