fix(eks): albController incompatibility with AuthenticationMode.API mode

[pahud]

Issue # (if applicable)

This PR improve the compatibility for albController with authenticationMode.API

related to #30888

We will address Fargate compatibility in #31267

Reason for this change

• When authenticationMode.API is specified, no aws-auth configMap should be created
• albController should not depend on cluster.awsAuth because that would create aws-auth configmap, which is not required in API mode.

Description of changes

Description of how you validated changes

unit tests

• validate the behavior in all conditions of the authenticationMode

integ test

• add a new integ test with API mode to ensure successful deployment

debugger

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "Jest",
      "program": "${workspaceFolder}/node_modules/jest/bin/jest.js",
      "cwd": "${workspaceFolder}/packages/aws-cdk-lib",
      "args": [
        "--verbose",
        "-i",
        "--no-cache",
        "test/alb-controller.test.ts",
      ],
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen",
      "skipFiles": [
        "<node_internals>/**"
      ],
      "outFiles": [
        "${workspaceFolder}/**/*.(m|c|)js",
        "!**/node_modules/**"
      ],
    }
  ]
}

Checklist

• My code adheres to the CONTRIBUTING GUIDE and DESIGN GUIDELINES

---

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

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[xazhao]

LGTM

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Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

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Thank you for contributing! Your pull request will be updated from main and then merged automatically (do not update manually, and be sure to allow changes to be pushed to your fork).

[aws-cdk-automation]

AWS CodeBuild CI Report

• CodeBuild project: AutoBuildv2Project1C6BFA3F-wQm2hXv2jqQv
• Commit ID: 0ed9f0b
• Result: SUCCEEDED
• Build Logs (available for 30 days)

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