fix(acns): npe issue for acns transit encryption flag

[nddq]

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[yonzhan]

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[github-actions]

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[Copilot]

Pull Request Overview

This PR fixes a null-pointer exception when setting the ACNS transit encryption flag by instantiating the proper model, updates the extension version, and adds tests to cover the new behavior.

• Bumped extension version to 18.0.0b14
• Added end-to-end tests for create/update commands with --acns-transit-encryption-type and --acns-advanced-networkpolicies
• Changed direct property assignment to use AdvancedNetworkingSecurityTransitEncryption in the decorator to avoid NPE

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

File	Description
src/aks-preview/setup.py	Bumped version from 18.0.0b13 to 18.0.0b14
src/aks-preview/azext_aks_preview/tests/latest/test_aks_commands.py	Added tests for ACNS transit encryption and advanced network policies
src/aks-preview/azext_aks_preview/managed_cluster_decorator.py	Switched to instantiating AdvancedNetworkingSecurityTransitEncryption instead of direct property assignment
src/aks-preview/HISTORY.rst	Documented the NPE fix under version 18.0.0b14

[github-actions]

• For more info about extension versioning, please refer to Extension version schema

[yanzhudd]

/azp run

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Azure Pipelines successfully started running 2 pipeline(s).

[yanzhudd]

Hi @FumingZhang
could you please help to review this PR as well?

[FumingZhang]

lgtm

I’m still unable to validate the cases via live test because the test subscription lacks the required preview feature registration.

Does the feature support validation through the AKSHTTPCustomFeatures header on the server side? If so, please add the corresponding custom header in the test code.

[yanzhudd]

please fix the CI issues.

[nddq]

@yanzhudd should be fixed now

[nddq]

lgtm

I’m still unable to validate the cases via live test because the test subscription lacks the required preview feature registration.

Does the feature support validation through the AKSHTTPCustomFeatures header on the server side? If so, please add the corresponding custom header in the test code.

@FumingZhang i tried adding that option, can you try running it again?

[FumingZhang]

Requeued live test, test passed!

[FumingZhang]

/azp run

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Azure Pipelines successfully started running 2 pipeline(s).

[yanzhudd]

/azp run

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Azure Pipelines successfully started running 2 pipeline(s).

[azclibot]

[Release] Update index.json for extension [ aks-preview-18.0.0b15 ] : https://dev.azure.com/msazure/One/_build/results?buildId=127626885&view=results