{AKS} Stabilize remaining aks-preview live tests

[FumingZhang]

🤖 PR Validation — ️✔️ All clear

Breaking Changes
️✔️ None

This checklist is used to make sure that common guidelines for a pull request are followed.

Related command

az aks * (aks-preview live tests only)

What / Why

Fixes CLI-side test and scenario issues identified in the post-merge AKS runner logs without changing extension product code or AKS RP:

• Enable the OIDC issuer and workload identity required by the ALB update scenario.
• Apply precise feature and resolved-location skips instead of broadly disabling scenarios, including case-insensitive feature-name matching for free-form service errors.
• Correct virtual-node, upgrades, and full-caching assertions for current service responses.
• Sequence network-isolated migration operations in the required order.
• Keep the confidential-compute scenario in a capacity-verified region.
• Wait for monitoring, KMS rotation, and extension operations to become service-visible before dependent assertions.
• Split the approximately one-hour HTTP proxy scenario into independent create, update, and disable/re-enable tests, and remove its obsolete monolithic recording.

RP-only issues remain intentionally visible and are not masked by this PR.

Validation

• pytest src/aks-preview/azext_aks_preview/tests/latest/test_custom_preparers.py -q - 7 passed.
• pytest --collect-only src/aks-preview/azext_aks_preview/tests/latest/test_aks_commands.py -q - 388 tests collected.
• Direct mixed-case feature-error check - precise skip verified.
• python -m py_compile for all changed Python files - passed.
• git diff --check upstream/main...HEAD - passed.

Scope / Index / History

• Every changed path is under src/aks-preview/azext_aks_preview/tests/latest.
• No extension product code, version, HISTORY.rst, or src/index.json change is needed for this test-only PR.

General Guidelines

• Have you run azdev style <YOUR_EXT> locally? (pip install azdev required) - azdev is unavailable locally; the PR's style workflow provides this check.
• Have you run python scripts/ci/test_index.py -q locally? (pip install azdev required) - N/A, src/index.json is unchanged.
• My extension version conforms to the Extension version schema (version unchanged).

For new extensions:

• N/A - not a new extension.

[azure-client-tools-bot-prd]

Hi FumingZhang,
Please write the description of changes which can be perceived by customers into HISTORY.rst.
If you want to release a new extension version, please update the version in pyproject.toml (or setup.py, if the extension has not migrated yet) as well.

[Aditya Pujara (a0x1ab)]

/azp run

[azure-pipelines]

Azure Pipelines:
Successfully started running 2 pipeline(s).

[Yong Zhang (yonzhan)]

AKS

[Copilot]

🟡 Changes recommended

The new _cmd_or_skip_if_feature_unavailable skip detection is case-sensitive and can fail to trigger in practice, causing avoidable live-test failures.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Stabilizes aks-preview live tests by making them more resilient to service-side gating/propagation behavior and region constraints, without changing extension product code.

Changes:

• Add a targeted helper (skip_test_if_location_unsupported) and unit tests to precisely skip region-gated scenarios when forced RG locations are unsupported.
• Improve live-test robustness by adding targeted waits and adjusting assertions to match current/consistent RP response shapes.
• Refactor several scenarios (notably the HTTP proxy scenario) to reduce flakiness/timeouts and apply more precise skip behavior for subscription-gated preview features.

File summaries

File	Description
src/aks-preview/azext_aks_preview/tests/latest/test_custom_preparers.py	Adds unit coverage for the new precise location-skip helper.
src/aks-preview/azext_aks_preview/tests/latest/test_aks_commands.py	Updates/reshapes multiple live scenarios with precise skips, waits, and assertion fixes to reduce flakes.
src/aks-preview/azext_aks_preview/tests/latest/custom_preparers.py	Introduces skip_test_if_location_unsupported to avoid broad decorators and keep skips scoped.

Review details

• Files reviewed: 3/4 changed files
• Comments generated: 2
• Review effort level: Lite

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