[AKS] Create default role assignments for automatic sku

[purpleran7]

---

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

Related command

Create three default role assignments for automatic sku clusters.

az aks create -g -n --sku automatic

General Guidelines

• [ X ] Have you run azdev style <YOUR_EXT> locally? (pip install azdev required)
• [ X ] Have you run python scripts/ci/test_index.py -q locally? (pip install wheel==0.30.0 required)
• [ X ] My extension version conforms to the Extension version schema

For new extensions:

• [ X ] My extension description/summary conforms to the Extension Summary Guidelines.

About Extension Publish

There is a pipeline to automatically build, upload and publish extension wheels.
Once your pull request is merged into main branch, a new pull request will be created to update src/index.json automatically.
You only need to update the version information in file setup.py and historical information in file HISTORY.rst in your PR but do not modify src/index.json.

[azure-client-tools-bot-prd[bot]]

️✔️Azure CLI Extensions Breaking Change Test

️✔️Non Breaking Changes

[yonzhan]

Thank you for your contribution! We will review the pull request and get back to you soon.

[github-actions[bot]]

:warning: Release Suggestions

Module: aks-preview

• Update version to 3.0.0b12 in setup.py

Notes

• Stable/preview tag is inherited from last release. If needed, please add stable/preview label to modify it.
• Major/minor/patch/pre increment of version number is calculated by pull request code changes automatically. If needed, please add major/minor/patch/pre label to adjust it.
• For more info about extension versioning, please refer to Extension version schema

[azclibot]

[Release] Update index.json for extension [ aks-preview ] : https://dev.azure.com/azclitools/release/_build/results?buildId=154900&view=results