Add --migrate-vmas-to-vms option to support VMAS migration to VMS agent pool

[reneeli123]

---

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

Related command

az aks update --migrate-vmas-to-vms

General Guidelines

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

For new extensions:

• 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]

⚠️Azure CLI Extensions Breaking Change Test

⚠️aks-preview

rule	cmd_name	rule_message	suggest_message
⚠️ 1006 - ParaAdd	aks update	cmd aks update added parameter migrate_vmas_to_vms

[azure-client-tools-bot-prd]

Hi @reneeli123,
Since the current milestone time is less than 7 days, this pr will be reviewed in the next milestone.

[azure-client-tools-bot-prd]

Hi @reneeli123,
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 setup.py as well.

[yonzhan]

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

[github-actions]

The git hooks are available for azure-cli and azure-cli-extensions repos. They could help you run required checks before creating the PR.

Please sync the latest code with latest dev branch (for azure-cli) or main branch (for azure-cli-extensions).
After that please run the following commands to enable git hooks:

pip install azdev --upgrade
azdev setup -c <your azure-cli repo path> -r <your azure-cli-extensions repo path>

[github-actions]

Hi @reneeli123

Release Suggestions

Module: aks-preview

• Please log updates into to src/aks-preview/HISTORY.rst
• Update VERSION to 14.0.0b7 in src/aks-preview/setup.py

Notes

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