ADAL to MSAL migration

[jiasli]

As ADAL has been deprecated:

This library, ADAL for Python, will no longer receive new feature improvements. Instead, use the new library
MSAL for Python.

Azure CLI needs to be migrated from ADAL to MSAL.

References

• Microsoft Authentication Library (MSAL) for Python
• Microsoft Azure Active Directory Authentication Library (ADAL) for Python
• Migrate applications to the Microsoft Authentication Library (MSAL)
• Microsoft Graph API Support #12946

[yonzhan]

The rough ETA for GA is the end of October.

[ploegert]

Yong Zhang (@yonzhan) - is this still targeted for end of oct 2021 completion? Thanks!

[yonzhan]

Justin Ploegert (@ploegert) yes, it is still on track

[yonzhan]

Overall 30% completed：We implemented cross-tenant support for MSAL integration GA and the next step is Unit Test and E2E Test based on latest MSAL 1.14.0 AzureAD/microsoft-authentication-library-for-python#400

[yonzhan]

Overall 60% completed: We finished testing based on latest MSAL 1.14.0 and we are working on Unit Test and E2E Test.

[yonzhan]

Overall 75% completed: The unit tests for Azure CLI’s MSAL integration have been completed. All tests in CI show pass. Meanwhile, we need all team members to perform E2E tests on MSAL-based CLI. We will also invite other teams, like GitHub Action team, which are interested to test it too. Therefore, we plan to release a Beta version in the middle of October before the final GA release.