Default managed disks to true

[rak-phillip]

Summary

This default managed disks to true so that Dashboard matches the behavior requested in rancher/rancher#52464 and aligns with Azure’s guidance around unmanaged disk deprecation.

Fixes #16184

Occurred changes and/or fixed issues

• Default managed disks to true

Technical notes summary

This matches the behavior requested in rancher/rancher#52464 and aligns with Azure’s guidance around unmanaged disk deprecation¹.

Areas or cases that should be tested

Navigate to the Azure Cluster Provisioning form. Managed Disks defaults to true.

Areas which could experience regressions

There could be undisclosed scenarios where this still needs to default to false.

Screenshot/Video

NA

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes
• The PR has been reviewed in terms of Accessibility
• The PR has considered, and if applicable tested with, the three Global Roles Admin, Standard User and User Base

Footnotes

1. https://learn.microsoft.com/en-us/azure/virtual-machines/unmanaged-disks-deprecation ↩

[eva-vashkevich]

lgtm