azurerm_mysql_flexible_server - Validation rule fix (regex) sku_name property

[cmelo05]

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Description

With the current Regular Expression in the code, it is possible create a azurerm_mysql_flexible_server with sku_name equals B_Standard_D64ds_v4, which is not a valid name, as Standard_D64ds_v4 is a General Purpose (GP) machine. Without this validation, the API throws an Internal Server Error when trying to create the resource.

Following the official documentation for Service tiers, size, and server types, I noticed that the Burstable should follow B_Standard_B* pattern, General Purpose should follow GP_Standard_D* and Memory Optimized should follow the MO_Standard_E* pattern. I limited the options in the regex to avoid using a sku_name that is not available in Azure documentation.

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Change Log

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• azurerm_mysql_flexible_server - fix sku_name regex validation [MySQL Flexible SKU name validation is improper #23427]

This is a (please select all that apply):

• Bug Fix
• New Feature (ie adding a service, resource, or data source)
• Enhancement
• Breaking Change

Related Issue(s)

Fixes #23427

Note

If this PR changes meaningfully during the course of review please update the title and description as required.

[stephybun]

Thanks @cmelo05 LGTM 👍

[github-actions]

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