[RDBMS] az postgres flexible-server create/update/restore: Premium SSD V2 is no longer supported with Burstable compute tier
#31948
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Pull Request Overview
This PR blocks the use of Premium SSD V2 storage type with Burstable compute tier for PostgreSQL flexible servers, as this combination is no longer supported.
- Added validation to prevent Premium SSD V2 usage with Burstable tier in create, update, and restore operations
- Enhanced the existing storage type validator with tier validation
- Added a dedicated restore validator for handling the specific case of restoring with Premium SSD V2
Reviewed Changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| validators.py | Added tier parameter to storage validator and new restore validator to block Burstable + Premium SSD V2 |
| flexible_server_custom_postgres.py | Integrated the restore validator into the restore operation flow |
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| def pg_restore_validator(compute_tier, **args): | ||
| is_ssdv2_enabled = args.get('storage_type', None) == "PremiumV2_LRS" | ||
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| if is_ssdv2_enabled and compute_tier.lower() == 'burstable': |
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The function does not handle the case where compute_tier might be None or empty. This could cause an AttributeError when calling .lower() on a None value.
Suggested change
| if is_ssdv2_enabled and compute_tier.lower() == 'burstable': | |
| if is_ssdv2_enabled and compute_tier and compute_tier.lower() == 'burstable': |
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I think this is a good suggestion
mattboentoro
approved these changes
Aug 15, 2025
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/azp run |
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Azure Pipelines successfully started running 3 pipeline(s). |
evelyn-ys
approved these changes
Aug 15, 2025
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Related command
az postgres flexible-server create/update/restoreDescription
Premium SSD V2 will now be blocked with Burstable compute tier. This is being reflected in API response not showing as supported.
Testing Guide
Manually
History Notes
[RDBMS]
az postgres flexible-server create/update/restore: Premium SSD V2 is no longer supported with Burstable compute tier