To automatically delete blobs in Azure Blob Storage, you can configure a lifecycle management policy.
This policy allows you to:
* Transition blobs between hot, cool, and archive tiers.
* Delete blobs automatically after a specified number of days.
Other options:
* Change feed # Tracks all changes to blobs, but does not delete them.
* Soft delete # Protects blobs from accidental deletion by allowing recovery, not automated deletion.
* Archive storage # Storage tier for rarely accessed data, not a deletion mechanism.
The answer: a lifecycle management policy
Reference: Azure Blob Storage lifecycle management