version: List and delete blob versions

In AzureStor: Storage Management in 'Azure'

List and delete blob versions

Description

List and delete blob versions

Usage

list_blob_versions(container, blob)

delete_blob_version(container, blob, version, confirm = TRUE)

Arguments

container	A blob container.
blob	The path/name of a blob.
version	For delete_blob_version, the specific version to delete. This should be a datetime string, in the format yyyy-mm-ddTHH:MM:SS.SSSSSSSZ.
confirm	Whether to ask for confirmation on deleting a blob version.

Details

A version captures the state of a blob at a given point in time. Each version is identified with a version ID. When blob versioning is enabled for a storage account, Azure Storage automatically creates a new version with a unique ID when a blob is first created and each time that the blob is subsequently modified.

A version ID can identify the current version or a previous version. A blob can have only one current version at a time.

When you create a new blob, a single version exists, and that version is the current version. When you modify an existing blob, the current version becomes a previous version. A new version is created to capture the updated state, and that new version is the current version. When you delete a blob, the current version of the blob becomes a previous version, and there is no longer a current version. Any previous versions of the blob persist.

Versions are different to snapshots:

• A new snapshot has to be explicitly created via create_blob_snapshot. A new blob version is automatically created whenever the base blob is modified (and hence there is no create_blob_version function).

• Deleting the base blob will also delete all snapshots for that blob, while blob versions will be retained (but will typically be inaccessible).

• Snapshots are only available for storage accounts with hierarchical namespaces disabled, while versioning can be used with any storage account.

Value

For list_blob_versions, a vector of datetime strings which are the IDs of each version.

AzureStor documentation built on May 25, 2022, 9:11 a.m.