tree 06e5b6e69da45eae2191871ac33b8f87144ead81
parent ca170bb0cb41e113e925c340fd8bdd038b0f17ab
author Willy Tu <wltu@google.com> 1699340725 -0800
committer Willy Tu <wltu@google.com> 1699401176 +0000

Add alias and option to support migration

The main goal of the change is to allow us to change the name of the
blobId while making sure the existing data is still valid during the
migration. Added an alias option which allow us to have two possible
valid blobId and will use the `baseBlobId` to commit the data even if
the current data match the alish ID. This allow us to change the blobId
of the binary store without loosing the data.

Also added an option to revert back to the alias blobId with the
`blobtool` to support backward compatibility when we need to downgrade
to a version without alias support. Created the base service that gets
trigger to start the blob id revert.

Tested:

Tested backward compatibility and working fine. The blob data are not
lost between versions.

Change-Id: I75bcbce3aff20c6ee8a491bef36fac260595d6f7
Signed-off-by: Willy Tu <wltu@google.com>