Increase storage driver visibility for Azure
Description
Currently, storage drivers have very limited logging in place. It would be helpful to have a level of logging that would enable us to log requests and responses from the underlying storage system (where applicable), for example.
This would have allowed us to arrive at the cause of this issue: #341 (closed) quite a bit sooner.
There has been some effort here: !8 (merged), but not a unified approach.
Proposal
Add logging for container registries using Azure for object storage so that we can identify issues and resolve them faster and more efficiently.
Edited by Tim Rizzi