Current Series Release Notes

5.3.0-2

New Features

• Added application credential support to the Cinder backend driver. The Cinder backend now supports authentication using application credentials in addition to password authentication. This enables Zero Downtime Password Rotation (ZDPR) support for Glance deployments using Cinder as the image backend.

  Two new configuration options have been added: cinder_store_application_credential_id and cinder_store_application_credential_secret. These options are available in both the [cinder] and [backend_defaults] configuration groups. When both application credential options are set, the driver will use application credential authentication instead of password authentication. If either option is not set, the driver falls back to password authentication for backward compatibility.

  This feature allows operators to rotate service user passwords without downtime, as application credentials can be created with overlapping validity periods.

5.3.0

Bug Fixes

• Cinder: Fixed locking mechanism to allow multiple workers to use the same image safely.

• S3: Fixed issue when uploading a zero byte image using multipart upload.