When you update to Oracle OpenStack for Oracle Linux Release 2.1, you upgrade the Docker Engine to version 1.10. You might experience the following issues when you upgrade the Docker Engine:
In Release 2.1, the OpenStack Docker images are built using Docker version 1.10. These images cannot be deployed to a host that runs Docker Engine version 1.9 or earlier.
Bug: 22963639
After you upgrade a host to Docker Engine version 1.10, it can take a while for the Docker service to restart. This is because Docker performs a migration on existing containers and images to convert them to the new content-addressable storage used in version 1.10. If you downgrade the Docker Engine to version 1.9, the migrated Docker images and containers cannot be used.
Bug: 22931204
When you import images to the Docker registry using the
import_to_registry.shscript and the host runs Docker Engine version 1.10, you see a lot of warnings that the-fflag is deprecated. You can safely ignore these warnings.Bug: 22915568