
This decorator is extremely old, virtual_interface_get_by_instance started using it in 0d9d2487e2ca921ab54b1ecbe359c32ce8fb0c48 (Folsom). virtual_interface_get_by_instance is the only thing still using it and doesn't need to. The only thing which calls that DB API is VirtualInterfaceList.get_by_instance_uuid and everything calling that handles an empty list (and InstanceNotFound is probably unexpected in anything using those anyway, i.e. they'd need to already get the instance to lookup the VIFs). The decorator is also not fast - it calls instance_get_by_uuid which builds up a query on the Instance model and also joins on the metadata and system_metadata tables which is totally unnecessary for an existence type check. Anyway, there seems to be no good reason for having that decorator anymore as nothing else uses it, for example block_device_mapping_get_all_by_instance. Change-Id: I7dcb47f916908319ae58db12e9ab3dd8dad9ff39 Closes-Bug: #1823794
Team and repository tags
OpenStack Nova
OpenStack Nova provides a cloud computing fabric controller, supporting a wide variety of compute technologies, including: libvirt (KVM, Xen, LXC and more), Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.
Use the following resources to learn more.
API
To learn how to use Nova's API, consult the documentation available online at:
For more information on OpenStack APIs, SDKs and CLIs in general, refer to:
Operators
To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:
In the unfortunate event that bugs are discovered, they should be reported to the appropriate bug tracker. If you obtained the software from a 3rd party operating system vendor, it is often wise to use their own bug tracker for reporting problems. In all other cases use the master OpenStack bug tracker, available at:
Developers
For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.
Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.
Further developer focused documentation is available at:
Other Information
During each Summit and Project Team Gathering, we agree on what the whole community wants to focus on for the upcoming release. The plans for nova can be found at: