80191e6d82
If a compute node is backed by ceph, and the image is not clone-able in that same ceph, nova will try to download the image from glance and upload it to ceph itself. This is nice in that it "just works", but it also means we store that image in ceph in an extremely inefficient way. In a glance multi-store case with multiple ceph clusters, the user is currently required to make sure that the image they are going to use is stored in a backend local to the compute node they land on, and if they do not (or can not), then nova will do this non-COW inefficient copy of the image, which is likely not what the operator expects. Per the discussion at the Denver PTG, this adds a workaround flag which allows the operators to direct nova to *not* do this behavior and instead refuse to boot the instance entirely. Related-Bug: #1858877 Change-Id: I069b6b1d28eaf1eee5c7fb8d0fdef9c0c229a1bf
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: