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OpenStack Compute (Nova)
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Lee Yarwood 0cfe9c81e3 libvirt: Provide the backing file format when creating qcow2 disks 
Libvirt v6.0.0 [1] will now fail to launch a domain when using qcow2
disks where the backing file format is not recorded in the qcow2
metadata.

There are some discussions upstream around relaxing this slightly [2]
but for now any attempt to launch an instance using qcow2 disks will
fail as Nova does not populate this value when creating the disk.

Nova needs to at a minimum start populating this field and depending on
the outcome of the thread upstream in Libvirt also potentially handle
the upgrade case where we may need to rebase existing disks in order to
update the metadata.

For now this change simply adds the backing_fmt option to the qemu-img
command line used to create these disks.

[1] 3615e8b39b
[2] https://www.redhat.com/archives/libvir-list/2020-February/msg00616.html

Partial-Bug: #1864020
Change-Id: I77ebada015f6522a300be4fa043fb8676458402b
 		2020-02-26 18:26:47 +00:00
api-guide/source Enable live migration with qos ports 2020-02-03 11:43:12 +01:00
api-ref/source Merge "Follow-up: Add delete_on_termination to volume-attach API" 2020-02-20 00:38:42 +00:00
devstack Merge "Find instance in another cell during floating IP re-association" 2019-09-13 15:19:55 +00:00
doc Merge "trivial: Use recognized extra specs in tests" 2020-02-26 12:08:11 +00:00
etc/nova nova-net: Kill it 2020-01-14 21:25:56 +00:00
gate Convert legacy nova-live-migration and nova-multinode-grenade to py3 2019-11-14 16:06:02 +00:00
nova libvirt: Provide the backing file format when creating qcow2 disks 2020-02-26 18:26:47 +00:00
playbooks Enable cross-cell resize in the nova-multi-cell job 2019-12-23 10:10:57 -05:00
releasenotes Merge "conf: Deprecate '[scheduler] driver'" 2020-02-26 12:07:52 +00:00
roles Enable cross-cell resize in the nova-multi-cell job 2019-12-23 10:10:57 -05:00
tools Keep pre-commit inline with hacking and fix whitespace 2019-12-12 14:56:39 +00:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Delete the placement code 2019-04-28 20:06:15 +00:00
.gitreview OpenDev Migration Patch 2019-04-19 19:45:52 +00:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.pre-commit-config.yaml Switch to hacking 2.x 2020-01-17 11:30:40 +00:00
.stestr.conf Finish stestr migration 2017-11-24 16:51:12 -05:00
.zuul.yaml Merge "zuul: Add Fedora based jobs to the experimental queue" 2020-02-20 15:03:03 +00:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Merge "Make it easier to run a selection of tests relevant to ongoing work" 2019-11-22 20:58:18 +00:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Fix broken URLs 2017-09-07 15:42:31 +02:00
README.rst Start README.rst with a better title 2019-11-19 17:29:28 +01:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Added openssh-client into bindep 2019-10-23 07:21:23 +00:00
lower-constraints.txt Allow TLS ciphers/protocols to be configurable for console proxies 2020-02-12 15:05:22 -06:00
requirements.txt Allow TLS ciphers/protocols to be configurable for console proxies 2020-02-12 15:05:22 -06:00
setup.cfg Merge "trivial: Remove FakeScheduler" 2020-02-26 12:07:45 +00:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt requirements: Limit hacking to one minor version 2020-01-20 14:35:19 +00:00
tox.ini Switch to hacking 2.x 2020-01-17 11:30:40 +00:00

README.rst

OpenStack Nova

image

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: