OpenStack Compute (Nova)
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melanie witt 62bf0ef129 Disallow CONF.compute.max_disk_devices_to_attach = 0
The CONF.compute.max_disk_devices_to_attach option controls the maximum
number of disk devices allowed to attach to an instance. If it is set
to 0, it will literally allow no disk device for instances, preventing
them from being able to boot.

This adds a note to the config option help to call this out and changes
nova-compute to raise InvalidConfiguration during init_host if
[compute]max_disk_devices_to_attach has been set to 0. The nova-compute
service will fail to start if the option is set to 0.

Note: there doesn't appear to be any way to disallow particular values
in a oslo.config IntOpt other than the min/max values. Here we need the
min value to be -1 to represent unlimited. There is a 'choices' kwarg
available but that is only for enumerating valid values and we need to
allow any integer >= 1 as well.

Change-Id: I6e30468bc28f661ddc17937ab1de04a706f05063
Closes-Bug: #1897950
(cherry picked from commit 25a632a4e1)
(cherry picked from commit 8e12b81839)
(cherry picked from commit 4ad7e5e263)
2021-01-29 09:36:43 +00:00
api-guide/source Allow resizing server with port resource request 2019-09-12 10:35:22 -04:00
api-ref/source compute: Validate a BDMs disk_bus when provided 2020-09-03 15:24:37 +01:00
devstack Merge "Find instance in another cell during floating IP re-association" 2019-09-13 15:19:55 +00:00
doc docs: Clarify configuration steps for PF devices 2020-11-26 11:34:03 +00:00
etc/nova Remove an unused file and a related description 2019-09-13 10:33:32 +09:00
gate nova-live-migration: Ensure subnode is fenced during evacuation testing 2020-03-23 10:21:26 +00:00
nova Disallow CONF.compute.max_disk_devices_to_attach = 0 2021-01-29 09:36:43 +00:00
playbooks Merge "Convert nova-lvm job to zuul v3" 2019-09-04 20:08:05 +00:00
releasenotes Update pci stat pools based on PCI device changes 2021-01-11 13:06:24 +05:30
roles/run-post-test-hook Convert nova-next to a zuul v3 job 2019-07-23 11:32:35 -04:00
tools Follow up for cherry-pick check for merge patch 2020-10-21 18:08:51 +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 Update .gitreview for stable/train 2019-09-27 09:06:47 +00:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.stestr.conf Finish stestr migration 2017-11-24 16:51:12 -05:00
.zuul.yaml zuul: remove legacy-tempest-dsvm-neutron-dvr-multinode-full 2020-07-17 23:17:48 +02:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Remove descriptions of nonexistent hacking rules 2019-08-26 14:55:51 +09:00
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 Update api-ref location 2019-07-22 19:17:28 +02:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Added openssh-client into bindep 2019-10-29 07:02:24 +00:00
lower-constraints.txt [stable-only] Cap bandit to 1.6.2 and raise hacking, flake8 and stestr 2020-12-23 11:15:08 +00:00
requirements.txt Merge "Tune up db.instance_get_all_uuids_by_hosts" 2019-09-23 19:58:43 +00:00
setup.cfg Rename 'nova.common.config' module to 'nova.middleware' 2019-08-16 00:53:03 +01:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt [stable-only] Cap bandit to 1.6.2 and raise hacking, flake8 and stestr 2020-12-23 11:15:08 +00:00
tox.ini Check cherry-pick hashes in pep8 tox target 2020-06-22 16:25:34 +02:00

README.rst

Team and repository tags

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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: