OpenStack Compute (Nova)
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melanie witt 7500c1910c libvirt: set device address tag only if setting disk unit
In Pike, we began setting disk unit values manually for the
'virtio-scsi' controller model in order to allow up to 256 devices [1].
We do this by setting the disk unit of the address tag manually for the
guest config. If we do not set the address tag manually, libvirt would
autogenerate it for us.

A problem occurs when a user has a SCSI disk that is a volume or isn't
using the 'virtio-scsi' controller model because we're not guarding our
manual setting of the address tag in the guest config by the disk unit,
in addition to the SCSI bus. This means that for a SCSI volume, we
generate an address tag like '<address type="drive" controller="0"/>'
for any SCSI volume, so a user with more than one device will get the
following error when they try to boot an instance:

  Failed to start libvirt guest: libvirtError: unsupported
    configuration: Found duplicate drive address for disk with target name
    'sda' controller='0' bus='0' target='0' unit='0'

This updates the conditionals to only manually set the address tag if
the bus is SCSI _and_ the disk unit has been specified. Otherwise, let
libvirt autogenerate the address tag and take care of avoiding
collisions.

[1] https://bugs.launchpad.net/nova/+bug/1686116

Closes-Bug: #1792077

Change-Id: Iefab05e84ccc0bf8f15bdbbf515a290d282dbc5d
(cherry picked from commit 48fd81648a)
2019-04-17 18:57:07 +00:00
api-guide/source Documentation for bandwidth support 2019-03-18 11:24:56 +01:00
api-ref/source api-ref: Add description for BDM volume_size 2019-03-13 16:17:20 +00:00
devstack Remove the CachingScheduler 2018-10-18 17:55:36 -04:00
doc Merge "doc: Fix openstack CLI command" into stable/stein 2019-04-10 20:24:08 +00:00
etc/nova Add oslo.privsep to config-generator list 2019-03-01 16:43:21 +00:00
gate update gate test for removal of force evacuate 2019-03-08 16:31:31 +00:00
nova libvirt: set device address tag only if setting disk unit 2019-04-17 18:57:07 +00:00
playbooks/legacy Replace openstack.org git:// URLs with https:// 2019-03-24 20:34:47 +00:00
releasenotes Merge "Fix links to neutron QoS minimum bandwidth doc" 2019-03-21 16:41:35 +00:00
tools Make Xen code py3-compatible 2018-08-10 20:04:19 +00:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Remove Placement API reference 2018-11-28 03:38:41 +00:00
.gitreview Update .gitreview for stable/stein 2019-03-22 03:50:01 +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 Merge "add python 3.7 unit test job" 2019-03-15 14:15:41 +00:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Document how to make tests log at DEBUG level 2019-02-13 20:46:01 +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 Docs: modernise links 2018-03-24 20:27:11 +08:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Merge "Bindep does not catch missing libpcre3-dev on Ubuntu" 2018-02-14 07:31:09 +00:00
lower-constraints.txt Merge "Require python-ironicclient>=2.7.0" 2019-03-22 02:55:13 +00:00
requirements.txt Merge "Convert driver supported capabilities to compute node provider traits" 2019-03-05 09:50:12 +00:00
setup.cfg Update mailinglist from dev to discuss 2018-12-05 09:44:35 +08:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Require python-ironicclient>=2.7.0 2019-03-12 15:10:11 -04:00
tox.ini Update UPPER_CONSTRAINTS_FILE for stable/stein 2019-03-22 03:50:05 +00:00

README.rst

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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: