OpenStack Compute (Nova)
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Sean Mooney 5c5a6b93a0 PCI: do not force remove allocated devices
In the ocata release the pci_passthrough_whitelist
was moved from the [DEFAULT] section of the nova.conf
to the [pci] section and renamed to passthrough_whitelist.

On upgrading if the operator chooses to migrate the config
value to the new section it is not uncommon
to forget to rename the config value.
Similarly if an operator is updateing the whitelist and
mistypes the value it can also lead to the whitelist
being ignored.

As a result of either error the nova compute agent
would delete all database entries for a host regardless of
if the pci device was in use by an instance. If this occurs
the only recorse for an operator is to delete and recreate
the guest on that host after correcting the error or manually
restore the database to backup or otherwise consistent state.

This change alters the _set_hvdevs function to not force
remove allocated or claimed devices if they are no longer
present in the pci whitelist.

Conflicts:
  nova/pci/manager.py

Closes-Bug: #1633120
Change-Id: I6e871311a0fa10beaf601ca6912b4a33ba4094e0
(cherry picked from commit 26c41eccad)
2019-04-03 12:29:15 +01:00
api-guide/source Removes unnecessary utf-8 encoding 2016-12-20 10:27:01 +07:00
api-ref/source Add policy rule to block image-backed servers with 0 root disk flavor 2018-06-18 14:16:11 -04:00
contrib Merge "changed quantum to neutron in vif-openstack" 2014-03-05 10:45:05 +00:00
devstack Skip test_rebuild_server_in_error_state for cells v1 2017-08-22 18:42:29 +00:00
doc Don't delete neutron port when attach failed 2018-10-03 17:10:04 +02:00
etc/nova Fix doc generation warnings 2017-03-06 18:51:19 +09:00
gate move gate hooks to gate/ 2017-01-04 11:05:16 +00:00
nova PCI: do not force remove allocated devices 2019-04-03 12:29:15 +01:00
playbooks/legacy/nova-live-migration Replace openstack.org git:// URLs with https:// 2019-03-24 20:34:43 +00:00
plugins/xenserver XenAPI Remove useless files when use os-xenapi lib 2017-01-10 18:06:17 -08:00
releasenotes Merge "Don't delete neutron port when attach failed" into stable/ocata 2018-10-05 12:50:20 +00:00
tools Prepare for using standard python tests 2017-02-09 18:01:02 +00:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore doc: Integrate oslo_policy.sphinxpolicygen 2016-10-20 10:31:01 +01:00
.gitreview Update .gitreview for stable/ocata 2017-02-03 19:10:42 +00:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.testr.conf [placement] Adjust the name of the gabbi tests 2016-09-20 19:14:44 +00:00
.zuul.yaml Drop legacy-grenade-dsvm-neutron-multinode-live-migration 2019-02-28 18:05:54 -05:00
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:37 +00:00
HACKING.rst hacking: Use uuidutils or uuidsentinel to generate UUID 2016-11-29 11:49:24 +05:30
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Add a maintainers file 2015-05-23 03:22:07 +10:00
README.rst Show team and repo badges on README 2016-11-25 13:55:29 +01:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Update bindep.txt for doc builds 2017-11-21 20:09:30 +00:00
requirements.txt Updated from global requirements 2017-08-09 01:01:23 +00:00
run_tests.sh Add description on how to run ./run_test.sh -8 2016-01-11 13:17:04 +00:00
setup.cfg Fix doc generation warnings 2017-03-06 18:51:19 +09:00
setup.py Updated from global requirements 2015-09-17 16:41:48 +00:00
test-requirements.txt Updated from global requirements 2017-01-26 18:48:41 +00:00
tests-functional-py3.txt Remove invalid URL in gabbi tests 2017-01-17 21:10:45 +00:00
tests-py3.txt Enable virt.vmwareapi test cases on Python 2017-01-18 11:14:24 +08:00
tox.ini Update UPPER_CONSTRAINTS_FILE for stable/ocata 2017-02-03 19:10:44 +00:00

README.rst

Team and repository tags

image

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 and OpenStack Ironic.

OpenStack Nova is distributed under the terms of the Apache License, Version 2.0. The full terms and conditions of this license are detailed in the LICENSE file.

API

To learn how to use Nova's API, consult the documentation available online at:

http://developer.openstack.org/api-guide/compute/ http://developer.openstack.org/api-ref/compute/

For more information on OpenStack APIs, SDKs and CLIs, please see:

http://www.openstack.org/appdev/ http://developer.openstack.org/

Operators

To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:

http://docs.openstack.org

For information about the different compute (hypervisor) drivers supported by Nova, please read:

http://docs.openstack.org/developer/nova/feature_classification.html

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:

http://bugs.launchpad.net/nova

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:

http://docs.openstack.org/developer/nova/