OpenStack Compute (Nova)
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Matt Riedemann 4a2c9a4887 Rollback instance.image_ref on failed rebuild
When rebuilding and changing the image, we run the new image
through the scheduler to see if it's valid for the instance
on its current compute host. The API saves off the new image
ref on the instance before casting to conductor to run through
the scheduler. If the scheduler fails, the instance.image_ref was
not being rolled back, which meant a user could attempt the rebuild
with the same invalid image a second time and the API, seeing the
instance.image_ref hasn't changed (even though it's not the actual
backing image for the server), will bypass the scheduler and rebuild
the instance with that invalid image.

This fixes the issue by using the original image ref, passed from
API to conductor during rebuild, to reset the instance.image_ref
in the case of a failure.

Note that there are other things changed on the instance in the API
which this patch does not attempt to recover as that's a bigger
work item which likely involves substantial refactoring of the code.

Closes-Bug: #1746032

Change-Id: I3399a66fe9b1297cd6b0dca440145393ceaef41f
2018-01-29 14:05:03 -05:00
api-guide/source Replace curly quotes with straight quotes 2018-01-23 09:25:05 +00:00
api-ref/source Merge "Fix 'all_tenants' & 'all_projects' type in api-ref" 2018-01-27 11:32:08 +00:00
contrib trivial: Remove "vif" script 2017-08-07 16:00:10 +01:00
devstack Blacklist test_extend_attached_volume from cells v1 job 2017-10-05 17:31:05 -04:00
doc Merge "Add exception to no-upcall note of cells doc" 2018-01-27 11:32:19 +00:00
etc/nova Move remaining uses of parted to privsep. 2018-01-24 22:26:36 +00:00
gate move gate hooks to gate/ 2017-01-04 11:05:16 +00:00
nova Rollback instance.image_ref on failed rebuild 2018-01-29 14:05:03 -05:00
placement-api-ref/source placement: support traits in allocation candidates API 2018-01-22 22:10:10 +08:00
playbooks/legacy/nova-lvm zuul: Move legacy jobs to project 2018-01-04 09:58:27 +00:00
releasenotes Merge "Ironic: Get IP address for volume connector" 2018-01-27 22:05:30 +00:00
tools Finish stestr migration 2017-11-24 16:51:12 -05:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Fix test runner config issues with os-testr 1.0.0 2017-09-13 17:11:57 -04:00
.gitreview Add .gitreview config file for gerrit. 2011-10-24 15:07:19 -04:00
.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 Make sure that functional test triggered on sample changes 2018-01-16 15:53:23 +01:00
CONTRIBUTING.rst Workflow documentation is now in infra-manual 2014-12-05 03:30:37 +00:00
HACKING.rst doc: fix link to creating unit tests in contributor guide 2017-11-14 11:22:43 -05:00
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 doc: Rework README to reflect new doc URLs 2017-08-03 16:06:08 -04:00
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 21:01:09 +01:00
requirements.txt Updated from global requirements 2018-01-19 20:24:00 +00:00
setup.cfg Deprecate the IronicHostManager 2017-11-28 15:23:48 -05:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Merge "Updated from global requirements" 2018-01-27 15:29:24 +00:00
tests-py3.txt Skip unit tests for SSL + py3 2017-03-02 14:30:16 +08:00
tox.ini Merge "add whereto for testing redirect rules" 2018-01-25 06:48:57 +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, 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: