Matt Riedemann 70afc0d540 Handle conflicts for os-assisted-volume-snapshots
Since a guest-assisted disk snapshot is performed on the compute
that the instance is running on, there are only certain states
that the instance can be in to perform this operation. For example,
if the instance is shelved_offloaded then the instance does not
have a host and we can't cast to a compute to perform the snapshot.

Given how unrestrictive this API was before, the only restriction
we place on the state is that the instance does not have a task_state
set. We allow any vm_state for performing the operation as long as
there is a host and no task_state.

As noted in the code, we'd normally return a 409 in this case but
according to our microversion docs [1] that would be a new error
code and require a version bump, so this change just uses 400 and
leaves a TODO to make this 409 in a later mass return code update
microversion.

[1] https://docs.openstack.org/developer/nova/api_microversion_dev.html#f1

Change-Id: I1dc54a38f02bb48921bcbc4c2fdcc2c946e783c1
Closes-Bug: #1657585
2017-03-02 15:10:26 -05:00
2017-02-24 17:43:08 +00:00
2017-01-04 11:05:16 +00:00
2017-02-23 12:42:44 +00:00
2014-05-07 12:14:26 -07:00
2012-02-08 19:30:39 -08:00
2010-05-27 23:05:26 -07:00
2015-05-23 03:22:07 +10:00
2016-11-25 13:55:29 +01:00
2017-02-24 17:43:08 +00:00
2015-09-17 16:41:48 +00:00

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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 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/

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