The valid architectures for an image in nova are defined here:
https://github.com/openstack/nova/blob/13.0.0.0rc1/nova/compute/arch.py#L72
I've added Horizon to this bug report since Horizon could create a
dropdown box using that list (although horizon might not be able to
import that code and it's not available in the API/CLI, so it might just
have to be copied into horizon and kept synchronized with nova).
For nova, we could do some image property validation for the
architecture in the API so we could fail with a better error than what
you get from the compute side when spawn fails.
** Also affects: horizon
Importance: Undecided
Status: New
** Changed in: nova
Status: New => Confirmed
** Changed in: nova
Importance: Undecided => Low
** Tags added: api images
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https://bugs.launchpad.net/bugs/1558866
Title:
Architecture ValueError Uncaught API Exception
Status in OpenStack Dashboard (Horizon):
New
Status in OpenStack Compute (nova):
Confirmed
Bug description:
If an image is imported with an invalid Architecture, instances are
unable to launch and cause a ValueError exception. This exception is
only visible in logs and UI only tells user an exception occurred.
Running Mirantis Openstack 8.0 (nova-api 2:12.0.0-1~u14.04+mos43)
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/dist-packages/nova/objects/image_meta.py", line 457, in
from_dict
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions
obj._set_attr_from_legacy_names(image_props)
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/dist-packages/nova/objects/image_meta.py", line 388, in
_set_attr_from_legacy_names
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions
setattr(self, new_key, image_props[legacy_key])
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/dist-packages/oslo_versionedobjects/base.py", line 72, in
setter
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions
field_value = field.coerce(self, name, value)
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/dist-packages/oslo_versionedobjects/fields.py", line 189,
in coerce
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions return
self._type.coerce(obj, attr, value)
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions File
"/usr/lib/python2.7/dist-packages/nova/objects/fields.py", line 87, in coerce
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions raise
ValueError(msg)
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions ValueError:
Architecture name 'x64' is not valid
2016-03-18 01:13:35.846 28025 ERROR nova.api.openstack.extensions
2016-03-18 01:13:35.848 28025 INFO nova.api.openstack.wsgi
[req-f56ff830-6e2d-46ab-b1a3-50f021725374 813401d7df1d4ad68388dee16def6a6b
9e90e9d0bb8c43b3a6fa3d2b1fb08efa - - -] HTTP exception thrown: Unexpected API
Error. Please report this at http://bugs.launchpad.net/nova/ and attach the
Nova API log if possible.
Reproduce:
Import image with architecture named 'x64' (or presumably anything, since
it's a freeform input), try to launch instance of image.
Expected Result:
Image launches, or if it cannot and error is needed, error should tell user
there is an invalid architecture. If architecture can only be chosen from
limited options, it should probably be a combobox rather than a freeform input
when creating a new image.
Actual Result:
Generic API exception. Image fails to launch.
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