Hi,

I'm using Openstack Mitaka and Foreman 1.12.3.

If I create an instance from foreman without creating a new boot volume, it is working fine.
But if I check "Create new boot volume from image", new volume is created but instance launching failed with this error:

[app] [W] Failed to create a compute openstack-mqt (OpenStack) instance test-foreman.qt.cls.fr: Invalid input for field/attribute device_name. Value: None. None is not of type 'string'
 |
 | RuntimeError: Invalid input for field/attribute device_name. Value: None. None is not of type 'string'
 | /usr/share/foreman/app/models/compute_resources/foreman/model/openstack.rb:113:in `rescue in create_vm'
 | /usr/share/foreman/app/models/compute_resources/foreman/model/openstack.rb:97:in `create_vm'
 | /usr/share/foreman/app/models/concerns/orchestration/compute.rb:82:in `setCompute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:162:in `execute'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:107:in `block in process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:99:in `each'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:99:in `process'
 | /usr/share/foreman/app/models/concerns/orchestration.rb:35:in `on_save'

It seems that there is an issue with device name given by foreman to openstack, but I don't know how to check passed values.

If I launch an instance directly from Horizon with boot volume creation, it is working fine.

Thanks.