Public bug reported:
Description
===========
provide 2 block device mappings, both bootable volumes with only 1 of
them having a boot_index (i.e. only 1 specified as boot device) and both
have different bus types. Observe booted instance is actually an
instance of the image with no boot_index!
Steps to reproduce
==================
Created volume from cirros image
Created volume from ubuntu image
Attempted to create instance sourced from ubuntu volume and also have the
cirros volume attached
- set boot index to 0 for ubuntu volume
- set no boot index for cirros (in trial 2, i set it to -1 explicitly so it
would only be an attached volume)
- bus type provided for ubuntu volume was 'ide'
- bus type provided for cirros volume was 'virtio'
- send server payload
- observed the instance is booted from the cirros volume despite having no boot
index!
sample payload :
{"server":{"flavorRef":"8e41c8ce-8bca-4012-92f0-6d83dc4e7dfe","name
":"vol-test_cirros-bootable_0_cb3378f2-01d1-4662-8c9e-
df6cff05c056","networks":[{"port":"1c11a3f9-47e6-4374-9890-54b5dd91f7c2"}],"block_device_mapping_v2":[{"uuid":"03b3c938-ed05-41a3-af92-5344431892ae","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"virtio" },{"uuid":"7cebbbc0-113e-
452b-b577-9043140656bf","boot_index":"0","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"ide" },{"uuid":"5870a3d6-f475-4312-b26f-
5162d76b9074","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"virtio" }]}
NOTE : when the ubuntu volume is the only volume and the bus type is IDE, the
created instance is an ubuntu instance
Also, if both volumes have the bus types set to virtio, the ubuntu instance is
correctly booted.
Appears to be some bus type related issue, but it wasn't documented anywhere
and there's no error.
Expected result
===============
Boot from the volume with boot index provided or fail with error
Actual result
=============
Boots from the other volume, even though it has no boot index.
Environment
===========
Openstack Kilo
hypervisor : libvirt + KVM
storage : LVM
networking : neutron with openvswitch
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1570107
Title:
block device mapping : booting up attached volumes with no boot index
when multiple bootable volumes are used
Status in OpenStack Compute (nova):
New
Bug description:
Description
===========
provide 2 block device mappings, both bootable volumes with only 1 of
them having a boot_index (i.e. only 1 specified as boot device) and
both have different bus types. Observe booted instance is actually an
instance of the image with no boot_index!
Steps to reproduce
==================
Created volume from cirros image
Created volume from ubuntu image
Attempted to create instance sourced from ubuntu volume and also have the
cirros volume attached
- set boot index to 0 for ubuntu volume
- set no boot index for cirros (in trial 2, i set it to -1 explicitly so it
would only be an attached volume)
- bus type provided for ubuntu volume was 'ide'
- bus type provided for cirros volume was 'virtio'
- send server payload
- observed the instance is booted from the cirros volume despite having no
boot index!
sample payload :
{"server":{"flavorRef":"8e41c8ce-8bca-4012-92f0-6d83dc4e7dfe","name
":"vol-test_cirros-bootable_0_cb3378f2-01d1-4662-8c9e-
df6cff05c056","networks":[{"port":"1c11a3f9-47e6-4374-9890-54b5dd91f7c2"}],"block_device_mapping_v2":[{"uuid":"03b3c938-ed05-41a3-af92-5344431892ae","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"virtio" },{"uuid":"7cebbbc0-113e-
452b-b577-9043140656bf","boot_index":"0","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"ide" },{"uuid":"5870a3d6-f475-4312-b26f-
5162d76b9074","source_type":"volume","destination_type":"volume","delete_on_termination":"false","disk_bus":
"virtio" }]}
NOTE : when the ubuntu volume is the only volume and the bus type is IDE, the
created instance is an ubuntu instance
Also, if both volumes have the bus types set to virtio, the ubuntu instance
is correctly booted.
Appears to be some bus type related issue, but it wasn't documented anywhere
and there's no error.
Expected result
===============
Boot from the volume with boot index provided or fail with error
Actual result
=============
Boots from the other volume, even though it has no boot index.
Environment
===========
Openstack Kilo
hypervisor : libvirt + KVM
storage : LVM
networking : neutron with openvswitch
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