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Message #69274
[Bug 1482040] Re: rebuild volume-backed instance with image does not replace image in root disk
** Also affects: nova/ocata
Importance: Undecided
Status: New
** Also affects: nova/pike
Importance: Undecided
Status: New
** Changed in: nova/ocata
Status: New => Confirmed
** Changed in: nova/pike
Status: New => Confirmed
** Changed in: nova/ocata
Importance: Undecided => Medium
** Changed in: nova/pike
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1482040
Title:
rebuild volume-backed instance with image does not replace image in
root disk
Status in OpenStack Compute (nova):
In Progress
Status in OpenStack Compute (nova) ocata series:
Confirmed
Status in OpenStack Compute (nova) pike series:
Confirmed
Bug description:
When rebuild an volume-backed instance using normal images from glance,
nothing will be changed for the instance after rebuild except the image name
will be added to the instance, the instance is actually again built using the same
volume.
root@zheng-dev1:/var/log/nova# nova boot --flavor 1 --boot-volume daaddb77-4257-4ccd-86f2-220b31a0ce9b --nic net-id=8744ee96-7690-43bb-89b4-fcac805557bc test_rebuild
+--------------------------------------+--------------------------------------------------+
| Property | Value |
+--------------------------------------+--------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hypervisor_hostname | - |
| OS-EXT-SRV-ATTR:instance_name | instance-0000001a |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | KX5f2qfJBs9S |
| config_drive | |
| created | 2015-08-06T04:09:06Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | 2f91193c-c462-4bcf-ad87-692c3d263cfd |
| image | Attempt to boot from volume - no image supplied |
| key_name | - |
| metadata | {} |
| name | test_rebuild |
| os-extended-volumes:volumes_attached | [{"id": "daaddb77-4257-4ccd-86f2-220b31a0ce9b"}] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | b8112a8d8227490eba99419b8a8c2555 |
| updated | 2015-08-06T04:09:06Z |
| user_id | ed64bccd0227444fa02dbd7695769a7d |
+--------------------------------------+--------------------------------------------------+
root@zheng-dev1:/var/log/nova# nova rebuild 2f91193c-c462-4bcf-ad87-692c3d263cfd 7bdff9a3-d051-4e75-bcd3-de69dbffe063
+-------------------+----------------------------------------------------------------+
| Property | Value |
+-------------------+----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | GParrEjj3DEW |
| created | 2015-08-06T04:09:06Z |
| flavor | m1.tiny (1) |
| hostId | e9701452373fee3a5897683c6b914f4ba33b38b0fcff3b3719615bbd |
| id | 2f91193c-c462-4bcf-ad87-692c3d263cfd |
| image | cirros-0.3.4-x86_64-uec (7bdff9a3-d051-4e75-bcd3-de69dbffe063) |
| metadata | {} |
| name | test_rebuild |
| progress | 0 |
| public network | 2001:db8::19, 172.24.4.24 |
| status | REBUILD |
| tenant_id | b8112a8d8227490eba99419b8a8c2555 |
| updated | 2015-08-06T04:09:50Z |
| user_id | ed64bccd0227444fa02dbd7695769a7d |
+-------------------+----------------------------------------------------------------+
root@zheng-dev1:/var/log/nova# nova show 2f91193c-c462-4bcf-ad87-692c3d263cfd
+--------------------------------------+----------------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | zheng-dev1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname | zheng-dev1 |
| OS-EXT-SRV-ATTR:instance_name | instance-0000001a |
| OS-EXT-STS:power_state | 1 |
| OS-EXT-STS:task_state | - |
| OS-EXT-STS:vm_state | active |
| OS-SRV-USG:launched_at | 2015-08-06T04:10:00.000000 |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| config_drive | True |
| created | 2015-08-06T04:09:06Z |
| flavor | m1.tiny (1) |
| hostId | e9701452373fee3a5897683c6b914f4ba33b38b0fcff3b3719615bbd |
| id | 2f91193c-c462-4bcf-ad87-692c3d263cfd |
| image | cirros-0.3.4-x86_64-uec (7bdff9a3-d051-4e75-bcd3-de69dbffe063) |
| key_name | - |
| metadata | {} |
| name | test_rebuild |
| os-extended-volumes:volumes_attached | [{"id": "daaddb77-4257-4ccd-86f2-220b31a0ce9b"}] |
| progress | 0 |
| public network | 2001:db8::19, 172.24.4.24 |
| security_groups | default |
| status | ACTIVE |
| tenant_id | b8112a8d8227490eba99419b8a8c2555 |
| updated | 2015-08-06T04:10:00Z |
| user_id | ed64bccd0227444fa02dbd7695769a7d |
+--------------------------------------+----------------------------------------------------------------+
add using virsh to see the xml, we can see that the instance is still
booted from the volume
</disk>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='/dev/disk/by-path/ip-10.250.10.17:3260-iscsi-iqn.2010-10.org.openstack:volume-daaddb77-4257-4ccd-86f2-220b31a0ce9b-lun-1'/>
<target dev='vda' bus='virtio'/>
<serial>daaddb77-4257-4ccd-86f2-220b31a0ce9b</serial>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</disk>
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References
