Bug 1985459
| Summary: | [OSP16.1][cinder] volume deleted after instance is destroyed | ||
|---|---|---|---|
| Product: | Red Hat OpenStack | Reporter: | Gorka Eguileor <geguileo> |
| Component: | openstack-cinder | Assignee: | Gorka Eguileor <geguileo> |
| Status: | CLOSED ERRATA | QA Contact: | Tzach Shefi <tshefi> |
| Severity: | high | Docs Contact: | RHOS Documentation Team <rhos-docs> |
| Priority: | high | ||
| Version: | 16.1 (Train) | CC: | gfidente, jvisser, ltoscano, mburns, pgrist, senrique, slinaber, spower |
| Target Milestone: | z7 | Keywords: | Triaged |
| Target Release: | 16.1 (Train on RHEL 8.2) | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | openstack-cinder-15.4.0-1.20210713144326.el8ost | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-12-09 20:20:17 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1985453 | ||
| Bug Blocks: | 1977845 | ||
|
Description
Gorka Eguileor
2021-07-23 15:41:42 UTC
Verified on:
openstack-cinder-15.4.0-1.20210713144326.el8ost.noarch
Installed a deployment using RHEL NFS as Cinder's backend:
Backend config section:
[tripleo_nfs]
backend_host=hostgroup
volume_backend_name=tripleo_nfs
volume_driver=cinder.volume.drivers.nfs.NfsDriver
nfs_shares_config=/etc/cinder/shares-nfs.conf
nfs_mount_options=context=system_u:object_r:container_file_t:s0
nfs_snapshot_support=True
nas_secure_file_operations=False
nas_secure_file_permissions=False
1. Create a bootable volume in cinder nfs backend
(overcloud) [stack@undercloud-0 ~]$ cinder create 2 --name BootVol --image 4910307d-e428-4145-9dc4-bfa5a3c23c20
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2021-11-16T14:46:38.000000 |
| description | None |
| encrypted | False |
| id | 0affa559-fbfb-4879-8c83-074a22c34896 |
| metadata | {} |
| migration_status | None |
| multiattach | False |
| name | BootVol |
| os-vol-host-attr:host | None |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | d0fadc14814245b0a6a00240a4a85ee9 |
| replication_status | None |
| size | 2 |
| snapshot_id | None |
| source_volid | None |
| status | creating |
| updated_at | None |
| user_id | 92ef968f291046a0b6879d0a0e1a12cd |
| volume_type | tripleo |
+--------------------------------+--------------------------------------+
2. Create a bfv instance with the volume
(overcloud) [stack@undercloud-0 ~]$ nova boot --flavor tiny --block-device source=volume,id=0affa559-fbfb-4879-8c83-074a22c34896,dest=volume,size=2,shutdown=preserve,bootindex=0 myInstanceFromVolume --nic net-id=efd5f6df-f74d-4542-83c0-f72a17e7affb
+--------------------------------------+----------------------------------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hostname | myinstancefromvolume |
| OS-EXT-SRV-ATTR:hypervisor_hostname | - |
| OS-EXT-SRV-ATTR:instance_name | |
| OS-EXT-SRV-ATTR:kernel_id | |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | |
| OS-EXT-SRV-ATTR:reservation_id | r-09lnw27z |
| OS-EXT-SRV-ATTR:root_device_name | - |
| OS-EXT-SRV-ATTR:user_data | - |
| 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 | 5FqZ9VwpFxBC |
| config_drive | |
| created | 2021-11-16T14:49:01Z |
| description | - |
| flavor:disk | 1 |
| flavor:ephemeral | 0 |
| flavor:extra_specs | {} |
| flavor:original_name | tiny |
| flavor:ram | 512 |
| flavor:swap | 0 |
| flavor:vcpus | 1 |
| hostId | |
| host_status | |
| id | 4faf1da3-c636-4c1f-92c2-c932b06e3d06 |
| image | Attempt to boot from volume - no image supplied |
| key_name | - |
| locked | False |
| locked_reason | - |
| metadata | {} |
| name | myInstanceFromVolume |
| os-extended-volumes:volumes_attached | [{"id": "0affa559-fbfb-4879-8c83-074a22c34896", "delete_on_termination": false}] |
| progress | 0 |
| security_groups | default |
| server_groups | [] |
| status | BUILD |
| tags | [] |
| tenant_id | d0fadc14814245b0a6a00240a4a85ee9 |
| trusted_image_certificates | - |
| updated | 2021-11-16T14:49:02Z |
| user_id | 92ef968f291046a0b6879d0a0e1a12cd |
+--------------------------------------+----------------------------------------------------------------------------------+
Instance is up:
(overcloud) [stack@undercloud-0 ~]$ nova list
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
| 4faf1da3-c636-4c1f-92c2-c932b06e3d06 | myInstanceFromVolume | ACTIVE | - | Running | internal=192.168.0.26 |
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
3. Take snapshot of the volume:
(overcloud) [stack@undercloud-0 ~]$ cinder snapshot-create BootVol --force --name SnapOfBVF
+-------------+--------------------------------------+
| Property | Value |
+-------------+--------------------------------------+
| created_at | 2021-11-16T14:56:36.741669 |
| description | None |
| id | 163b4c20-00a5-4ca5-99f7-ecae293a9a80 |
| metadata | {} |
| name | SnapOfBVF |
| size | 2 |
| status | creating |
| updated_at | None |
| volume_id | 0affa559-fbfb-4879-8c83-074a22c34896 |
+-------------+--------------------------------------+
(overcloud) [stack@undercloud-0 ~]$ cinder snapshot-list
+--------------------------------------+--------------------------------------+-----------+-----------+------+
| ID | Volume ID | Status | Name | Size |
+--------------------------------------+--------------------------------------+-----------+-----------+------+
| 163b4c20-00a5-4ca5-99f7-ecae293a9a80 | 0affa559-fbfb-4879-8c83-074a22c34896 | available | SnapOfBVF | 2 |
+--------------------------------------+--------------------------------------+-----------+-----------+------+
4. Stop and Start the instance
(overcloud) [stack@undercloud-0 ~]$ nova stop myInstanceFromVolume
Request to stop server myInstanceFromVolume has been accepted.
(overcloud) [stack@undercloud-0 ~]$ nova list
+--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+
| 4faf1da3-c636-4c1f-92c2-c932b06e3d06 | myInstanceFromVolume | SHUTOFF | - | Shutdown | internal=192.168.0.26 |
+--------------------------------------+----------------------+---------+------------+-------------+-----------------------------------+
Powered off^, now lets start it up:
(overcloud) [stack@undercloud-0 ~]$ nova start myInstanceFromVolume
Request to start server myInstanceFromVolume has been accepted.
(overcloud) [stack@undercloud-0 ~]$ nova list
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
| 4faf1da3-c636-4c1f-92c2-c932b06e3d06 | myInstanceFromVolume | ACTIVE | - | Running | internal=192.168.0.26 |
+--------------------------------------+----------------------+--------+------------+-------------+-----------------------------------+
If we check virsh:
()[root@compute-0 /]# virsh dumpxml instance-00000005 | grep volume
<source file='/var/lib/nova/mnt/9503cec640ed4e0a054b70af162f4d2b/volume-0affa559-fbfb-4879-8c83-074a22c34896.163b4c20-00a5-4ca5-99f7-ecae293a9a80' index='1'/>
As expected the disk now points to the volume's snapshot:
volume-0affa559-fbfb-4879-8c83-074a22c34896.163b4c20-00a5-4ca5-99f7-ecae293a9a80
NFS share shows both files:
[root@titan32 cinder]# ll -> the NFS share
total 106804
-rw-rw-r--. 1 1001 1001 0 Aug 9 14:49 cindernfs
-rw-rw-rw-. 1 nobody nobody 2147483648 Nov 16 14:54 volume-0affa559-fbfb-4879-8c83-074a22c34896
-rw-rw-rw-. 1 nobody nobody 851968 Nov 16 14:58 volume-0affa559-fbfb-4879-8c83-074a22c34896.163b4c20-00a5-4ca5-99f7-ecae293a9a80
-rw-rw-rw-. 1 nobody nobody 222 Nov 16 14:56 volume-0affa559-fbfb-4879-8c83-074a22c34896.info
Rather than pointing to the original volume as occurred (wrongly) we now use/point to the snapshot,
Good to verify!
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Red Hat OpenStack Platform 16.1.7 (Train) bug fix and enhancement advisory), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:3762 |