cinder
It's possible that over time, there are some volumes that have attachments which are no longer valid. This can happen when a server is being deleted via Nova but the request to delete the volume and the attachment fails. You can get a list of volumes which have attachments that are no longer valid by running the following command:
for volume in $(openstack volume list --all-projects --status in-use -c ID -f value | tac); do for server in $(openstack volume show $volume -f json| jq -r '.attachments[0].server_id'); do name=$(openstack server show $server -c name -f value 2>&1) if [ "$name" = "No server with a name or ID of '$server' exists." ]; then echo openstack volume set --detached $volume echo openstack volume delete $volume else echo "Volume $volume is attached to $name" fi done done
Note
You can optionally replace
--all-projects
by--project <project_id>
in theopenstack volume list
command to filter the volumes by project.
Cinder supports a wide variety of storage backends to store volume backups. They can be referenced from the Cinder documentation.
It is possible to backup volumes into a Ceph cluster. You are able to store the backups inside the same Ceph cluster that is deployed by Atmosphere or an external cluster that you deploy.
If you're looking to use the Ceph cluster that is deployed by Atmosphere, you will need to simply set the following inventory variables:
cinder_helm_values: conf: cinder: DEFAULT: backup_driver: cinder.backup.drivers.ceph.CephBackupDriver
Warning
It's not recommended to use same backend for volumes and backups. If you are using Atmosphere's Ceph for volumes, you should use a different Ceph cluster for backups.
If you want to use an external Ceph cluster, you will need to set the following inventory variables:
cinder_helm_values: conf: cinder: DEFAULT: backup_driver: cinder.backup.drivers.ceph.CephBackupDriver backup_ceph_user: cinder backup_ceph_pool: backups backup: external_ceph_rbd: enabled: true admin_keyring: AQCBYNhjMtiXEBAA3weDsYA2zoPqOXTRijQtzg== conf: global: fsid: 795115d3-2b3d-567f-b5f8-72703d896b56 mon host: 10.96.240.153,10.96.240.126,10.96.240.240
Atmosphere will automatically create a cephx
user which matches the provided backup_ceph_user
variable. It will also create a pool with the name of the backup_ceph_pool
variable.