Attaches volumes that are created through the volume API to server instances. Also, lists volume attachments for a server, shows details for a volume attachment, and detaches a volume.
.. rest_method:: GET /servers/{server_id}/os-volume_attachments
List volume attachments for an instance.
Normal response codes: 200
Error response codes: unauthorized(401), forbidden(403), itemNotFound(404)
.. rest_parameters:: parameters.yaml - server_id: server_id_path - limit: limit_simple - offset: offset_simple
.. rest_parameters:: parameters.yaml - volumeAttachments: volumeAttachments - id: volume_attachment_id_resp - serverId: server_id - volumeId: volumeId_resp - device: attachment_device_resp - tag: device_tag_bdm_attachment_resp - delete_on_termination: delete_on_termination_attachments_resp - attachment_id: attachment_volume_id_resp - bdm_uuid: attachment_bdm_id_resp
Example List volume attachments for an instance: JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/list-volume-attachments-resp.json :language: javascript
Example List tagged volume attachments for an instance (v2.89): JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.89/list-volume-attachments-resp.json :language: javascript
.. rest_method:: POST /servers/{server_id}/os-volume_attachments
Attach a volume to an instance.
Normal response codes: 200
Error response codes: badRequest(400), unauthorized(401), forbidden(403), itemNotFound(404), conflict(409)
Note
From v2.20 attach a volume to an instance in SHELVED or SHELVED_OFFLOADED state is allowed.
Note
From v2.60, attaching a multiattach volume to multiple instances is supported for instances that are not SHELVED_OFFLOADED. The ability to actually support a multiattach volume depends on the volume type and compute hosting the instance.
Note
This is an asynchronous API, callers should poll the status and list of attachments of the volume within the volume API to determine when the attachment has completed successfully.
.. rest_parameters:: parameters.yaml - server_id: server_id_path - volumeAttachment: volumeAttachment_post - volumeId: volumeId - device: device - tag: device_tag_bdm_attachment - delete_on_termination: delete_on_termination_attachments_req
Example Attach a volume to an instance: JSON request
.. literalinclude:: ../../doc/api_samples/os-volumes/attach-volume-to-server-req.json :language: javascript
Example Attach a volume to an instance and tag it (v2.49): JSON request
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.49/attach-volume-to-server-req.json :language: javascript
Example Attach a volume to an instance with "delete_on_termination" (v2.79): JSON request
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.79/attach-volume-to-server-req.json :language: javascript
.. rest_parameters:: parameters.yaml - volumeAttachment: volumeAttachment - device: device_resp - id: attachment_id_resp - serverId: server_id - volumeId: volumeId_resp - tag: device_tag_bdm_attachment_resp - delete_on_termination: delete_on_termination_attachments_resp
Example Attach a volume to an instance: JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/attach-volume-to-server-resp.json :language: javascript
Example Attach a tagged volume to an instance (v2.70): JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.70/attach-volume-to-server-resp.json :language: javascript
Example Attach a volume with "delete_on_termination" (v2.79): JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.79/attach-volume-to-server-resp.json :language: javascript
.. rest_method:: GET /servers/{server_id}/os-volume_attachments/{volume_id}
Show a detail of a volume attachment.
Normal response codes: 200
Error response codes: unauthorized(401), forbidden(403), itemNotFound(404)
.. rest_parameters:: parameters.yaml - server_id: server_id_path - volume_id: volume_id_attached_path
.. rest_parameters:: parameters.yaml - volumeAttachment: volumeAttachment - id: volume_attachment_id_resp - serverId: server_id - volumeId: volumeId_resp - device: attachment_device_resp - tag: device_tag_bdm_attachment_resp - delete_on_termination: delete_on_termination_attachments_resp - attachment_id: attachment_volume_id_resp - bdm_uuid: attachment_bdm_id_resp
Example Show a detail of a volume attachment: JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/volume-attachment-detail-resp.json :language: javascript
Example Show a detail of a tagged volume attachment (v2.89): JSON response
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.89/volume-attachment-detail-resp.json :language: javascript
.. rest_method:: PUT /servers/{server_id}/os-volume_attachments/{volume_id}
Update a volume attachment.
Note
This action only valid when the server is in ACTIVE, PAUSED and RESIZED state, or a conflict(409) error will be returned.
Warning
When updating volumeId, this API is typically meant to
only be used as part of a larger orchestrated volume
migration operation initiated in the block storage
service via the os-retype
or os-migrate_volume
volume actions. Direct usage of this API to update
volumeId is not recommended and may result in needing to
hard reboot the server to update details within the guest
such as block storage serial IDs. Furthermore, updating
volumeId via this API is only implemented by certain
compute drivers.
Policy default role is 'rule:system_admin_or_owner', its scope is
[system, project], which allow project members or system admins to
change the fields of an attached volume of a server. Policy defaults
enable only users with the administrative role to change volumeId
via this operation. Cloud providers can change these permissions
through the policy.json
file.
Updating, or what is commonly referred to as "swapping", volume attachments with volumes that have more than one read/write attachment, is not supported.
Normal response codes: 202
Error response codes: badRequest(400), unauthorized(401), forbidden(403), itemNotFound(404), conflict(409)
.. rest_parameters:: parameters.yaml - server_id: server_id_path - volume_id: volume_id_swap_src - volumeAttachment: volumeAttachment_put - volumeId: volumeId_swap - delete_on_termination: delete_on_termination_put_req - device: attachment_device_put_req - serverId: attachment_server_id_put_req - tag: device_tag_bdm_attachment_put_req - id: attachment_id_put_req
Note
Other than volumeId
, as of v2.85 only
delete_on_termination
may be changed from the current
value.
Example Update a volume attachment (v2.85): JSON request
.. literalinclude:: ../../doc/api_samples/os-volumes/v2.85/update-volume-attachment-delete-flag-req.json :language: javascript
No body is returned on successful request.
.. rest_method:: DELETE /servers/{server_id}/os-volume_attachments/{volume_id}
Detach a volume from an instance.
Normal response codes: 202
Error response codes: badRequest(400), unauthorized(401), forbidden(403), itemNotFound(404), conflict(409)
Note
From v2.20 detach a volume from an instance in SHELVED or SHELVED_OFFLOADED state is allowed.
Note
This is an asynchronous API, callers should poll the list
of volume attachments provided by GET
/servers/{server_id}/os-volume_attachments
to determine when the
detachment of the volume has completed successfully.
.. rest_parameters:: parameters.yaml - server_id: server_id_path - volume_id: volume_id_to_detach_path
No body is returned on successful request.