cinder/api-ref/source/v2/volumes-v2-volumes-actions.inc
Matt Riedemann 622a0ff424 api-ref: clarify retype docs around default policy permissions
Cinder's default policy allows the owner of a volume to initiate
a retype, even if they aren't an admin. However, if the volume
is going to be migrated during the retype operation, then Cinder
is going to call the Nova swap volume API, which by default is
admin-only. So if a non-admin user tries to retype and migrate
their volume, which is attached to a server instance, then it's
going to fail with a 403 error from Nova.

En lieu of a more complete solution, like Cinder using an
elevated service token to call Nova, this change just attempts
to document the restriction in the API reference.

Change-Id: I6282a6d319beead979780a33880947987906c2f3
Related-Bug: #1698224
2017-06-15 18:19:46 -04:00

407 lines
7.6 KiB
ReStructuredText

.. -*- rst -*-
Volume actions (volumes, action)
================================
Extends the size of, resets statuses for, sets image metadata for,
and removes image metadata from a volume. Attaches a volume to a
server, detaches a volume from a server, and removes a volume from
Block Storage management without actually removing the back-end
storage object associated with it.
Extend volume size
~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Extends the size of a volume to a requested size, in gibibytes (GiB). Specify the ``os-extend`` action in the request body.
Preconditions
- Volume status must be ``available``.
- Sufficient amount of storage must exist to extend the volume.
- The user quota must have sufficient volume storage.
Troubleshooting
- An ``error_extending`` volume status indicates that the request
failed. Ensure that you meet the preconditions and retry the
request. If the request fails again, investigate the storage back
end.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- os-extend: os-extend
- new_size: new_size
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-extend-request.json
:language: javascript
Reset volume statuses
~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Administrator only. Resets the status, attach status, and migration status for a volume. Specify the ``os-reset_status`` action in the request body.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- status: status_3
- migration_status: migration_status
- os-reset_status: os-reset_status
- attach_status: attach_status
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-status-reset-request.json
:language: javascript
Set image metadata for volume
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Sets the image metadata for a volume. Specify the ``os-set_image_metadata`` action in the request body.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- os-set_image_metadata: os-set_image_metadata
- metadata: metadata
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-image-metadata-set-request.json
:language: javascript
Remove image metadata from volume
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Removes image metadata, by key, from a volume. Specify the ``os-unset_image_metadata`` action in the request body and the ``key`` for the metadata key and value pair that you want to remove.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- os-unset_image_metadata: os-unset_image_metadata
- key: key
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-image-metadata-unset-request.json
:language: javascript
Attach volume to server
~~~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Attaches a volume to a server. Specify the ``os-attach`` action in the request body.
Preconditions
- Volume status must be ``available``.
- You should set ``instance_uuid`` or ``host_name``.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- instance_uuid: instance_uuid
- mountpoint: mountpoint
- host_name: host_name
- os-attach: os-attach
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-attach-request.json
:language: javascript
Detach volume from a server
~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Detaches a volume from a server. Specify the ``os-detach`` action in the request body.
Preconditions
- Volume status must be ``in-use``.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- attachment_id: attachment_id
- os-detach: os-detach
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-detach-request.json
:language: javascript
Unmanage volume
~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Removes a volume from Block Storage management without removing the back-end storage object that is associated with it. Specify the ``os-unmanage`` action in the request body.
Preconditions
- Volume status must be ``available``.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- os-unmanage: os-unmanage
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-unmanage-request.json
:language: javascript
Force detach volume
~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Forces a volume to detach. Specify the ``os-force_detach`` action in the request body.
Rolls back an unsuccessful detach operation after you disconnect
the volume.
Normal response codes: 202,
Request
-------
.. rest_parameters:: parameters.yaml
- connector: connector
- attachment_id: attachment_id
- os-force_detach: os-force_detach
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-force-detach-request.json
:language: javascript
Retype volume
~~~~~~~~~~~~~
.. rest_method:: POST /v2/{project_id}/volumes/{volume_id}/action
Change type of existing volume. Specify the ``os-retype`` action in the request body.
Change the volume type of existing volume, Cinder may migrate the volume to
proper volume host according to the new volume type.
Policy defaults enable only users with the administrative role or the owner of
the volume to perform this operation. Cloud providers can change these
permissions through the policy.json file.
Normal response codes: 202
Request
-------
.. rest_parameters:: parameters.yaml
- new_type: new_type
- migration_policy: migration_policy
- os-retype: os-retype
- volume_id: volume_id_path
- project_id: project_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-os-retype-request.json
:language: javascript
Force delete volume
~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Attempts force-delete of volume, regardless of state. Specify the ``os-force_delete`` action
in the request body.
Normal response codes: 202
Request
-------
.. rest_parameters:: parameters.yaml
- os-force_delete: os-force_delete
- tenant_id: tenant_id
- volume_id: volume_id_path
Request Example
---------------
.. literalinclude:: ./samples/volume-force-delete-request.json
:language: javascript
Update volume bootable status
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. rest_method:: POST /v2/{tenant_id}/volumes/{volume_id}/action
Update the bootable status for a volume, mark it as a bootable volume. Specify the ``os-set_bootable`` action in the request body.
Normal response codes: 200
Request
-------
.. rest_parameters:: parameters.yaml
- tenant_id: tenant_id
- volume_id: volume_id_path
- os-set_bootable: os-set_bootable
- bootable: bootable
Request Example
---------------
.. literalinclude:: ./samples/volume-bootable-status-update-request.json
:language: javascript