The cinder.volume.api Module

Handles all requests relating to volumes.

class API(db_driver=None, image_service=None)

Bases: cinder.db.base.Base

API for interacting with the volume manager.

AVAILABLE_MIGRATION_STATUS = (None, 'deleting', 'error', 'success')

accept_transfer(context, target_obj, *args, **kwargs)

attach(context, target_obj, *args, **kwargs)

begin_detaching(context, target_obj, *args, **kwargs)

check_volume_filters(filters)

Sets the user filter value to accepted format

copy_volume_to_image(context, target_obj, *args, **kwargs)

Create a new image from the specified volume.

create(context, size, name, description, snapshot=None, image_id=None, volume_type=None, metadata=None, availability_zone=None, source_volume=None, scheduler_hints=None, source_replica=None, consistencygroup=None, cgsnapshot=None, multiattach=False, source_cg=None)

create_snapshot(context, volume, name, description, metadata=None, cgsnapshot_id=None)

create_snapshot_force(context, volume, name, description, metadata=None)

create_snapshot_in_db(context, volume, name, description, force, metadata, cgsnapshot_id, commit_quota=True)

create_snapshots_in_db(context, volume_list, name, description, force, cgsnapshot_id)

delete(context, target_obj, *args, **kwargs)

delete_snapshot(context, target_obj, *args, **kwargs)

delete_snapshot_metadata(context, snapshot, key)

Delete the given metadata item from a snapshot.

delete_volume_metadata(context, target_obj, *args, **kwargs)

Delete the given metadata item from a volume.

detach(context, target_obj, *args, **kwargs)

extend(context, target_obj, *args, **kwargs)

failover_host(ctxt, host, secondary_id=None)

freeze_host(ctxt, host)

get(context, volume_id, viewable_admin_meta=False)

get_all(context, marker=None, limit=None, sort_keys=None, sort_dirs=None, filters=None, viewable_admin_meta=False, offset=None)

get_all_snapshots(context, search_opts=None, marker=None, limit=None, sort_keys=None, sort_dirs=None, offset=None)

get_list_volumes_image_metadata(context, volume_id_list)

get_snapshot(context, snapshot_id)

get_snapshot_metadata(context, snapshot)

Get all metadata associated with a snapshot.

get_snapshot_metadata_value(snapshot, key)

get_volume(context, volume_id)

get_volume_admin_metadata(context, target_obj, *args, **kwargs)

Get all administration metadata associated with a volume.

get_volume_image_metadata(context, target_obj, *args, **kwargs)

get_volume_metadata(context, target_obj, *args, **kwargs)

Get all metadata associated with a volume.

get_volumes_image_metadata(context)

initialize_connection(context, target_obj, *args, **kwargs)

list_availability_zones(enable_cache=False)

Describe the known availability zones

:retval tuple of dicts, each with a ‘name’ and ‘available’ key

manage_existing(context, host, ref, name=None, description=None, volume_type=None, metadata=None, availability_zone=None, bootable=False)

manage_existing_snapshot(context, ref, volume, name=None, description=None, metadata=None)

migrate_volume(context, target_obj, *args, **kwargs)

Migrate the volume to the specified host.

migrate_volume_completion(context, target_obj, *args, **kwargs)

reserve_volume(context, target_obj, *args, **kwargs)

retype(context, target_obj, *args, **kwargs)

Attempt to modify the type associated with an existing volume.

roll_detaching(context, target_obj, *args, **kwargs)

terminate_connection(context, target_obj, *args, **kwargs)

thaw_host(ctxt, host)

unreserve_volume(context, target_obj, *args, **kwargs)

update(context, target_obj, *args, **kwargs)

update_readonly_flag(context, target_obj, *args, **kwargs)

update_snapshot(context, target_obj, *args, **kwargs)

update_snapshot_metadata(context, snapshot, metadata, delete=False)

Updates or creates snapshot metadata.

If delete is True, metadata items that are not specified in the metadata argument will be deleted.

update_volume_admin_metadata(context, target_obj, *args, **kwargs)

Updates or creates volume administration metadata.

If delete is True, metadata items that are not specified in the metadata argument will be deleted.

update_volume_metadata(context, target_obj, *args, **kwargs)

Updates or creates volume metadata.

If delete is True, metadata items that are not specified in the metadata argument will be deleted.

class HostAPI

Bases: cinder.db.base.Base

get_host_uptime(context, host)

Returns the result of calling “uptime” on the target host.

host_power_action(context, host, action)

set_host_enabled(context, host, enabled)

Sets the specified host’s ability to accept new volumes.

set_host_maintenance(context, host, mode)

Start/Stop host maintenance window.

On start, it triggers volume evacuation.

check_policy(context, action, target_obj=None)

wrap_check_policy(func)

Check policy corresponding to the wrapped methods prior to execution

This decorator requires the first 3 args of the wrapped function to be (self, context, volume)