The cinder.scheduler.flows.create_volume Module

The cinder.scheduler.flows.create_volume Module

class ExtractSchedulerSpecTask(**kwargs)

Bases: cinder.flow_utils.CinderTask

Extracts a spec object from a partial and/or incomplete request spec.

Reversion strategy: N/A

default_provides = set(['request_spec'])
execute(context, request_spec, volume, snapshot_id, image_id, backup_id)
class ScheduleCreateVolumeTask(driver_api, **kwargs)

Bases: cinder.flow_utils.CinderTask

Activates a scheduler driver and handles any subsequent failures.

Notification strategy: on failure the scheduler rpc notifier will be activated and a notification will be emitted indicating what errored, the reason, and the request (and misc. other data) that caused the error to be triggered.

Reversion strategy: N/A

FAILURE_TOPIC = 'scheduler.create_volume'
execute(context, request_spec, filter_properties, volume)
get_flow(context, driver_api, request_spec=None, filter_properties=None, volume=None, snapshot_id=None, image_id=None, backup_id=None)

Constructs and returns the scheduler entrypoint flow.

This flow will do the following:

  1. Inject keys & values for dependent tasks.
  2. Extract a scheduler specification from the provided inputs.
  3. Use provided scheduler driver to select host and pass volume creation request further.
Creative Commons Attribution 3.0 License

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.