Refactor code for create snapshot using TaskFlow 0.1.1

Registered by haruka tanizawa

Refactor the create_snapshot code to use Taskflow (https://wiki.openstack.org/wiki/TaskFlow).
Split create_snapshot code into tasks that perform the individual required actions to accomplish the pieces desired outcome.

Blueprint information

Status:
Complete
Approver:
None
Priority:
Undefined
Drafter:
haruka tanizawa
Direction:
Needs approval
Assignee:
Stanislav Kudriashev
Definition:
Obsolete
Series goal:
None
Implementation:
Unknown
Milestone target:
None
Completed by
Sean McGinnis

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(smcginnis): Marking obsolete as this has been sitting out there for a long time. If this is still needed, please submit a new bp.

I found this https://review.openstack.org/#/c/55134/ .

(?)

Work Items

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