[MESOS-2968] Implement shared copy based provisioner backend

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: containerization
• Labels: mesosphere
• Epic Link: Unified Container
• Sprint: Mesosphere Sprint 17, Mesosphere Sprint 18
• Story Points: 3
• Assignee: Timothy Chen
• Reporter: Timothy Chen
• Created: 01/Jul/15 00:27
• Updated: 26/Nov/18 12:22
• Resolved: 26/Nov/18 12:22

Description

Currently Appc and Docker both implemented its own copy backend, but most of the logic is the same where the input is just a image name with its dependencies.
We can refactor both so that we just have one implementation that is shared between both provisioners, so appc and docker can reuse the shared copy backend.