[MESOS-9321] Add an optional `vendor` field in `Resource.DiskInfo.Source`.

• Type: Improvement
• Status: Resolved
• Priority: Critical
• Resolution: Done
• Fix Version/s: 1.7.1, 1.8.0
• Component/s: resource provider, storage
• Labels: mesosphere storage
• Epic Link: Resource Provider and CSI Tech Debt
• Sprint: Mesosphere RI-6 Sprint 2018-31, Storage R8 Sprint 35
• Story Points: 5
• Assignee: Chun-Hung Hsiao
• Reporter: Chun-Hung Hsiao
• Shepherd: Benjamin Bannier
• Created: 16/Oct/18 04:40
• Updated: 14/Dec/18 02:07
• Resolved: 14/Dec/18 02:07

Description

This will allow the framework to recover volumes reported by the corresponding CSI plugin across agent ID changes.

When an agent changes its ID, all reservation information related to resources coming from a given resource provider will be lost, so frameworks needs an unique identifier to identify if a new volume associated with the new agent ID is the same volume. Since CSI volume ID are not unique across different plugins, we will need to add a new vendor field, which together with the existing id field can provide the means to globally uniquely identify this source.