[MESOS-9620] Add metrics for volume gid manager

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Done
• Fix Version/s: 1.8.0
• Labels: containerization
• Epic Link: Volume ownership and permission improvements
• Sprint: Containerization RI11 Sp 41
• Story Points: 3
• Assignee: Qian Zhang
• Reporter: Qian Zhang
• Shepherd: Gilbert Song
• Created: 01/Mar/19 07:37
• Updated: 08/Mar/19 00:51
• Resolved: 08/Mar/19 00:46

Description

We need to add some metrics for volume gid manager, e.g., total number of gids configured for volume gid manager and the number of the free gids available to volume gid manager, and add the new metrics into this doc.