[MESOS-6384] Support for size with create-on-demand volumes with Docker containerizer

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: docker
• Assignee: Unassigned
• Reporter: David Bosschaert
• Created: 13/Oct/16 17:33
• Updated: 24/Jul/17 19:55

Description

This issue was originally worded as marathon issue https://github.com/mesosphere/marathon/issues/4583

When specifying an external volume to be used with a docker container, the size of the external volume cannot be specified. External volumes are often created on-demand, when first used, but if no size can be specified all volumes will have the same, default size.
In the case if DVDI with REXRay, the default size is 16GB. This default can be modified but it is clearly desirable to be able to specify per-volume what the size should be.

When mesos creates the external volume on-demand, which I presume normally happens before the docker container is launched, it should allow the specification of the size of this volume.

Issue Links

• is blocked by: MESOS-7235 Improve Storage Support using Resource Provider and CSI