[YARN-4595] Add support for configurable read-only mounts when launching Docker containers

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: yarn
• Labels: Docker
• Assignee: Billie Rinaldi
• Reporter: Billie Rinaldi
• Created: 14/Jan/16 22:36
• Updated: 02/May/18 22:34
• Resolved: 05/May/16 07:35

Description

Mounting files or directories from the host is one way of passing configuration and other information into a docker container. We could allow the user to set a list of mounts in the environment of ContainerLaunchContext (e.g. /dir1:/targetdir1,/dir2:/targetdir2). These would be mounted read-only to the specified target locations.

Due to permissions and user concerns, for this ticket we will require the mounts to be resources that are in the distributed cache.