[YARN-8642] Add support for tmpfs mounts with the Docker runtime

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0, 3.1.2
• Labels: Docker
• Target Version/s: 3.2.0, 3.1.2
• Assignee: Craig Condit
• Reporter: Shane Kumpf
• Created: 09/Aug/18 17:06
• Updated: 31/Aug/18 02:43
• Resolved: 29/Aug/18 13:14

Description

Add support to the existing Docker runtime to allow the user to request tmpfs mounts for their containers. For example:

/usr/bin/docker run --name=container_name --tmpfs /run image /bootstrap/start-systemd

One use case is to allow systemd to run as PID 1 in a non-privileged container, /run is expected to be a tmpfs mount in the container for that to work.