[MESOS-7645] Support RO mode for bind mount volumes with filesystem/linux isolator

• Type: Bug
• Status: Accepted
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.3.1, 1.4.1
• Component/s: containerization
• Assignee: Jie Yu
• Reporter: Charles Raimbert
• Shepherd: Jie Yu
• Created: 08/Jun/17 22:23
• Updated: 22/May/19 15:27

Description

The filesystem/linux isolator currently creates all bind mount volumes as RW, even if a volume mode is set as RO.

The TODO in the isolator code helps to spot the missing capability:
https://github.com/apache/mesos/blob/master/src/slave/containerizer/mesos/isolators/filesystem/linux.cpp#L587

// TODO(jieyu): Consider the mode in the volume.