[MESOS-6852] Nested container's launch command is not set correctly in docker/runtime isolator.

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.1.0
• Fix Version/s: 1.1.1, 1.2.0
• Labels: runtime-isolator
• Target Version/s: 1.1.1, 1.2.0
• Epic Link: pods
• Assignee: Gilbert Song
• Reporter: Jie Yu
• Shepherd: Jie Yu
• Created: 04/Jan/17 21:44
• Updated: 11/Jan/17 20:44
• Resolved: 11/Jan/17 17:31

Description

We in-correctly append executor's command to the default entrypoint of the image:
https://github.com/apache/mesos/blob/1.1.0/src/slave/containerizer/mesos/isolators/docker/runtime.cpp#L323-L327
https://github.com/apache/mesos/blob/1.1.0/src/slave/containerizer/mesos/isolators/docker/runtime.cpp#L350-L354

This is probably due to the negligence while adding nested container support.