[MESOS-4796] Debug ability enhancement for unified container

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.28.0
• Epic Link: Unified Container
• Assignee: Guangya Liu
• Reporter: Guangya Liu
• Shepherd: Jie Yu
• Created: 28/Feb/16 04:39
• Updated: 02/Mar/16 08:35
• Resolved: 01/Mar/16 23:25

Description

The following are some start point for what I want to do for this after some discussion with Jie Yu, there will be more enhancement later.

docker/local_puller:
LocalPullerProcess::extractLayer: add some detail for how to extract
LocalPullerProcess::pull: Message needs to be updated to add image info the log info

docker/puller.cpp:
Puller::create: Clarify which puller is using: local or registry

docker/registery_puller.cpp
RegistryPullerProcess::pull: Clarify which image is going to be pulled
RegistryPullerProcess::__pull: Add some detail for roots,layerPath, tarpath, Json etc when creat layer path.
RegistryPullerProcess::fetchBlobs: The log message needs to be updated for reference: stringify(reference)

backends/bind.cpp:
BindBackendProcess::provision: Add more detail for provision, such as mount point etc.
BindBackendProcess::destroy: Add which roots is destroying.

backends/copy.cpp:
CopyBackendProcess::destroy: Add which roots is destroying.
CopyBackendProcess::provision: Add more detail for provision info, such as rootfs etc.

mesos/isolators/docker/runtime.cpp
add some logs to clarify some detail for DockerRuntimeIsolatorProcess::prepare for how does the docker run time isolator is prepared.