Review Request 50259: Updated docker recovery to use abstraction provided by docker inspect.

[Rajat Phull]

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https://reviews.apache.org/r/50259/
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Review request for mesos, Benjamin Mahler, Kevin Klues, Yubo Li, and Vikrama 
Ditya.


Bugs: Mesos-5795
    https://issues.apache.org/jira/browse/Mesos-5795


Repository: mesos


Description
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Updated docker recovery to use abstraction provided by docker inspect.

Builds on top of reviewrequest #50258


Diffs
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  src/slave/containerizer/docker.hpp 43ca4317d608b3b43dd7bd0d1b55c721e7364885 
  src/slave/containerizer/docker.cpp f1ecf3b25d85597f6c3dcaa47968860ed119dbd5 

Diff: https://reviews.apache.org/r/50259/diff/


Testing
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GTEST_FILTER="NvidiaGpuDockerContainerizerTest.ROOT_DOCKER_LaunchWithGpuRecovery"
 make -j check


Thanks,

Rajat Phull