jkilpatr 707b8fd43c Improved containers detection for metadata
So after trying my own method I've found rooks to be
superior, this commit takes a more careful look at
what docker on the overcloud is running and handles
the three possible cases, containers, docker installed
but not containerized, and no docker installed at all.`

Change-Id: I1bb5de82654a23f79e381705c63176580b170c91
2017-07-06 17:39:08 +00:00
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