zhaoxinyu d5c2d5eedb Add looking for env variables to overwrite hardcoded values
Also add timeout for checking installation status

To be suitable for jenkins test. The PRESET_VALUES can all be set to
compass IP. Also set mac address to the pxe vm in jenkins slaves.
Currently we only test os-dashboard role to save time.

Change-Id: I6194f62f21887af173c5c318577c4eb86de0eabf
2014-02-15 00:49:56 +00:00
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