Nate Cole created AMBARI-15636:
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             Summary: Use a new concept called a Version Definition File (VDF) 
to support installation
                 Key: AMBARI-15636
                 URL: https://issues.apache.org/jira/browse/AMBARI-15636
             Project: Ambari
          Issue Type: Epic
          Components: ambari-server
            Reporter: Nate Cole
            Assignee: Nate Cole
            Priority: Critical
             Fix For: 2.4.0


Use a new concept to install and add repositories:  The Version Definition File 
(VDF).  The VDF is used to explicitly state what is available in a 
release/repository.

It is desirable to know exactly what is being installed using Ambari.  The 
amount of repository management systems (yum/rpm, zypper/rpm, apt-get etc) make 
it infeasible to allow Ambari to know what is in them.  It is up to 
distributions to provide information regarding a release in a friendly manner.

VDF processing includes defining the release, versions that are available.  
This file is to be written in XML and validated using XSD.



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