Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/18224

Log:
commit 2ba6f94d3feb58e44007db8b15accfff5bfd3ab7
Author: Kravchenko Pavel <kpavel at il.ibm.com>
Date:   Tue Dec 18 18:09:38 2012 +0200

    add to libvirt driver option to keep disks when instance destroyed
    
    Adding delete_disks flag to destroy instance method.
    In case it's false the driver keeps disks.
    
    *required for blueprint rebuild-for-ha
    
    DocImpact
    
    Change-Id: I38c7833114d8414dff831c9cc0c04c4610dbd33a
    Co-authored-by: Oshrit Feder <oshritf at il.ibm.com>