Open Stack

Hi, I'd like you to take a look at this patch for potential
documentation impact.
https://review.openstack.org/13282

Log:
commit 7f1c136d2b643896a4648fad7198bbce501d4d0b
Author: Kravchenko Pavel <kpavel at il.ibm.com>
Date:   Wed Aug 15 00:50:49 2012 +0300

    Evacuate instanes on stable/essex
    
    First of all all credit goes to Kravchenko Pavel <kpavel at il.ibm.com> who
    is the creater of this patch. I only did some changes to it, to make it
    work on stable/essex.
    
    No need to merge this, just wanted to give this back to people who are
    maybe still working with stable/essex but require this.
    
    This is probably also not so stable, I've done basic testing. It can
    evacuate the instance on a dead host succesfully and it will
    automatically kill zombie instanes if the dead host comes alive again,
    but was still running the evacuated instance (Zombie).
    I've tested it with NFS shared storage.
    
    Original patch: https://review.openstack.org/#/c/11086/12
    Original commit message:
    This implements blueprint rebuild-for-ha
    
    Evacuation of VM from a failed host for HA.
    New api supports recreate/rebuild modes. With shared storage,
    VM is recreated on the target from disk.
    Otherwise, rebuild from original image is performed.
    
    DocImpact
    
    Change-Id: Id1ffd1e0387102865875b430851d69e205797ece
    Co-authored-by: Oshrit Feder <oshritf at il.ibm.com>