Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/27824

Log:
commit 1ecd7133ffefabc3779594ab9484aca2635733c3
Author: Devananda van der Veen <devananda.vdv at gmail.com>
Date:   Mon Apr 29 18:55:38 2013 -0700

    Add force_nodes to filter properties
    
    Add support for "force_nodes" to filter properties, following the example
    of force_hosts. In doing so, fix an issue where the presence of either
    force_hosts or ignore_hosts would have squashed a host with multiple nodes.
    
    A node can be passed in via the --availability_zone
    option, separated from the hostname with a colon. Eg,
      nova boot --availability_zone=zone:host:node
    Note that "host" is optional here, and "zone::node" also works.
    
    DocImpact
    
    Implements bp baremetal-force-node
    
    Change-Id: Icfee63c80eb355c29594f8badde4183496b395ac