Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/20566

Log:
commit 8e062614219448c4445ba27b2082d62563077b98
Author: Belmiro Moreira <moreira.belmiro.email.lists at gmail.com>
Date:   Sun Jan 27 18:32:47 2013 +0100

    Multi-tenancy isolation with aggregates
    
    A new scheduler filter that allows the creation of instances from
    specific tenants in selected aggregates.
    With this filter is possible to isolate tenants in a specific set
    of compute nodes (aggregates).
    
    If a host is in an aggregate that has the metadata key
    "filter_tenant_id" it can only create instances from that tenant(s).
    A host can be in different aggregates.
    If a host doesn't belong to an aggregate with the metadata key
    "filter_tenant_id" it can create instances from all tenants.
    
    Implements: blueprint multi-tenancy-aggregates
    DocImpact
    
    Change-Id: I6ff2f0e1a110aed706015574d3dc9125f96a1871