Open Stack

Hi, I'd like you to take a look at this patch for potential
DocImpact.
https://review.openstack.org/18469

Log:
commit 8f604a5891230a05f597113cfa62631f7e761763
Author: genggjh <genggjh at hotmail.com>
Date:   Wed Jan 9 16:20:36 2013 +0800

    Add support for attach CD-ROM when run new VM
    
    Extend block_device_mapping to support attach CD-ROM device with an
    image.
    Here is an example for how to use this enhancement:
    nova boot --image $(glance index | grep RHEL6.3 | awk '{print $1}')
    --flavor 1 --block_device_mapping
    cdrom1=a650060c-09f9-44b4-9eec-196d36a3b7ea:image mytest-1
    
    blueprint attach-cdrom-when-run-system
    
    DocImpact
    Add new attribute in nova.conf to limit the image size that can be
    attached and new type of block device mapping when boot new vm.
    
    Change-Id: I6d0627c172ebe848314747195f69df4cf4b417ce