openstack team mailing list archive

[Jian Hua Geng <gengjh@xxxxxxxxxx>]

Vish,

Many thanks for u comments, but as you know to support windows sysprep
image, we need save the unattend.xml in the CDROM or C:\ device. So, we
want to extend the config drive to attach a CDROM device when launch VM.

Anyway, I think attach a CDROM when launch new VM is a common requirement,
right?

--------------------------------------------------
Best regard,
David Geng
--------------------------------------------------


                                                                       
             Vishvananda                                               
             Ishaya                                                    
             <vishvananda@gmai                                          To
             l.com>                    Jian Hua Geng/China/IBM@IBMCN,  
                                                                        cc
             12/04/2012 06:32          openstack@xxxxxxxxxxxxxxxxxxx   
             AM                                                    Subject
                                       Re: [Openstack] [openstack]     
                                       config_drive <Image UUID> doesn't
                                       create disk.config              
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       





On Dec 2, 2012, at 6:15 PM, Jian Hua Geng <gengjh@xxxxxxxxxx> wrote:



      I saw the comments in the
      https://bugs.launchpad.net/nova/+bug/1029647 , can anyone give me
      more detail introduction of this decision about why the functionality
      for using an image id for config drive was removed?

      Just for example for our requirement: We want create a CDROM and
      write some information in it such as the sysprep info for windows
      when run vm.
      First we need extend the config drive to support both cdrom and file
      disk device, second we create an iso image in glance which is used to
      save the sysprep info and share with other user in cloud, then wen
      can use this config_drive_id to load the iso.
      Have any suggestion or solution for this requirement?


Here is one option that you could use. Create a volume instead of an image
(or create the volume from the image), snapshot the volume. If you pass the
volume snapshot in as a secondary drive in block_device_mapping on boot,
then you will get a volume copy of the image. If it is
delete_on_terminate=True then the volume will be deleted when you terminate
the vm.

Vish