new_contents: #!/usr/bin/env python
  
  __author__  = 'weezhard'
  __license__ = 'GPL'
  __version__ = '1.0.0'
  
  import sys
  import argparse
  import libvirt
  import subprocess
  
  parser = argparse.ArgumentParser()
  parser.add_argument('-d','--domain', help='Domain libvirt',required=True)
  parser.add_argument('-p','--pool',help='Pool ceph', required=True)
  parser.add_argument('-i','--image',help='Volume ceph', required=True)
  parser.add_argument('-t','--target',help='Device target', default='vdz')
  args = parser.parse_args()
  
  def getConnection():
    try:
      conn=libvirt.open("qemu:///system")
      return conn
    except libvirt.libvirtError, e:
      print e.get_error_message()
      sys.exit(1)
  
  def delConnection(conn):
    try:
      conn.close()
    except:
      print get_error_message()
      sys.exit(1)
  
  def getSecretUUID(conn, client):
    for secret in conn.listAllSecrets():
      username, stype = secret.usageID().split()
      if username == client: 
        uuid = secret.UUIDString()
    try:
      return uuid
    except NameError, e:
      print "Not UUID For this client name : %s." % name 
      print e
      sys.exit(1)
  
  def attach_device(dom, uuid, pool, volume, dev):
    device = """\
      <disk type='network' device='disk'>
        <driver name='qemu' type='raw'/>
        <auth username='libvirt'>
          <secret type='ceph' uuid="{uuid}"/>
        </auth>
        <source protocol='rbd' name="{pool}/{volume}">
          <host name='192.168.102.100' port='6789'/>
          <host name='192.168.102.101' port='6789'/>
          <host name='192.168.102.102' port='6789'/>
        </source>
        <target dev="{dev}" bus='virtio'/>
      </disk>
    """
    device = device.format(uuid=uuid, pool=pool, volume=volume, dev=dev)
    dom.attachDevice(device)
  
  if __name__ == '__main__':
    conn = getConnection()
    dom = conn.lookupByName(args.domain)
    attach_device( dom, getSecretUUID(conn, args.name), args.pool, args.image, args.target)
    delConnection(conn)
  
subject: Add script attach device rbd