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[Hua Zhang <joshua.zhang@xxxxxxxxxxxxx>]

Public bug reported:

qemu supports that password based authentication is used for client connections by adding password option for -vnc as below [1]. 
-vnc 0.0.0.0:1,password -k en-us 
qemu xml configuration file provides a VNC password in clear text. 
<graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.5' passwd='YOUR-PASSWORD-HERE' keymap='en-us'/> 

but openstack doesn't support to configure vpn password, see the following codes: 
if ((CONF.vnc_enabled and 
virt_type not in ('lxc', 'uml'))): 
graphics = vconfig.LibvirtConfigGuestGraphics() 
graphics.type = "vnc" 
graphics.keymap = CONF.vnc_keymap 
graphics.listen = CONF.vncserver_listen 
guest.add_device(graphics) 
add_video_driver = True 


[1], http://www.cyberciti.biz/faq/linux-kvm-vnc-for-guest-machine/

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1450294

Title:
  Enable password support for vnc session

Status in OpenStack Compute (Nova):
  New

Bug description:
  qemu supports that password based authentication is used for client connections by adding password option for -vnc as below [1]. 
  -vnc 0.0.0.0:1,password -k en-us 
  qemu xml configuration file provides a VNC password in clear text. 
  <graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.5' passwd='YOUR-PASSWORD-HERE' keymap='en-us'/> 

  but openstack doesn't support to configure vpn password, see the following codes: 
  if ((CONF.vnc_enabled and 
  virt_type not in ('lxc', 'uml'))): 
  graphics = vconfig.LibvirtConfigGuestGraphics() 
  graphics.type = "vnc" 
  graphics.keymap = CONF.vnc_keymap 
  graphics.listen = CONF.vncserver_listen 
  guest.add_device(graphics) 
  add_video_driver = True 

  
  [1], http://www.cyberciti.biz/faq/linux-kvm-vnc-for-guest-machine/

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