[Engine-devel] Adding VNC support

[Itamar Heim]

On 07/26/2012 05:36 PM, snmishra at linux.vnet.ibm.com wrote:
>
> Hi,
>
>     I am looking at adding VNC support in ovirt. What does the community
> think? Ideas, suggestions, comments?

so to sum this up:
1. there is the new dialog to open vnc manually.
http://gerrit.ovirt.org/#/c/4790/

2. Alon suggested it should be allowed to open this dialog for spice as 
well, not only for vnc.

3. Alon also suggested to have a launch button on that window (or 
parallel to it) which will try to launch vnc or spice by returning a 
specific mime type response, allowing client to choose the vnc/spice 
client to run for this mime type, and passing command line parameters to 
it in the mime type reply.

4. provide a vnc xpi/activex wrappers to allow launching it via web 
browsers like spice
main limitation of this compared to novnc is you need to do this for 
every browser/platform.

5. novnc
5.1 novnc client - i'd start with the one recently pushed to fedora.
https://bugzilla.redhat.com/show_bug.cgi?id=822187

5.2 novnc websocket server - i see three options

5.2.1 extend qemu to do this, so novnc can connect to it directly like 
we do today for vnc/spice

5.2.2 use the python based one from:
https://bugzilla.redhat.com/show_bug.cgi?id=822187

5.2.3 look at a java based websocket solution, assuming easier to deploy 
it as part of webadmin/user portal war than another service (requires a 
bit of research)
looking forward user portal and webadmin would be deployed on multiple 
hosts, so a websockets would need to be deployed next to them.

from the little i looked at, the various websocket implementations are 
mostly nascent and are not scaleable/robust/etc.
I'd love to be proven wrong, and worth playing with them a bit to 
measure that.

6. spice.html5
while very nascent - worth mentioning on this thread and trying to take 
a look:
http://www.spice-space.org/page/Html5