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Re: [Xen-devel] Web based front end



David

On 4 Sep 2005, at 17:37, David Isaac Wolinsky wrote:

Thanks Tom for the info, I had remembered twisted being removed but hadn't realized that XenSV had been since updated. A couple questions though...

Why not decouple the interface from Apache (as to require only python be installed)? I am not sure of the performance advantage, but it should reduce the memory requirements for dom0, allow for a slightly smaller disk (negligible), and make installation easier.

Well, I didn't want to completely re-implement a HTTP server (although I suppose its not tough) so I looked at using another one. The bit that depends on apache/mod_python is minimal, about a 20 line adapter between mod_python and what twisted used to provide. So if you wrote your own http server it would be a reasonably straight forward task to do.

I might actually do this, the dependance on apache is a pain, and I think xend has its own http server in it atm.

   Similarly have you looked into writing XenSV in C?

The primary reason I choose python is because thats what we use in cambridge, and its what all the other tools and written in ;-) Also it lets me call straight into the XendClient.py stuff, which simplifies it greatly.

Finally, is there any distributed computing tools for Xen, ie, a controller software? This is where my interest really lies, as I am working for a group that could use a tool like this and am also looking for a way to get involved.

I seem to remember somebody talking about one, I'm sure somebody else on the list will be able to respond to that. If not I'll ask about on monday.

I haven't had an oppurtunity yet to install apache, but will be doing so soon enough.

The mod_python website has all the info on getting psp up and running quickly, just three lines in a config file worked for me.

Regards,
David

Tom Wilkie wrote:


Dear David

The web based front end, XenSV, is still alive and kicking in the latest unstable. I did some work on it a few weeks ago, removed its dependancy on twisted, and made it run using mod_python, and apache. I'm planing on doing some more work on it in the coming weeks, and doing a howto for installation.

SV works by calling into the XendClient.py file, the same file xm uses to communicate with Xend. Its is written entirely in python, which probably isn't the best choice for a web app, but makes it easier to interface with xend.

Cheers

Tom

On 4 Sep 2005, at 06:38, David Isaac Wolinsky wrote:


Hello all,

I was curious if there is a web based front end (or one in the works) for xen-unstable. Last I checked, the built-in one for 2.x was being tossed out. Secondly assuming that there isn't one, would the preferred language be python? Finally, would it be better to be a front end for xm or would it be better to more tightly integrate it (or of course the mix)?

Thanks,
David

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