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Re: [libvirt] Remotable Libvirt



On Wed, May 31, 2017 at 04:02:42PM +0100, Daniel P. Berrange wrote:
> On Wed, May 31, 2017 at 03:59:10PM +0100, Richard W.M. Jones wrote:
> > On Thu, May 25, 2017 at 10:26:47AM -0700, Peter wrote:
> > > The majority of cockpit is implemented in
> > > javascript.
> > 
> > How about using the gobject libvirt bindings?
> > 
> >   https://libvirt.org/git/?p=libvirt-glib.git;a=summary
> > 
> > They should be usable from Javascript directly, as in the .js example
> > here:
> > 
> >   https://libvirt.org/git/?p=libvirt-glib.git;a=tree;f=examples;h=d63d5964be2299b62140f9fd183b5cc744837d8a;hb=HEAD
> 
> They're usable from a standalone javascript interpretor, but there's no
> way to use them from a client side javascript interpretor in the user's
> web browser.

Hmm OK, I thought "implemented in javascript" meant they were using
server-side Javascript.

I see that cockpit runs two processes on the server (cockpit-ws and
ssh-agent).

I had a look at one of the modules in the source (pkg/systemd).  It's
running local commands (eg. "grep"), and issuing dbus calls which
AFAIK cannot be issued over the network.

Can Peter explain a bit more about the architecture of Cockpit?
Where does the Javascript run?  What JS engine runs it?

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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