2:01 p.m.
----- Original Message -----
From: "Vojtech Szocs" <vszocs(a)redhat.com>
Sent: Friday, October 31, 2014 11:51:53 AM
Hi,
if I get this correctly, you'd like to be notified when certain event
happens (VM created/deleted/etc.) and react upon that. I see multiple
possible approaches here:
0, improve Engine extension API (refer to Alon Bar-Lev for details)
- if extensions can be packaged as JARs and these JARs could include
web fragments [1] it would mean the possibility to deploy custom
servlets onto existing Engine instance (in context of webapp that
processes extensions)
- your custom Java servlet could query REST interface (or be notified
once something happens, but AFAIK we don't have that implemented yet)
and do whatever logic is needed
- once I asked Alon about ^^ but never got response from him
- IMHO this would be a nice way to deploy custom Java code on Engine
[1] https://blogs.oracle.com/swchan/entry/servlet_3_0_web_fragment
1, improve UI plugin API
- add "VirtualMachineDataLoaded" event fired upon each refresh of
VM data in UI table (generalization -> "{Entity}DataLoaded")
- this is similar to existing "{Entity}SelectionChange" events
relying on changes in the UI table is a bad idea:
(1) potentially missing events:
the UI displays paginated data; if my VMs are sorted by name, and
I have 1000 VMs in my setup, and I just added a VM named "z", it will
be added to the last "page" which is not displayed right now, so I
wouldn't even be aware that something was added.
(2) potentially "creating" "fake" events:
changes in the displayed data in the UI can occur due to change in the
Search query; if I have 50 VMs in my setup, and I initially had the
"Vms:" search query, and now I change it to "VMs: name = a*", which
results in displaying only 10 VMs, this may falsely hint on removal
of 40 VMs from the system.
2, write UI plugin that uses oVirtJS to periodically check VM events
not sure if this is referring to VM-related events in the code (e.g.
hooking to the click on "OK" within the New VM / Remove VM dialog,
or hooking to the "Success" callback of the action response, or
something similar), or to the VM-related "Events" (i.e. the ones that
are displayed in the GUI within the Events main-tab / bottom section).
If the former: can be done, I assume, though not sure how complex it
would be to implement the infrastructure for that.
If the latter: this will "catch" actions that were performed either
via the GUI or outside the GUI; in this case, it would probably be
better to use an Engine extension API (solution "0" above) rather
than a UI plugin, since it will be more reliable, will be active
even when the GUI is not in use, etc.
The disadvantage of 1, and 2, is that WebAdmin GUI must be open.
In any case, if you'd like to explore the possibility of doing this
via UI plugin, I'm here to help.
Vojtech
----- Original Message -----
> From: "Oved Ourfali" <ovedo(a)redhat.com>
> To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> Cc: "Koen Vanoppen" <vanoppen.koen(a)gmail.com>, users(a)ovirt.org,
"Vojtech
> Szocs" <vszocs(a)redhat.com>
> Sent: Thursday, October 30, 2014 2:10:12 PM
> Subject: Re: [ovirt-users] webhook
>
> Hi
>
> CC-ing also Vojtech, the "father" of the UI plugins.
>
> Anyway, the only way to accomplish that via UI plugins at the moment is via
> adding a new "action menu item", that in the background deleted the VM,
and
> reports to Foreman.
> I would be nice to have a "hook" for different UI action items, but it
> isn't
> available at the moment.
> There are plenty code samples for UI plugins, most of them available at:
> http://www.ovirt.org/Features/UIPlugins
>
> I must say that I'm not sure webhooks are the right approach for that, as I
> guess it is relevant only in environments in which one doesn't use the
> API/CLI/SDK....
> but.. it will be a cool feature!
>
> Regards,
> Oved
>
> ----- Original Message -----
> > From: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> > To: "Koen Vanoppen" <vanoppen.koen(a)gmail.com>
> > Cc: "Oved Ourfali" <ovedo(a)redhat.com>, users(a)ovirt.org
> > Sent: Thursday, October 30, 2014 1:44:38 PM
> > Subject: Re: [ovirt-users] webhook
> >
> > Oved - can we implement something like this using ui-plugins?
> >
> >
> > ----- Original Message -----
> > > From: "Koen Vanoppen" <vanoppen.koen(a)gmail.com>
> > > To: users(a)ovirt.org
> > > Sent: Monday, October 27, 2014 4:06:40 PM
> > > Subject: [ovirt-users] webhook
> > >
> > > Hi all,
> > >
> > > Just a quick question. Is it possible to set a webhook on the removal
> > > and
> > > creation of a new vm? So we can send to foreman a delete action when
> > > the
> > > VM
> > > is deleted...
> > >
> > > Kind regards,
> > >
> > > Koen
> > >
> > > _______________________________________________
> > > Users mailing list
> > > Users(a)ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > >
> > _______________________________________________
> > Users mailing list
> > Users(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users
> >
>
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