[Engine-devel] Network related hooks in vdsm

Mike Kolesnik mkolesni at redhat.com
Tue Oct 16 06:52:17 UTC 2012


----- Original Message -----
> On 10/10/12 16:47, Igor Lvovsky wrote:
> >   Hi everyone,
> > As you know vdsm has hooks mechanism and we already support dozen
> > of hooks for different needs.
> > Now it's a network's time.
> > We would like to get your comments regarding our proposition for
> > network related hooks.
> > 
> > In general we are planning to prepare framework for future support
> > of bunch network related hooks.
> > Some of them already proposed by Itzik Brown [1] and Dan Yasny [2].
> > 
> > Below you can find the additional hooks list that we propose:
> > 
> 
> Many of the API calls bellow are deprecated. Why do we want to add
> hooks
> before/after to deprecated APIs?

They are actually still very much in use with the REST API.

Perhaps we should address just the logical entry points instead of specific commands.
A command such as setup networks can trigger multiple logical events in which hooks can be planted (same goes for edit network in a smaller scale).

> 
> > Note: In the first stage we can implement these hooks without any
> > parameters, just to provide an entry point
> >  for simple hooks.
> > 
> > Networks manipulation:
> > - before_add_network(conf={}, customProperty={})
> > - after_add_network(conf={}, customProperty={})
> > - before_del_network(conf={}, customProperty={})
> > - after_del_network(conf={}, customProperty={})
> > - before_edit_network(conf={}, customProperty={})
> > - after_edit_network(conf={}, customProperty={})
> > - TBD
> > 
> > Bondings manipulations:
> > - before_add_bond(conf={}, customProperty={})
> > - after_add_bond(conf={}, customProperty={})
> > - before_del_bond(conf={}, customProperty={})
> > - after_del_bond(conf={}, customProperty={})
> > - before_edit_bond(conf={}, customProperty={})
> > - after_edit_bond(conf={}, customProperty={})
> > - TBD
> > 
> > General purpose:
> > - before_persist_network
> > - after_persist_network
> > 
> > 
> > Now we just need to figure out the use cases.
> > 
> > Your input more than welcome...
> > 
> > [1] http://gerrit.ovirt.org/#/c/7224/   - Adding hooks support for
> > NIC hotplug
> > [2] http://gerrit.ovirt.org/#/c/7547/   - Hook: Cisco VM-FEX
> > support
> > 
> > 
> > Regards,
> >     Igor Lvovsky
> > _______________________________________________
> > Engine-devel mailing list
> > Engine-devel at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/engine-devel
> > 
> 
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