[Engine-devel] Network related hooks in vdsm

[Simon Grinberg]

----- Original Message -----
> From: "Igor Lvovsky" <ilvovsky at redhat.com>
> To: "vdsm-devel" <vdsm-devel at lists.fedorahosted.org>, "engine-devel" <engine-devel at ovirt.org>
> Cc: "Dan Yasny" <dyasny at redhat.com>
> Sent: Wednesday, October 10, 2012 4:47:28 PM
> Subject: [Engine-devel] Network related hooks in vdsm
> 
> 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:
> 
> 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

+ VM networking related points in addition to before/after vm start/stop
before_hotplug_nic(conf={}, customProperty={})
*after_hotplug_nic(conf={}, customProperty={})
before_hotunplug_nic(conf={}, customProperty={})
*after_hotunplug_nic(conf={}, customProperty={})

* Not sure about use case for those two 

The above will require VM IDs and networks? Sorry that I did not look into the actual implementation of the above naming is more of a guess work, but I think the meaning is clear. There may be other VM networking related entry points I've missed. 

> 
> 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
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