[vdsm] Future of Vdsm network configuration

Dan Kenigsberg danken at redhat.com
Sat Nov 17 13:48:00 UTC 2012


On Wed, Nov 14, 2012 at 10:54:34AM -0500, Saggi Mizrahi wrote:
> I'm late to the party as usual...
> 
> I'm all for dynamic set up of hosts, I think it's the only way to go. I don't understand how it can work anyway else.

I did not expect the thread to go this way, but I agree that network
setup is an exception: for storage and virtual machines, we do not
persist anything on the node.

For networking we need to persist only the management connection.
Everything else can be volatile, created by the client after the node
boots.

> 
> That being said, if everything is set up dynamically it doesn't matter what backend we use to set it up as long as we can query the state.
> We can even mix and match. Or am I missing something.

Choosing a backend is important, as all implementations are. We have the
setupNetwork API. We could change its semantics to mean "do not
persist". Now is the time to consider implementations, too.

Dan.


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