[Ovirt-devel] Dnsmasq on the ovirt-server

[Hugh O. Brock]

On Fri, Apr 10, 2009 at 09:48:08AM -0500, Mike McGrath wrote:
> On Fri, 10 Apr 2009, Mike McGrath wrote:
> 
> > This is probably because of my unfamiliarity with dnsmasq but right now
> > I've got a dhcp server setup to give out proper info but it's fighting
> > with the dnsmasq service on the ovirt-server.
> >
> > Can someone explain how dnsmasq fits into the ovirt stack?
> >
> 
> Ok so I've found /etc/dnsmasq.d/ and it has an ovirt dhcp server in it.  I
> assume that the intent is that when a node reboots it could come up as any
> other node?  The IP and hostname of a node would change with every reboot?
> 

This is a bug. We need to preserve the hostname/mac address mapping
and write it to the dnsmasq config as nodes come up. The only reason
we care at all is that you don't want a node to spontaneously move out
of the hardware pool it's in just because you rebooted it and it
happened to get a new DHCP lease + IP address. Anyway we need to fix it. 

Since you're doing your own DHCP you could set up your own
mac-address-to-hostname mappings and you would never have a problem.

--H