On Wed, Aug 25, 2010 at 5:31 AM, Tom Brown <[email protected]> wrote: > > I'm doing some work to get koan provisioning virtual machines in my > > environment at the moment, and am running into some trouble. > Specifically, > > I can't figure out how to actually give the virtual machine an IP > address. > > Just create a system definition that has an IP address, ie statically > configured, then when the VM is provisioned it will be so with the > correct IP. > > Or an i misunderstanding what you are trying to do? >
Nope, you've got what I'm trying to do, it's just not quite as simple as that because of the way that MAC address assignment is done. I can create a system object that has an IP address assigned but does not have a MAC address assigned. In this case, the virtualization layer (Xen or whatever) will just pick a random MAC and use that. The virtual machine is launched with the appropriate kernel options specifying a kickstart file and the like. However, when the virtual machine comes up, it does not get an IP address. This is because I don't allow open DHCP in my environment. Since cobbler does not know the MAC address of the virtual machine, `cobbler sync` does not add the VM to the dhcp configuration, and thus the VM cannot retrieve the kickstart profile. Having the virtualization layer deal with MAC address assignment turns out to be very convenient, but because of this problem does not fully work in my environment. Everything does work correctly if I assign a MAC address to the system when I create it in cobbler (as suggested by Scot and Jacob). Which is fine, except that it's an extra step, and a pain when bulk provisioning. I would prefer not to have to do anything with the assignment of MACs at all, if possible. It sounds like I'm not missing anything in terms of current capabilities, so I've gone ahead and filed an enhancement request with the behavior that I would ideally like to see (https://fedorahosted.org/cobbler/ticket/601), and I'll look at using Jacob's snippet to generate MACs for the time being. Thanks, all. - Ian
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