You cannot have an external dhcp server with openstack. Openstack needs a way to know the ip address assigned to a vm to do its listing properly. If you don't care about the api returning valid ips there is a possibility of using FlatNetworking (not FlatDHCP) to make nova stick the network into a bridge and not do any dhcp at all. You could then have an external server serving up dhcp ips. I suspect you will probably have to disable security groups completely using NoopFirewallDriver driver to get this to work.
As to the reason dhcp-host is not working, I suspect is because we give dnsmasq an external hosts file so you probably would need the host directive there. Vish On Feb 19, 2013, at 4:44 AM, Ritesh Nanda <[email protected]> wrote: > Hope Vish can answer this , what can be the way around to do this. > > On Tue, Feb 19, 2013 at 2:01 PM, Razique Mahroua <[email protected]> > wrote: > Hi, > I'm not sure the "dhcp-host" configuration option exists actually. As for > having one another host in VLAN mode is something I'd be interested to know > as well > > Regards, > > Razique Mahroua - Nuage & Co > [email protected] > Tel : +33 9 72 37 94 15 > > <NUAGECO-LOGO-Fblan_petit.jpg> > > Le 19 févr. 2013 à 08:05, Ritesh Nanda <[email protected]> a écrit : > >> Hello , >> >> Is it possible to use external dhcp server , instead of dnsmasq . >> I am using openstack essex, with vlan manager as network, I have a need >> where i need to implement dynamic dns, >> so using dhcp3 as dhcp-server and bind9 as dns is possible. >> >> Or is there any way in openstack i can implement dynamic dns in openstack. >> >> One more problem which i am facing , dnsmasq has a option to assign static >> ip to a particular hostname using dhcp-host >> parameter in dnsmasq config file. >> >> i tried it doing by defining the config file of dnsmasq in nova.conf >> >> --dnsmasq_config_file=/etc/nova/dnsmasq.conf >> >> then in dnsmasq config file >> >> i gave options for a particular subnet. >> >> >> dhcp-range=Tenant-operator,10.0.50.3,10.0.50.254,255.255.255.0,24h >> dhcp-option=Tenant-operator,6,10.0.50.7 >> domain=operator.com,10.0.50.0/24,local >> dhcp-host=importantmachine,10.0.50.120 >> >> these all options are working except dhcp-host. >> >> Can anybody help me with this. >> -- >> With Regards >> Ritesh Nanda >> >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~openstack >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~openstack >> More help : https://help.launchpad.net/ListHelp > > > > > -- > With Regards > Ritesh Nanda > > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp
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