Eugen, I think config-drive make sense when you don't have initial network in place. In my case i don't care about fixed-IP for instance. I only need to setup network using whatever IP neutron provide in that case how do i query neutron port to find out what IP address is available or neutron going to provide so i can take that information and pass to userdata. Its sounds tricky any idea how to do that?
On Thu, Aug 25, 2016 at 2:53 AM, Eugen Block <ebl...@nde.ag> wrote: > Hi, > > we've been trying to learn how to feed cloud-init with ip addresses, too. If > DHCP is disabled in your network, the instance won't get it's eth0 > configured and won't be able to query the metadata server. > Creating a port before attaching it to a booting instance also doesn't work > if no dhcp is running on that network, I just tried that to be sure. > > I've tried several ways but I only found one working option. For external > networks (or networks without dhcp) we are using config-drive now. Depending > on the OpenStack version it could be possible that you'll need > cloud-init-0.7.7, we had to fix two issues ourselves in version 0.7.6 to get > it working, one of them was a missing default route. > > With enabled config-drive the instance doesn't need a configured interface, > it's a temporarily mounted drive from where the required information is read > by cloud-init. > You can either add the option "--config-drive true" in your nova boot call > or check the checkbox in Horizon. > > To answer your question about ports, you can create a new port either in > Horizon, but there you won't be able to assign a specific ip address. If you > want a specific ip address you have to call neutron port-create (port-name > is optional): > > neutron port-create <NETWORK-ID> --fixed-ip > subnet_id=<SUBNET-ID>,ip_address=<IP> --name <PORT-NAME> > > The resulting ID of that port can be used in nova boot call: > > nova boot --flavor 2 --image <IMAGE> --nic port-id=<PORT-ID> > <INSTANCE-NAME> > > Another way to assign a specific ip address to a booting instance without > port-creation (but DHCP has to be enabled) would be: > > nova boot --flavor 2 --image <IMAGE> --nic > net-id=<NET-ID>,v4-fixed-ip=<IP> <INSTANCE-NAME> > > for example: > nova boot --flavor 2 --image dc05b777-3122-4021-b7eb-8d96fdab2980 --nic > net-id=4421e160-d675-49f2-8c29-9722aebf03b2,v4-fixed-ip=192.168.124.6 test1 > > Hope this helps! > > > Zitat von Satish Patel <satish....@gmail.com>: > > >> My question is how to query ports and pass info to cloud-init? is >> there any document or api which i can call using script and setup >> network ifcfg-eth0 file >> >> On Wed, Aug 24, 2016 at 5:38 PM, Kaustubh Kelkar >> <kaustubh.kel...@casa-systems.com> wrote: >>> >>> You can create the ports beforehand and plug them in while creating the >>> instance. As for assigning IP addresses, you can query the ports and pass >>> the information to cloud-init. I am not sure if there is any other way to do >>> this. >>> >>> Even if DHCP is disabled, OpenStack assigns IP information to ports when >>> a VM is created, and you can see this in your dashboard. The MAC and IP >>> information is used to configure iptables rules within security groups. Here >>> is the archived thread that provides this information: >>> http://lists.openstack.org/pipermail/openstack-dev/2014-December/053069.html. >>> >>> >>> -Kaustubh >>> >>>> -----Original Message----- >>>> From: Satish Patel [mailto:satish....@gmail.com] >>>> Sent: Wednesday, August 24, 2016 5:05 PM >>>> To: James Downs <e...@egon.cc> >>>> Cc: openstack <openstack@lists.openstack.org> >>>> Subject: Re: [Openstack] Guest VM IP configuration script >>>> >>>> I am using neutron networking with vlan ( its provider VLAN). We are not >>>> using >>>> DHCP but i need some kind of hack to inject IP address in instance using >>>> cloud- >>>> init. >>>> >>>> We are using cloud-init but i don't know how does it work and get IP >>>> from >>>> neutron. I am new with neutron stuff. >>>> >>>> On Wed, Aug 24, 2016 at 4:29 PM, James Downs <e...@egon.cc> wrote: >>>> > On Wed, Aug 24, 2016 at 03:25:26PM -0400, Satish Patel wrote: >>>> >> I enabled following in nova.conf on compute node but didn't work :( >>>> >> >>>> >> flat_injected=true >>>> >> >>>> >> Do i need to do anything else? >>>> > >>>> > Are you using flat networking? >>>> > Nova-networks or Neutron? >>>> > >>>> > At this point, if you're not using DHCP, your only option is to >>>> > arrange to feed >>>> the networking information into the metadata for the VM at creation >>>> time, and >>>> use someting like cloud-init to configure the networking. The ancient >>>> networking injection stuff has either been removed, or been broken for >>>> years. >>>> > >>>> > Cheers, >>>> > -j >>>> > >>>> > _______________________________________________ >>>> > Mailing list: >>>> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>> > Post to : openstack@lists.openstack.org >>>> > Unsubscribe : >>>> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>> >>>> _______________________________________________ >>>> Mailing list: >>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >>>> Post to : openstack@lists.openstack.org >>>> Unsubscribe : >>>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> >> >> _______________________________________________ >> Mailing list: >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack >> Post to : openstack@lists.openstack.org >> Unsubscribe : >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > > > > > -- > Eugen Block voice : +49-40-559 51 75 > NDE Netzdesign und -entwicklung AG fax : +49-40-559 51 77 > Postfach 61 03 15 > D-22423 Hamburg e-mail : ebl...@nde.ag > > Vorsitzende des Aufsichtsrates: Angelika Mozdzen > Sitz und Registergericht: Hamburg, HRB 90934 > Vorstand: Jens-U. Mozdzen > USt-IdNr. DE 814 013 983 > > > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack@lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack
