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On Tue, Oct 24, 2017 at 1:58 PM, Matthew Czajka <mattczajka at gmail.com> wrote:
> Oh hey there Curtis!
>
>> Basically I expect there is no dhcp service. Double check the network has
>> dhcp?
>
> There's DHCP running on the net nodes, but the dhcp logs don't show any
> errors or warnings

Sorry I missed this...

But is the provider network setup to provide dhcp? If it's not
supposed to, then what we will often do is give an instance two
networks, one for "management" that can use the metadata system and
one that is on the provider network which may not have dhcp support
from openstack.


Thanks,
Curtis.

>
> In the DHCP logs, the only difference I can see is when booting from
> provider it says its building the host file in /var/lib/neutron/dhcp/ while
> booting from a self-service network, it says building in /var/lib/neutron/.
>
> I have enable_isolated_metadata = True in the dhcp config.  But I noticed
> that the dnsmasq logs dont show a DHCPDISCOVER or OFFER for the provider IP
> I try to boot with. It shows for a self-service network.
>
>> You could test with a config drive if you wanted to verify, or don't want
>> dhcp service.
>
> I don't want to use config drive since ceph is the backend, it might mess up
> instance migrations I believe?
>
> Thanks,
> Matt
>
>
> On Fri, Oct 20, 2017 at 2:09 PM, Curtis <serverascode at gmail.com> wrote:
>>
>> On Thu, Oct 19, 2017 at 5:22 PM, Matthew Czajka <mattczajka at gmail.com>
>> wrote:
>> > Hi All,
>> >
>> >
>> >
>> > I’m running into an issue with a new Ocata deployment. I’m unable to
>> > boot an
>> > instance directly from the provider network. Instance logs show that it
>> > keeps repeating “failed to raise interfaces” so it doesn’t get an IP
>> > assigned, and then can’t reach the metatdata servers.
>> >
>> >
>> >
>> > Booting an instance from a self-service network works fine, can ping
>> > other
>> > internal IPs within the vlan, and can assign and use a floating IP.
>> >
>> >
>> >
>> > Deployment is running linux bridge, with a flat network for provider. 3
>> > controllers, 3 network nodes, and 2 compute nodes. Using dhcpdump I can
>> > see
>> > DHCP requests being made, but no acknowledgement afterwards. If I
>> > console
>> > into the server and assign the public IP statically, that IP then works.
>> > It’s only at boot (or reboot), that the instance can’t grab the IP.
>> >
>> >
>> >
>> > Any help would be appreciated, I’ve been banging my head over this for a
>> > while.
>>
>> Hey Matt :),
>>
>> To get metadata there has to be a dhcp server or router configured, or
>> use config drive. Presumably there is no dhcp service running via
>> neutron in your situation, so it can't get an IP nor the metadata
>> route injected. You could test with a config drive if you wanted to
>> verify, or don't want dhcp service. Sometimes organizations refuse
>> dhcp services on networks, but I'm guessing that is not the case in
>> this situation.
>>
>> Basically I expect there is no dhcp service. Double check the network has
>> dhcp?
>>
>> Thanks,
>> Curtis.
>>
>> >
>> >
>> >
>> > Thanks,
>> >
>> > Matt C
>> >
>> >
>> > _______________________________________________
>> > OpenStack-operators mailing list
>> > OpenStack-operators at lists.openstack.org
>> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>> >
>>
>>
>>
>> --
>> Blog: serverascode.com
>
>



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Blog: serverascode.com