[openstack-dev] [Openstack-operators] [Neutron] Allowing DNS suffix to be set per subnet (at least per tenant)

Daniel Comnea comnea.dani at gmail.com
Fri Sep 4 06:14:31 UTC 2015


Kevin,

am i right in saying that the merge above was packaged into Liberty ?

Any chance to be ported to Juno?


Cheers,
Dani



On Fri, Sep 4, 2015 at 12:21 AM, Kevin Benton <blak111 at gmail.com> wrote:

> Support for that blueprint already merged[1] so it's a little late to
> change it to per-subnet. If that is too fine-grained for your use-case, I
> would file an RFE bug[2] to allow it to be set at the subnet level.
>
>
> 1. https://review.openstack.org/#/c/200952/
> 2.
> http://docs.openstack.org/developer/neutron/policies/blueprints.html#rfe-submission-guidelines
>
> On Thu, Sep 3, 2015 at 1:07 PM, Maish Saidel-Keesing <maishsk at maishsk.com>
> wrote:
>
>> On 09/03/15 20:51, Gal Sagie wrote:
>>
>> I am not sure if this address what you need specifically, but it would be
>> worth checking these
>> two approved liberty specs:
>>
>> 1)
>> https://github.com/openstack/neutron-specs/blob/master/specs/liberty/internal-dns-resolution.rst
>> 2)
>> https://github.com/openstack/neutron-specs/blob/master/specs/liberty/external-dns-resolution.rst
>>
>> Thanks Gal,
>>
>> So I see that from the bp [1] the fqdn will be configurable for each and
>> every port ?
>>
>> I think that this does open up a number of interesting possibilities, but
>> I would also think that it would be sufficient to do this on a subnet level?
>>
>> We do already have the option of setting nameservers per subnet - I
>> assume the data model is already implemented - which is interesting  -
>> because I don't see that as part of the information that is sent by dnsmasq
>> so it must be coming from neutron somewhere.
>>
>> The domain suffix - definitely is handled by dnsmasq.
>>
>>
>>
>> On Thu, Sep 3, 2015 at 8:37 PM, Steve Wormley <openstack at wormley.com>
>> wrote:
>>
>>> As far as I am aware it is not presently built-in to Openstack. You'll
>>> need to add a dnsmasq_config_file option to your dhcp agent configurations
>>> and then populate the file with:
>>> domain=DOMAIN_NAME,CIDR for each network
>>> i.e.
>>> domain=example.com,10.11.22.0/24
>>> ...
>>>
>>> -Steve
>>>
>>>
>>> On Thu, Sep 3, 2015 at 1:04 AM, Maish Saidel-Keesing <
>>> <maishsk at maishsk.com>maishsk at maishsk.com> wrote:
>>>
>>>> Hello all (cross-posting to openstack-operators as well)
>>>>
>>>> Today the setting of the dns suffix that is provided to the instance is
>>>> passed through dhcp_agent.
>>>>
>>>> There is the option of setting different DNS servers per subnet (and
>>>> and therefore tenant) but the domain suffix is something that stays the
>>>> same throughout the whole system is the domain suffix.
>>>>
>>>> I see that this is not a current neutron feature.
>>>>
>>>> Is this on the roadmap? Are there ways to achieve this today? If so I
>>>> would be very interested in hearing how.
>>>>
>>>> Thanks
>>>> --
>>>> Best Regards,
>>>> Maish Saidel-Keesing
>>>>
>>>>
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>>>
>>>
>>>
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>>
>>
>> --
>> Best Regards ,
>>
>> The G.
>>
>>
>> --
>> Best Regards,
>> Maish Saidel-Keesing
>>
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>>
>
>
> --
> Kevin Benton
>
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