[openstack-dev] [neutron] [designate] multi-tenancy in Neutron's DNS integration

Mike Spreitzer mspreitz at us.ibm.com
Wed May 11 17:40:50 UTC 2016


> On Tue, May 10, 2016 at 11:28 AM, Kevin Benton <kevin at benton.pub> wrote:
> neutron subnet-show with the UUID of the subnet they have a port on 
> will tell you.
> 
> On Tue, May 10, 2016 at 6:40 AM, Mike Spreitzer <mspreitz at us.ibm.com> 
wrote:
> "Hayes, Graham" <graham.hayes at hpe.com> wrote on 05/10/2016 09:30:26 AM:
> 
> > ...
> > > Ah, that may be what I want.  BTW, I am not planning to use Nova.  I 
am
> > > planning to use Swarm and Kubernetes to create containers attached 
to
> > > Neutron private tenant networks.  What DNS server would I configure
> > > those containers to use?
> > 
> > ...
> > 
> > The DNSMasq instance running on the neutron network would have these 
> > records - they should be sent as part of the DHCP lease, so leaving 
the
> > DNS set to automatic should pick them up.
> 
> IIRC, our Docker containers do not use DHCP.  Is there any other way
> to find out the correct DNS server(s) for the containers to use?


> From: Kevin Benton <kevin at benton.pub>
> ...
> 
> Whoops. What I just said was wrong if it hadn't been explicitly 
overwritten.
> 
> I think you will end up having to do a port-list looking for the DHCP 
port(s).
> http://paste.openstack.org/show/496604/



So the DNS server and the DHCP server are bundled together?

Like I said, our Docker containers do not use DHCP.  Our subnets do not 
enable DHCP.  We have no DHCP ports.  Does that mean we do not get 
internal DNS?

Thanks,
Mike


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