Open Stack

Dennis,
That does not work. Next time when a new VM is created, it replaces the
file with default host names. I think part of the challenge is Neutron does
not know the host name associated with the port/vif, so it fabricates a
hostname based on the IP address. DNS lookup works for the fabricated host
name, but  I need host entry with real host name.

Also this should be part of VM provisioning logic. I don't want to manually
edit the host file.

Murali Balcha


On Mon, Apr 28, 2014 at 12:08 PM, Qin, Xiaohong <Xiaohong.Qin at emc.com>wrote:

> Hi Murali,
>
>
>
> The dnsmasq process is been invoked as the following in the controller,
>
>
>
> dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces
> --interface=tap7e1faebd-1c --except-interface=lo
> --pid-file=/opt/stack/data/neutron/dhcp/90a8a84a-d4dd-4c98-bf87-492342c55b94/pid
> --dhcp-hostsfile
> =/opt/stack/data/neutron/dhcp/90a8a84a-d4dd-4c98-bf87-492342c55b94/host--dhcp-optsfile=/opt/stack/data/neutron/dhcp/90a8a84a-d4dd-4c98-bf87-492342c55b94/opts
> --leasefile-ro --dhcp-range=set:tag0,10.0.0.0,static,86400s
> --dhcp-lease-max=256 --conf-file= --domain=openstacklocal
>
>
>
> So it is consulting this file for name resolution,
>
>
>
> /opt/stack/data/neutron/dhcp/90a8a84a-d4dd-4c98-bf87-492342c55b94/host
>
>
>
> You can modify this file to map your hosts to different names as a work
> around. It might be possible to force this file to be auto generated with
> your desired options.
>
>
>
> Dennis Qin
>
>
>
> *From:* Muralidhar Balcha [mailto:muralidharb at gmail.com]
> *Sent:* Friday, April 25, 2014 5:23 PM
> *To:* openstack at lists.openstack.org
> *Subject:* [Openstack] Neutron dnsmasq question
>
>
>
> Folks,
>
> Neutron is populating dnsmasq host file with hostname something like
> "host-192-168-0-0". This is not particularly useful for me. I need name
> resolution on the host name. How can I override this behavior? I am using
> Havana and this behavior is hardcoded in the code. Is there any workaround
> for this issue?
>
>
>
> Regards,
>
>
>
> --
> Muralidhar Balcha
> 508 494 5007
>



-- 
Muralidhar Balcha
508 494 5007
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