openstack team mailing list archive

[Lorin Hochstein <lorin@xxxxxxxxxxxxxxxxxx>]

Cool, thanks. I'll try to get this into the docs.

Take care,

Lorin
--
Lorin Hochstein
Lead Architect - Cloud Services
Nimbis Services, Inc.
www.nimbisservices.com





On Jun 12, 2012, at 11:10 AM, Nathanael Burton wrote:

> Lorin, Diego,
> 
> I wrote up a pastebin of setting up an example dnsmasq.conf file,
> setting it within nova.conf, patching linux_net.py (in stable/essex),
> and showing the example dhcp leases file which set custom values for
> the router, ntp-server, and dns-server using the dnsmasq conf and tags
> based on the network label field within the network defined within
> nova.  The same process should work with both FlatDHCP or VLANManager.
> 
> http://paste.openstack.org/show/18471/
> 
> Thanks,
> 
> Nate
> 
> On Mon, Jun 11, 2012 at 10:17 PM, Lorin Hochstein
> <lorin@xxxxxxxxxxxxxxxxxx> wrote:
>> Hey Nate:
>> 
>> On Jun 11, 2012, at 2:17 PM, Nathanael Burton wrote:
>> 
>> dnsmasq supports setting parameters such as the gateway IP and other
>> settings based on tag. I have run a patched version of nova-network in the
>> Diablo time that used the network DB label field as the network tag in
>> dnsmasq. This then allows you to set custom configs by modifying the
>> dnsmasq.conf file. This was done with VLANmanager.
>> 
>> 
>> 
>> Are you able to share an exampleof a dnsmasq.conf file that uses tags to
>> handle different config settings per network/VLAN?
>> 
>> 
>> Take care,
>> 
>> Lorin
>> --
>> Lorin Hochstein
>> Lead Architect - Cloud Services
>> Nimbis Services, Inc.
>> www.nimbisservices.com
>> 
>> 
>> 
>> Thanks
>> 
>> Nate
>> 
>> On Jun 11, 2012 2:09 PM, "Lorin Hochstein" <lorin@xxxxxxxxxxxxxxxxxx> wrote:
>>> 
>>> 
>>> On Jun 4, 2012, at 8:22 PM, romi zhang wrote:
>>> 
>>> Hi,
>>> 
>>> I am using VLAN network mode and will connect eth1 and eth2 of my compute
>>> node to the LAN Switch, and LAN switch will create individual VLAN IP
>>> interface for each Tenant/VLAN and then route to the NAT equipment,through
>>> SNAT/DNAT to touch internet. So, that needs I can set the default gateway of
>>> each Tenant VLAN to the different IP address of VLAN interface on the
>>> switch.
>>> 
>>> 
>>> I have the same question, I would love to know if you can set the gateways
>>> in VLAN mode.
>>> 
>>> 
>>> For example, my first tenant(auto0Tenant) is at VLAN200/br200/eth1/fix_ip
>>> range is 192.168.2.0/28 and second(aotu1Tenant) is
>>> VLAN300/br300/eth2/fix_ip_range 192.168.3.0/28, the VLAN interface ip
>>> address for them on switch is 192.168.2.9 and 192.168.3.9, I want to set the
>>> default gateway of VMs in auto0Tenant to 192.168.2.9 and 192.168.3.9 for
>>> aotu1Tenant’s VMs.
>>> 
>>> I try to use two methods, the first is to use nova-command:
>>> 
>>> nova-manage network create --label=auto0Tenat
>>> --fixed_range_v4=192.168.2.0/28 --num_networks=1 --gateway=192.168.2.9
>>> --dns1=61.139.2.69 --vlan=200 --bridge=br200 --bridge_interface=eth1
>>> --network_size=16 --multi_host=T
>>> --project_id=5f9281bca6854fe3974a457d81afd78c
>>> 
>>> nova-manage network create --label=aotu1Tenant
>>> --fixed_range_v4=192.168.3.0/28 --num_networks=1 --gateway=192.168.3.9
>>> --dns1=61.139.2.69 --vlan=300 --bridge=br300 --bridge_interface=eth2
>>> --network_size=16 --multi_host=T
>>> --project_id=5f9281bca6854fe3974a457d81afd78c
>>> 
>>> but the result is the newest created VM default gateway is still the IP
>>> address of br200 or br300 by the system, that means the factor of “gateway”
>>> and “dns1” in nova-mange network command did not work.
>>> 
>>> The second way is to use dnsmasq.conf that Vish told me, that I set just
>>> dhcp_option=3,192.168.2.9. Yes it is useful for auto0Tenat VLAN, it can set
>>> auto0Tenant gateway to 192.168.2.9, but how to set others at the same time?
>>> 
>>> Then I tried to use:
>>> 
>>> Interface=vlan200
>>> dhcp_option=3,192.168.2.9
>>> 
>>> Interface=vlan300
>>> dhcp_option=3,192.168.3.9
>>> 
>>> 
>>> 
>>> Does it actually work to specify multiple interfaces in the dnsmasq conf
>>> file like that? I would have thought that the second values would override
>>> the first ones.
>>> 
>>> 
>>> Take care,
>>> 
>>> Lorin
>>> --
>>> Lorin Hochstein
>>> Lead Architect - Cloud Services
>>> Nimbis Services, Inc.
>>> www.nimbisservices.com
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~openstack
>>> Post to     : openstack@xxxxxxxxxxxxxxxxxxx
>>> Unsubscribe : https://launchpad.net/~openstack
>>> More help   : https://help.launchpad.net/ListHelp
>>> 
>>

Attachment: smime.p7s
Description: S/MIME cryptographic signature