[openstack-dev] [Neutron][LBaaS]

Vijay B os.vbvs at gmail.com
Mon Mar 24 21:39:43 UTC 2014

Hi Eugene,

Thanks for the reply! How/where is the agent configuration done for
HAProxy? If I don't want to go with a network namespace based HAProxy
process, but want to deploy my own HAProxy instance on a host outside of
the network controller node, and make neutron deploy pools/VIPs on that
HAProxy instance, does neutron currently support this scenario? If so, what
are the configuration steps I will need to carry out to deploy HAProxy on a
separate host (for example, where do I specify the ip address of the
haproxy host, etc)?


On Mon, Mar 24, 2014 at 2:04 PM, Eugene Nikanorov
<enikanorov at mirantis.com>wrote:

> Hi,
> HAProxy driver has not removed from the trunk, instead it became a base
> for agent-based driver, so the only haproxy-specific thing in the plugin
> driver is device driver name. Namespace driver is a device driver on the
> agent side and it was there from the beginning.
> The reason for the change is mere refactoring: it seems that solutions
> that employ agents could share the same code with only device driver being
> specific.
> So, everything is in place, HAProxy continues to be the default
> implementation of Neutron LBaaS service. It supports spawning haproxy
> processes on any host that runs lbaas agent.
> Thanks,
> Eugene.
> On Tue, Mar 25, 2014 at 12:33 AM, Vijay B <os.vbvs at gmail.com> wrote:
>> Hi,
>> I'm looking at HAProxy support in Neutron, and I observe that the
>> drivers/haproxy/plugin_driver.py file in the stable/havana release has been
>> effectively removed from trunk (master), in that the plugin driver in the
>> master simply points to the namespace driver. What was the reason to do
>> this? Was the plugin driver in havana tested and documented? I can't seem
>> to get hold of any relevant documentation that describes how to configure
>> HAProxy LBs installed on separate boxes (and not brought up in network
>> namespaces) - can anyone please point me to the same?
>> Also, are there any plans to bring back the HAProxy plugin driver to talk
>> to remote HAProxy instances?
>> Thanks,
>> Regards,
>> Vijay
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