[ovn-bgp-agent][neutron] - expose_tenant_networks bug

Satish Patel satish.txt at gmail.com
Thu Aug 25 09:31:42 UTC 2022


Hi Luis,

Very interesting, you are saying it will only expose tenant ip on gateway port node? Even we have DVR setup in cluster correct? 

Does gateway node going to expose ip for all other compute nodes? 

What if I have multiple gateway node? 

Did you configure that flag on all node or just gateway node? 

Sent from my iPhone

> On Aug 25, 2022, at 4:14 AM, Luis Tomas Bolivar <ltomasbo at redhat.com> wrote:
> 
> 
> I tested it locally and it is exposing the IP properly in the node where the ovn router gateway port is allocated. Could you double check if that is the case in your setup too?
> 
>> On Wed, Aug 24, 2022 at 8:58 AM Luis Tomas Bolivar <ltomasbo at redhat.com> wrote:
>> 
>> 
>>> On Tue, Aug 23, 2022 at 6:04 PM Satish Patel <satish.txt at gmail.com> wrote:
>>> Folks,
>>> 
>>> I am setting up ovn-bgp-agent lab in "BGP mode" and i found everything working great except expose tenant network https://ltomasbo.wordpress.com/2021/02/04/ovn-bgp-agent-testing-setup/ 
>>> 
>>> Lab Summary:
>>> 
>>> 1 controller node 
>>> 3 compute node
>>> 
>>> ovn-bgp-agent running on all compute node because i am using "enable_distributed_floating_ip=True" 
>>> 
>>> ovn-bgp-agent config:
>>> 
>>> [DEFAULT]
>>> debug=False
>>> expose_tenant_networks=True
>>> driver=ovn_bgp_driver
>>> reconcile_interval=120
>>> ovsdb_connection=unix:/var/run/openvswitch/db.sock
>>> 
>>> I am not seeing my vm on tenant ip getting exposed but when i attach FIP which gets exposed in loopback address. here is the full trace of debug logs: https://paste.opendev.org/show/buHiJ90nFgC1JkQxZwVk/ 
>> 
>> It is not exposed in any node, right? Note when expose_tenant_network is enabled, the traffic to the tenant VM is exposed in the node holding the cr-lrp (ovn router gateway port) for the router connecting the tenant network to the provider one.
>> 
>> The FIP will be exposed in the node where the VM is.
>> 
>> On the other hand, the error you see there should not happen, so I'll investigate why that is and also double check if the expose_tenant_network flag is broken somehow. 
>> 
>> Thanks!
>> 
>> 
>> -- 
>> LUIS TOMÁS BOLÍVAR
>> Principal Software Engineer
>> Red Hat
>> Madrid, Spain
>> ltomasbo at redhat.com   
>>  
> 
> 
> -- 
> LUIS TOMÁS BOLÍVAR
> Principal Software Engineer
> Red Hat
> Madrid, Spain
> ltomasbo at redhat.com   
>  
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