Open Stack

Hi,

Thanks for your reply. Is there a way to access the code that is running in
the app to see what is the logic implemented in the app?

Regards,
Niket

On Wed, Sep 26, 2018 at 10:31 PM Slawomir Kaplonski <skaplons at redhat.com>
wrote:

> Hi,
>
> > Wiadomość napisana przez Niket Agrawal <nickgrwl3 at gmail.com> w dniu
> 26.09.2018, o godz. 18:11:
> >
> > Hello,
> >
> > I have a question regarding the Ryu integration in Openstack. By
> default, the openvswitch bridges (br-int, br-tun and br-ex) are registered
> to a controller running on 127.0.0.1 and port 6633. The output of ovs-vsctl
> get-manager is ptcp:127.0.0.1:6640. This is noticed on the nova compute
> node. However there is a different instance of the same Ryu controller
> running on the neutron gateway as well and the three openvswitch bridges
> (br-int, br-tun and br-ex) are registered to this instance of Ryu
> controller. If I stop neutron-openvswitch agent on the nova compute node,
> the bridges there are no longer connected to the controller, but the
> bridges in the neutron gateway continue to remain connected to the
> controller. Only when I stop the neutron openvswitch agent in the neutron
> gateway as well, the bridges there get disconnected.
> >
> > I'm unable to find where in the Openstack code I can access this
> implementation, because I intend to make a few tweaks to this architecture
> which is present currently. Also, I'd like to know which app is the Ryu SDN
> controller running by default at the moment. I feel the information in the
> code can help me find it too.
>
> Ryu app is started by neutron-openvswitch-agent in:
> https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/openvswitch/agent/openflow/native/main.py#L34
> Is it what You are looking for?
>
> >
> > Regards,
> > Niket
> >
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> —
> Slawek Kaplonski
> Senior software engineer
> Red Hat
>
>
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