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[neutron][OVN] Instance not getting metadata


Hi Zufar,

The ovn-metadata-agent is trying to connection with the local OVSDB
instance via UNIX socket. The same socket used by the "ovn-controller"
process running on your compute nodes. For example:

$ ps ax | grep ovn-controller
 1640 ?        S<sl   0:04 ovn-controller
unix:/usr/local/var/run/openvswitch/db.sock -vconsole:emer
-vsyslog:err -vfile:info --no-chdir
--log-file=/opt/stack/logs/ovn-controller.log
--pidfile=/usr/local/var/run/openvswitch/ovn-controller.pid --detach

Can you see the "unix:/usr/local/var/run/openvswitch/db.sock" ? That's
the UNIX socket path that needs to be passed to the ovn-metadata-agent
via configuration option.

You can find that configuration option at:

$ grep ovsdb_connection /etc/neutron/networking_ovn_metadata_agent.ini
ovsdb_connection = unix:/usr/local/var/run/openvswitch/db.sock

Hope that helps,
Lucas

On Fri, Aug 16, 2019 at 5:53 AM Zufar Dhiyaulhaq
<zufardhiyaulhaq at gmail.com> wrote:
>
> Hi,
>
> I have set up OpenStack with OVN enabled (manual install) and I can create Instance, associate floating IP and test the ping.
>
> But my Instance not getting metadata from OpenStack. I check the reference architecture, https://docs.openstack.org/networking-ovn/queens/admin/refarch/refarch.html the compute nodes should have installed ovn-metadata-agent but I don't find any configuration document about ovn-metadata-agent.
>
> I have configured the configuration files like this:
>
> [DEFAULT]
> nova_metadata_ip = 10.100.100.10
> [ovs]
> ovsdb_connection = unix:/var/run/openvswitch/db.sock
> [ovn]
> ovn_sb_connection = tcp:10.101.101.10:6642
>
> But the agent always fails. Full logs: http://paste.openstack.org/show/757805/
>
> Anyone know whats happen and how to fix this error?
>
> Best Regards,
> Zufar Dhiyaulhaq