Open Stack

 Hello,

I am trying to get the l2gw feature installed on an openstack install on
centos 7 using the rdo queens repo.

Initially I installed the l2gw rpms form the repo:

 yum install openstack-neutron-l2gw-agent
======================================================================================
Package                            Arch       Version
Repository
======================================================================================
Installing:
 openstack-neutron-l2gw-agent      noarch     1:12.0.1-1.el7
centos-openstack-queens
Installing for dependencies:
 python2-networking-l2gw           noarch     1:12.0.1-1.el7
centos-openstack-queens

I enabled the service plugin in /etc/neutron/neutron.conf:
[root at gullwing-controller neutron]# grep service_plugin neutron.conf
service_plugins =
router,networking_l2gw.services.l2gateway.plugin.L2GatewayPlugin

I pointed my l2gw plugin to my gw in l2gateway_agent.ini:
[root at gullwing-controller neutron]# grep ovsdb1 l2gateway_agent.ini
ovsdb_hosts = 'ovsdb1:10.0.0.31:6632'

I upgraded the neutron DB

systemctl stop neutron-server
neutron-db-manage --config-file /etc/neutron/neutron.conf
--config-file /etc/neutron/l2gw_plugin.ini  upgrade head
systemctl start neutron-server

I then added the "--config-file /etc/neutron/l2gw_plugin.ini" to the
ExecStart of the nova-server systemd unit file.

When I try to restart nova, it fails with:
2018-08-30 09:59:32.605 21059 ERROR neutron Invalid: Driver
networking_l2gw.services.l2gateway.service_drivers.rpc_l2gw.L2gwRpcDriver
is not unique across providers


One web page https://lonelypacket.co.uk/post/openstack-pike-l2gw-setup-on-ubuntu-16-04/
 suggested adding a service_providers
section to neutron.conf but it made no difference.
[service_providers]
service_provider=L2GW:l2gw:networking_l2gw.services.l2gateway.service_drivers.rpc_l2gw.L2gwRpcDriver:default

I also tried uninstalling the l2gw rpms and used a clone of
https://github.com/openstack/networking-l2gw, also tried
branch stable/queens.

When I tried that version, I got an error "AttributeError: 'module'
object has no attribute 'L3'" which seems to be related to
https://lists.launchpad.net/yahoo-eng-team/msg73944.html

I would appreciate any insight that you can give me and would be happy
to provide any requested info.

Thanks,

Mike Oliveras
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