Open Stack

Hello:

You need to specify two config files: the neutron.conf and the ML2 plugin
one; in this case /etc/neutron/plugins/ml2/ml2_conf.ini. Other installers
create a ML2 plugin config file per backend but this is not necessary.

Regards.

On Wed, Dec 30, 2020 at 8:29 AM Slawek Kaplonski <skaplons at redhat.com>
wrote:

> Hi,
>
> Dnia środa, 30 grudnia 2020 01:07:42 CET Gabriel Omar Gamero Montenegro
> pisze:
> > Dear all,
> >
> > I'm following the OpenStack guide for
> >  the implementation of SR-IOV mechanism driver.
> > I'm planning to incorporate this driver to
> >  my current OpenStack deployment (Queens).
> >
> > Config SR-IOV Guide:
> > https://docs.openstack.org/neutron/queens/admin/config-sriov.html
> >
> > At point 2, section "Configure neutron-server (Controller)"
> >  they said that I have to add the 'plugin.ini' file
> >   as a parameter to the neutron-server service.
> > To do this they require to
> >  <<edit the appropriate initialization script to configure the
> >   neutron-server service to load the plugin configuration file>>:
> > --config-file /etc/neutron/neutron.conf
> > --config-file /etc/neutron/plugin.ini
> >
> > I'd like to know a few things:
> >
> > (1) Which plugin.ini file are talking about?
>
> That is IMO good question. I see this file for the first time now :)
> Looking at the commit [1] and commits which this patch reference to I
> think
> that this may be some old leftover which should be cleaned.
> But maybe Rodolfo will know more as he s our SR-IOV expert in the team.
>
> > (2) How to set up the neutron-server initialization script
> >  to add the plugin.ini file?
> >   I understand that this varies between OS distro
> >    (I'm currently using Ubuntu 16.04 LTS server)
> >
> > Here are some things I tried...
> >
> > I got the following results executing this command:
> >
> > systemctl status neutron-server.service
> > ● neutron-server.service - OpenStack Neutron Server
> >    Loaded: loaded (/lib/systemd/system/neutron-server.service;
> >     enabled; vendor preset: enabled)
> >    Active: active (running) since Tue 2020-12-29 18:13:50 -05
> >  Main PID: 38590 (neutron-server)
> >     Tasks: 44
> >    Memory: 738.8M
> >       CPU: 29.322s
> >    CGroup: /system.slice/neutron-server.service
> >            ├─38590 /usr/bin/python2 /usr/bin/neutron-server
> >             --config-file=/etc/neutron/neutron.conf
> >              --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini
> >               --log-file=/var/log/neutron/neutron-server.log
> > ...
> >
> > I see 2 things:
> >
> > (i) When neutron-server is exectured,
> >  the following parameters are passed:
> > --config-file=/etc/neutron/neutron.conf
> > --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini
> > --log-file=/var/log/neutron/neutron-server.log
> >
> > (ii) The file '/lib/systemd/system/neutron-server.service'
> >  is loaded and it has the following content:
> > ...
> > ExecStart=/etc/init.d/neutron-server systemd-start
> > ...
> >
> > This indicates me that it's executing
> >  '/etc/init.d/neutron-server' script.
> > So I suppose this is the file indicated to add the parameters
> >  of the SR-IOV OpenStack documentation,
> >   but I have no idea where to put them.
> >
> > For Red-Hat distros I found this documentation
> >  with the following configuration:
> > https://access.redhat.com/documentation/en-us/
> > red_hat_enterprise_linux_openstack_platform/7/html/networking_guide
> > /sr-iov-support-for-virtual-networking
> >
> > vi /usr/lib/systemd/system/neutron-server.service
> > ...
> > ExecStart=/usr/bin/neutron-server
> >  --config-file /usr/share/neutron/neutron-dist.conf
> >   --config-file /etc/neutron/neutron.conf
> >    --config-file /etc/neutron/plugin.ini
> >     --config-file /etc/neutron/plugins/ml2/ml2_conf_sriov.ini
> >      --log-file /var/log/neutron/server.log
> >
> > Thanks in advance,
> > Gabriel Gamero
>
> [1] https://github.com/openstack/neutron/commit/
> c4e76908ae0d8c1e5bcb7f839df5e22094805299
>
> --
> Slawek Kaplonski
> Principal Software Engineer
> Red Hat
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