On 05/29/2015 04:50 PM, Ben Pfaff wrote: > On Fri, Apr 24, 2015 at 01:06:06PM -0400, Russell Bryant wrote: >> This patch creates a new subpackage for OVN, openvswitch-ovn. It also >> installs systemd unit files for ovncontroller and ovnnorthd services. >> Finally, it installs some template service configuration files into >> /etc/sysconfig/. >> >> If you want to run ovn-controller on a host running ovs: >> >> # systemctl start ovncontroller >> >> If you want to run ovn-northd and ovsdb-server on a management host: >> >> # systemctl start ovnnorthd >> >> If you want to run all of ovs and ovn on the same host: >> >> # cat << EOF > /etc/sysconfig/openvswitch >> OPTIONS="'--extra-dbs=ovnnb.db ovnsb.db'" >> EOF >> >> # cat << EOF > /etc/sysconfig/ovnnorthd >> OPTIONS="--no-ovsdb-server" >> EOF >> >> # ovn-ctl create_ovn_dbs >> # systemctl start openvswitch >> # systemctl start ovnnorthd >> # systemctl start ovncontroller >> >> Signed-off-by: Russell Bryant <rbry...@redhat.com> > > This looks nice but it seems awkward to have to edit config files if you > want to run both OVS and OVN on a host. Do you think there's a way to > make it simply a matter of starting both services?
I agree that it's a little awkward. It's a bit better in the latest rev, but you still have to create the ovn dbs and edit the openvswitch config to use them. http://openvswitch.org/pipermail/dev/2015-May/055586.html I hadn't thought of a good way to make it better, but let's see ... I see that ovsdb-server supports a command over the appctl unix socket to tell it to add a db. We could make ovn-northd automatically create the dbs if they're not present and tell ovsdb-server to add them. That should make it as simple as just starting the services. A downside is that would make a built-in assumption in ovn-northd that it runs local to ovsdb-server. The systemd unit file assumes that right now, but the code doesn't (and probably shouldn't). The same general thing could be implemented in a shell wrapper for ovn-northd ... which sounds kind of like ovn-ctl, so maybe I should go back to making use of that. Let me know if you have thoughts. Otherwise, I'm thinking I should add what's needed to make this only require starting the services to ovs-ctl and ovn-ctl. -- Russell Bryant _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
