vtn notes:
see also: https://github.com/hyunsun/documentations/wiki/Neutron-ONOS-Integration-for-CORD-VTN#onos-setup
inside the xos container:
python /opt/xos/tosca/run.py padmin@vicci.org /opt/xos/tosca/samples/vtn.yaml
ctl node:
# set ONOS_VTN_HOSTNAME to the host where the VTN container was installed
ONOS_VTN_HOSTNAME="cp-2.smbaker-xos5.xos-pg0.clemson.cloudlab.us"
apt-get -y install python-pip
pip install -U setuptools pip
pip install testrepository
git clone https://github.com/openstack/networking-onos.git
cd networking-onos
python setup.py install
# the above fails the first time with an error about pbr.json
# I ran it again and it succeeded, but I am skeptical there's
# not still an issue lurking...
cat > /usr/local/etc/neutron/plugins/ml2/conf_onos.ini <<EOF
[ml2_onos]
url_path = http://$ONOS_VTN_HOSTNAME:8181/onos/openstackswitching
username = karaf
password = karaf
EOF
emacs /etc/neutron/plugins/ml2/ml2_conf.ini
update settings as per vtn docs ([ml2] and [ml2_type_vxlan] sections)
systemctl stop neutron-server
# I started neutron manually to make sure it's using exactly the right config
# files. Maybe it can be restarted using systemctl instead...
/usr/bin/neutron-server --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini --config-file /usr/local/etc/neutron/plugins/ml2/conf_onos.ini
Neutron driver arg-parsing issue
# For some reason, the VTN Neutron plugin isn't getting its arguments from neutron
emacs /usr/local/lib/python2.7/dist-packages/networking_onos/plugins/ml2/driver.py
hard-code self.onos_path and self.onos_auth
Compute node that has the ONOS Container
# we need NAT rule so the neutron vtn plugin can talk to onos # change 172.17.0.2 to the IP address for the ONOS container (use "docker inspect") iptables -t nat -A PREROUTING -i br-ex -p tcp --dport 8101 -j DNAT --to-destination 172.17.0.2 iptables -t nat -A PREROUTING -i br-ex -p tcp --dport 8181 -j DNAT --to-destination 172.17.0.2
Compute nodes (all of them):
systemctl stop neutron-plugin-openvswitch-agent
emacs /usr/share/openvswitch/scripts/ovs-ctl
update settings as per vtn docs to make port 6640 visible
service openvswitch-switch restart
ovs-vsctl del-br br-int
nm node:
# neutron-dhcp-agent causes VTN app to throw port errors, because XOS uses --no-gateway systemctl stop neutron-dhcp-agent.service
VTN doesn't seem to like cloudlab's networks (flat-net-1, ext-net, etc). You might have to delete them all. I've placed a script in xos/scripts/ called destroy-all-networks.sh that will automate tearing down all of cloudlab's neutron networks.
For development, I suggest using the bash configuration (remember to start the ONOS observer manually) so that there aren't a bunch of preexisting Neutron networks and nova instances to get in the way.
Problems: