Quantum Floodlight Plugin Setup
This page describes how to configure the BigSwitch Floodlight Quantum plugin. This plugin uses the OpenFlow protocol to manage the virtual switches that connect your virtual machines to your physical network.
Work in progress
This page is currently a work in progress, as the author has not yet been able to get a fully working version. Outstanding questions are:
- How do you connect physical interfaces to the br-int bridge on the compute hosts? Do you create a separate bridge like with the openvswitch plugin, or do you connect them directly, or something else?
- How do you connect the external interface on the network node to the br-int bridge?
- What other configuration is required on the network node?
- How do you configure for DevStack?
On the physical switch
Your physical switch does not need to support OpenFlow to use this plugin. Your physical switch ports need to be configured in trunk mode to allow the VLANs that will be used by your tenant networks. (The Floodlight plugin does not support VLAN translation like the openvswitch plugin does, so the VLANs used by your tenants will be the same as the VLANs that your switch sees).
If you do have switches that support OpenFlow, you can configure them to be managed by the Floodlight controller, but how to do that isn't currenlty described here.
On the controller node
Run the Floodlight controller
To use the Floodlight plugin, you need to run a Floodlight controller that can reach the compute hosts. It will communicate with the Open vSwitch bridge that you will be setting up on each compute host.
You only need to run a single Floodlight controller in your cloud setup, although the plugin does support specifying multiple controllers if you want to configure for high availability.
If your operating system doesn't have a floodlight package, you'll probably want to roll your own service script for starting and stopping it.
Here we describe how to download, compile, and run it in debug mode form the command-line. Running in debug mode isn't suitable for production, since the controller will terminate as soon as you close your terminal, but it's fine for testing.
Install the prereqs for building floodlight (git, JDK, ant). On Ubuntu, do:
sudo apt-get install git default-jdk ant
Grab the floodlight source from github and switch to the latest stable biuld:
git clone https://github.com/floodlight/floodlight git checkout fl-last-passed-build
cd floodlight; ant
java -jar target/floodlight.jar -cf src/main/resources/quantum.properties
By default, floodlight runs on port 8080.
Edit /etc/quantum/quantum.conf and set core_plugin the variable to use the BigSwitch Floodlight plugin
core_plugin = quantum.plugins.bigswitch.plugin.QuantumRestProxyV2
You need to specify the login information of the MySQL database, as well as the location of the Floodlight controller. If you have run the Floodlight controller on the cloud controller, specify localhost:8080 as the location of the controller:
[DATABASE] sql_connection = mysql://<user>:<password>@localhost/restproxy_quantum?charset=utf8 [RESTPROXY] servers=localhost:8080
On the compute hosts
Configure a Open vSwitch integration bridge called br-int, and configure it to use the Floodlight controller. If the IP address of the controller node is 10.10.0.1, you would configure the bridge by doing:
sudo ovs-vsctl --no-wait add-br br-int sudo ovs-vsctl --no-wait br-set-external-id br-int bridge-id br-int sudo ovs-vsctl --no-wait set-controller br-int tcp:10.10.0.1:8080
Note: There is no quantum-*-agent service that runs on the compute hosts when Quantum is configured to use the Floodlight plugin.
On the network node
To be completed. (Author currently has no idea what to do here)
Note: Do not run the quantum-l3-agent service on the network node, since the Floodlight plugin provides its own L3 services through the Open vSwitch managed by the Floodlight controller.
Note: The author has not actually been able to get this working yet
Add the following lines to localrc in DevStack to configure DevStack to use Quantum with the BigSwitch Floodlight:
disable_service n-net enable_service q-svc enable_service q-dhcp enable_service q-meta enable_service quantum enable_service bigswitch_floodlight