===================
Testing VRRP Module
===================
This page describes how to test Ryu VRRP service
Running integrated tests
========================
Some testing scripts are available.
* ryu/tests/integrated/test_vrrp_linux_multi.py
* ryu/tests/integrated/test_vrrp_multi.py
Each files include how to run in the comment.
Please refer to it.
Running multiple Ryu VRRP in network namespace
==============================================
The following command lines set up necessary bridges and interfaces.
And then run RYU-VRRP::
# ip netns add gateway1
# ip netns add gateway2
# brctl addbr vrrp-br0
# brctl addbr vrrp-br1
# ip link add veth0 type veth peer name veth0-br0
# ip link add veth1 type veth peer name veth1-br0
# ip link add veth2 type veth peer name veth2-br0
# ip link add veth3 type veth peer name veth3-br1
# ip link add veth4 type veth peer name veth4-br1
# ip link add veth5 type veth peer name veth5-br1
# brctl addif vrrp-br0 veth0-br0
# brctl addif vrrp-br0 veth1-br0
# brctl addif vrrp-br0 veth2-br0
# brctl addif vrrp-br1 veth3-br1
# brctl addif vrrp-br1 veth4-br1
# brctl addif vrrp-br1 veth5-br1
# ip link set vrrp-br0 up
# ip link set vrrp-br1 up
# ip link set veth0 up
# ip link set veth0-br0 up
# ip link set veth1-br0 up
# ip link set veth2-br0 up
# ip link set veth3-br1 up
# ip link set veth4-br1 up
# ip link set veth5 up
# ip link set veth5-br1 up
# ip link set veth1 netns gateway1
# ip link set veth2 netns gateway2
# ip link set veth3 netns gateway1
# ip link set veth4 netns gateway2
# ip netns exec gateway1 ip link set veth1 up
# ip netns exec gateway2 ip link set veth2 up
# ip netns exec gateway1 ip link set veth3 up
# ip netns exec gateway2 ip link set veth4 up
# ip netns exec gateway1 .ryu-vrrp veth1 '10.0.0.2' 254
# ip netns exec gateway2 .ryu-vrrp veth2 '10.0.0.3' 100
.. admonition:: Caveats
Please make sure that all interfaces and bridges are UP.
Don't forget interfaces in netns gateway1/gateway2.
::
^ veth5
|
V veth5-br1
-----------------------
|Linux Brirge vrrp-br1|
-----------------------
veth3-br1^ ^ veth4-br1
| |
veth3V V veth4
---------- ----------
|netns | |netns |
|gateway1| |gateway2|
|ryu-vrrp| |ryu-vrrp|
---------- ----------
veth1^ ^ veth2
| |
veth1-br0V V veth2-br0
-----------------------
|Linux Brirge vrrp-br0|
-----------------------
^ veth0-br0
|
V veth0
Here's the helper executable, ryu-vrrp::
#!/usr/bin/env python
#
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2013 Isaku Yamahata <yamahata at valinux co jp>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from ryu.lib import hub
hub.patch()
# TODO:
# Right now, we have our own patched copy of ovs python bindings
# Once our modification is upstreamed and widely deployed,
# use it
#
# NOTE: this modifies sys.path and thus affects the following imports.
# eg. oslo.config.cfg.
import ryu.contrib
from oslo.config import cfg
import logging
import netaddr
import sys
import time
from ryu import log
log.early_init_log(logging.DEBUG)
from ryu import flags
from ryu import version
from ryu.base import app_manager
from ryu.controller import controller
from ryu.lib import mac as lib_mac
from ryu.lib.packet import vrrp
from ryu.services.protocols.vrrp import api as vrrp_api
from ryu.services.protocols.vrrp import event as vrrp_event
CONF = cfg.CONF
_VRID = 7
_IP_ADDRESS = '10.0.0.1'
_PRIORITY = 100
class VRRPTestRouter(app_manager.RyuApp):
def __init__(self, *args, **kwargs):
super(VRRPTestRouter, self).__init__(*args, **kwargs)
print args
self.logger.debug('vrrp_config %s', args)
self._ifname = args[0]
self._primary_ip_address = args[1]
self._priority = int(args[2])
def start(self):
print 'start'
hub.spawn(self._main)
def _main(self):
print self
interface = vrrp_event.VRRPInterfaceNetworkDevice(
lib_mac.DONTCARE, self._primary_ip_address, None, self._ifname)
self.logger.debug('%s', interface)
ip_addresses = [_IP_ADDRESS]
config = vrrp_event.VRRPConfig(
version=vrrp.VRRP_VERSION_V3, vrid=_VRID, priority=self._priority,
ip_addresses=ip_addresses)
self.logger.debug('%s', config)
rep = vrrp_api.vrrp_config(self, interface, config)
self.logger.debug('%s', rep)
def main():
vrrp_config = sys.argv[-3:]
sys.argv = sys.argv[:-3]
CONF(project='ryu', version='ryu-vrrp %s' % version)
log.init_log()
# always enable ofp for now.
app_lists = ['ryu.services.protocols.vrrp.manager',
'ryu.services.protocols.vrrp.dumper',
'ryu.services.protocols.vrrp.sample_manager']
app_mgr = app_manager.AppManager.get_instance()
app_mgr.load_apps(app_lists)
contexts = app_mgr.create_contexts()
app_mgr.instantiate_apps(**contexts)
vrrp_router = app_mgr.instantiate(VRRPTestRouter, *vrrp_config, **contexts)
vrrp_router.start()
while True:
time.sleep(999999)
app_mgr.close()
if __name__ == "__main__":
main()