def create_userspace_bridge(name):
# sudo ovs-vsctl add-br br1 -- set Bridge br1 datapath_type=netdev
cmd = [
'sudo', 'ovs-vsctl', 'add-br', name, "--", 'set', 'Bridge', name,
'datapath_type=netdev'
]
utils.run_cmd(cmd)
def set_mgmt_ip(name, ips):
#sudo ip addr add 192.168.1.1/24 dev sdn_rtr1
#sudo ip link set sdn_rtr1 up
for ip in ips:
cmd = ['sudo', 'ip', 'addr', 'add', ip, 'dev', name]
utils.run_cmd(cmd)
cmd1 = ['sudo', 'ip', 'link', 'set', name, 'up']
utils.run_cmd(cmd1)
def create_link(swname, ifname, nodename, cidr, mac=None):
# sudo ovs-docker add-port ovs-br1 eth1 node1 --ipaddress=192.168.1.1/24
# --macaddress 00:00:00:00:00:01
ipa = "--ipaddress=" + cidr
cmd = ['sudo', 'ovs-docker', 'add-port', swname, ifname, nodename, ipa]
if mac:
maca = "--macaddress=" + mac
cmd.append(maca)
utils.run_cmd(cmd)
def config_qos(tapif, qos):
cmd = [
'sudo', 'tc', 'qdisc', 'add', 'dev', tapif, 'root', 'handle', '1:0',
'netem', 'delay', qos["latency"], qos["jitter"], 'loss', qos["pktloss"]
]
response = utils.run_cmd(cmd)
cmd = [
'sudo', 'tc', 'qdisc', 'add', 'dev', tapif, 'parent', '1:1', 'handle',
'10:', 'tbf', 'rate', qos["bandwidth"], 'buffer', '1600', 'limit',
'3000'
]
response = utils.run_cmd(cmd)
def set_protocol_version(name, version):
# sudo ovs-vsctl set bridge ovs-br1 protocols=OpenFlow13
if str("1.3") == version:
v = "OpenFlow13"
elif str("1.2") == version:
v = "OpenFlow12"
else:
v = "OpenFlow10"
version = "protocols=" + v
cmd = ['sudo', 'ovs-vsctl', 'set', 'bridge', name, version]
# version 1.4,1.5 support to be checked
utils.run_cmd(cmd)
def add_static_route(name, subnet, via):
# sudo docker exec -it a3 ip route add 10.20.20.0/24 via 10.10.10.1
cmd = [
'sudo', 'docker', 'exec', '-it', name, 'ip', 'route', 'add', subnet,
'via', via
]
return utils.run_cmd(cmd)
def run_iperfc_detach_in_container(name, serverip, connections=1, t=30):
# sudo docker exec -it a3 iperf -c 10.10.10.1 -P 5
cmd = [
'sudo', 'docker', 'exec', '-d', name, 'iperf', '-i', '10', '-c',
serverip, '-P', connections, '-t', t
]
return utils.run_cmd(cmd)
def run_iperf_udpc_in_container(name, serverip, bandwidth, connections, t=30):
# sudo docker exec -it a3 iperf -c 10.10.10.1 -P 5
bandwidth = str(bandwidth) + "m"
cmd = [
'sudo', 'docker', 'exec', '-t', name, 'iperf', '-u', '-i', '10', '-c',
serverip, '-b', bandwidth, '-P', connections, '-t', t
]
result = utils.run_cmd(cmd)
print result
return
def verify_image_exits(img):
img_name, img_version = img.split(':')
# sudo docker images ubuntu:trusty
cmd = ['sudo', 'docker', 'images', img]
response = utils.run_cmd(cmd)
# verify the img exists in the output
if img_name in response and img_version in response:
return {"result": "pass", "detail": response}
else:
return {"result": "fail", "detail": response}
def create_container(name, img, net="none"):
# sudo docker run -itd --name=node1 ubuntu:trusty
n = "--name=" + name
network = "--network=" + net
hostname = "--hostname=" + name
cmd = [
'sudo', 'docker', 'run', '--cap-add=NET_ADMIN', '--privileged', '-itd',
hostname, n, network, img
]
return utils.run_cmd(cmd)
def get_port_name(container, ifname):
# ref: https://github.com/openvswitch/ovs/blob/master/utilities/ovs-docker
# fn : get_port_for_container_interface ()
cn = "external_ids:container_id=" + str(container)
ifname = "external_ids:container_iface=" + str(ifname)
cmd = [
'sudo', 'ovs-vsctl', '--data=bare', '--no-heading', '--columns=name',
'find', 'interface', cn, ifname
]
response = utils.run_cmd(cmd)
return response.strip("\n")
def create_container(name, img, net="none", cpu="0.1", mem="100m"):
# sudo docker run -itd --name=node1 ubuntu:trusty
n = "--name=" + name
network = "--network=" + net
hostname = "--hostname=" + name
cpus = "--cpus=" + cpu
memory = "--memory=" + mem
cmd = [
'sudo', 'docker', 'run', cpus, memory, '--cap-add=NET_ADMIN',
'--privileged', '-itd', hostname, n, network, img
]
return utils.run_cmd(cmd)
def adminup_link(ifname):
cmd = ['sudo', 'ifconfig', ifname, 'up']
utils.run_cmd(cmd)
def admindown_link(ifname):
cmd = ['sudo', 'ifconfig', ifname, 'down']
utils.run_cmd(cmd)
def run_ping_in_container(name, ip):
# sudo docker exec -it a3 ping 10.20.20.2 -c 5
cmd = ['sudo', 'docker', 'exec', '-t', name, 'ping', '-c', '2', ip]
return utils.run_cmd(cmd)
def delete_container(name):
cmd = ['sudo', 'docker', 'rm', name]
return utils.run_cmd(cmd)
def stop_container(name):
# sudo docker stop node1
cmd = ['sudo', 'docker', 'stop', name]
return utils.run_cmd(cmd)
def config_port_as_patch(portname):
# ovs-vsctl add-port br0 tap0
cmd = ['sudo', 'ovs-vsctl', 'set', 'interface', portname, 'type=patch']
utils.run_cmd(cmd)
def run_pkill_in_container(name, pname):
# sudo docker exec -it a3 pkill -9 iperf
cmd = ['sudo', 'docker', 'exec', '-t', name, 'pkill', '-9', pname]
return utils.run_cmd(cmd)
def run_cmd_in_container(args):
cmd = ['sudo', 'docker', 'exec', '-t'] + args
output = utils.run_cmd(cmd)
print output
return
def cleanup(self):
cpath = os.path.dirname(os.path.abspath(__file__)) + "/cleanup.sh"
cmd = ['sh', cpath]
return utils.run_cmd(cmd)
def create_bridge(name):
# sudo ovs-vsctl add-br ovs-br1
cmd = ['sudo', 'ovs-vsctl', 'add-br', name]
utils.run_cmd(cmd)
def create_container(name, img):
# sudo docker run -itd --name=node1 ubuntu:trusty
n = "--name=" + name
cmd = ['sudo', 'docker', 'run', '-itd', n, img]
return utils.run_cmd(cmd)
def delete_bridge(name):
# sudo ovs-vsctl del-br ovs-br1
cmd = ['sudo', 'ovs-vsctl', 'del-br', name]
utils.run_cmd(cmd)
def disable_inband(name):
#sudo ovs-vsctl set bridge br0 other-config:disable-in-band=true
option = 'other-config:disable-in-band=true'
cmd = ['sudo', 'ovs-vsctl', 'set', 'bridge', name, option]
utils.run_cmd(cmd)
def addport(name, portname):
# ovs-vsctl add-port br0 tap0
cmd = ['sudo', 'ovs-vsctl', 'add-port', name, portname]
utils.run_cmd(cmd)
def set_controller(name, controller):
# sudo ovs-vsctl set-controller ovs-br1 tcp:0.0.0.0:6633
cmd = ['sudo', 'ovs-vsctl', 'set-controller', name, controller]
utils.run_cmd(cmd)
def set_datapath_id(name, id):
# sudo ovs-vsctl set bridge ovs-br1 other_config:datapath-id=#{dpid}"
# convert id in to 16digit hex
datapath = "other_config:datapath-id=" + str(dpid(id))
cmd = ['sudo', 'ovs-vsctl', 'set', 'bridge', name, datapath]
utils.run_cmd(cmd)
def peer_patch_ports(portname, peerport):
# ovs-vsctl add-port br0 tap0
peer = "options:peer=" + peerport
cmd = ['sudo', 'ovs-vsctl', 'set', 'interface', portname, peer]
utils.run_cmd(cmd)
