def networkTest():
"Create a network with some docker containers acting as hosts."
info('*** Create the controller \n')
c0 = POXBridge()
net = Containernet(build=False)
info('*** Creating the network\n')
# Containers de imagenes con herramientas de red
h1 = net.addDocker('h1', ip='10.0.0.100', dimage="ubuntu_net_tools")
h2 = net.addDocker('h2', ip='10.0.0.101', dimage="ubuntu_net_tools")
h3 = net.addDocker('h3', ip='10.0.0.102', dimage="ubuntu_net_tools")
info('*** Adding switch\n')
s1 = net.addSwitch('s1')
info('*** Creating links\n')
net.addLink(h1, s1)
net.addLink(h2, s1)
net.addLink(s1, h3)
info('*** Adding controller\n')
net.addController('c0')
info('*** Build the network\n')
net.build()
info('*** Starting network\n')
net.start()
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
def topo():
net = Containernet(controller=RemoteController,
link=TCLink,
switch=OVSKernelSwitch)
info("*** Adding Controller ")
c1 = net.addController('c1', ip='127.0.0.1', port=6633)
info('*** Adding Switch')
s2 = net.addSwitch('s2',
protocols='OpenFlow10',
listenPort=6670,
mac='00:00:00:00:00:02')
s3 = net.addSwitch('s3',
protocols='OpenFlow10',
listenPort=6671,
mac='00:00:00:00:00:03')
info('*** Adding Docker Containers')
d4 = net.addDocker('d4',
mac='00:00:00:00:00:04',
ip='10.0.20.3/24',
dimage="ubuntu:trusty",
cpu_period=50000,
cpu_quota=25000)
d5 = net.addDocker('d5',
mac='00:00:00:00:00:05',
ip='10.0.10.3/24',
dimage="ubuntu:trusty",
cpu_period=50000,
cpu_quota=25000)
d6 = net.addDocker('d6',
mac='00:00:00:00:00:06',
ip='10.0.10.2/24',
dimage="ubuntu:trusty",
cpu_period=50000,
cpu_quota=25000)
d7 = net.addDocker('d7',
mac='00:00:00:00:00:07',
ip='10.0.20.2/24',
dimage="ubuntu:trusty",
cpu_period=50000,
cpu_quota=25000)
info('*** Adding links ')
net.addLink(d4, s2, cls=TCLink, delay="5ms", bw=1, loss=0)
net.addLink(d6, s2, cls=TCLink, delay="10ms", bw=10, loss=0)
net.addLink(d7, s3, cls=TCLink, delay="5ms", bw=1, loss=0)
net.addLink(d5, s3, cls=TCLink, delay="10ms", bw=10, loss=0)
net.addLink(s2, s3, cls=TCLink, delay="100ms", bw=1, loss=0)
info('*** Starting ')
net.build()
c1.start()
s3.start([c1])
s2.start([c1])
CLI(net)
net.stop()
# Add switches
info('*** Adding switches\n')
s1 = net.addSwitch('s1', protocols='OpenFlow13') #...
s2 = net.addSwitch('s2', protocols='OpenFlow13') #...
# Add links
info('*** Creating links\n')
for i in range(num_machines // 2):
links.append(net.addLink(hosts[i], s1, bw=10))
for i in range(num_machines // 2, num_machines):
links.append(net.addLink(hosts[i], s2, bw=10))
links.append(net.addLink(s1, s2, bw=1000))
links.append(net.addLink(c_h100, s1))
links.append(net.addLink(s_h200, s2))
net.addController(c0)
# Build the network
info('*** Build the network\n')
net.build()
info('*** Starting network\n')
net.start()
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
def multiControllerNet():
"Create a network from semi-scratch with multiple controllers."
net = Containernet(controller=Controller, switch=OVSSwitch, link=TCLink)
info("*** Creating (reference) controllers\n")
c = RemoteController('c', ip='172.17.0.1', port=6653)
info("*** Creating switches\n")
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2')
info("*** Creating hosts\n")
#agent1 = net.addHost('agent1', ip='10.0.0.11')
#agent2 = net.addHost('agent2', ip='10.0.0.21')
home_path = os.path.expanduser('~')
agent1 = net.addDocker('agent1',
ip='10.0.0.11',
dimage="khayamgondal/sosagent:v4",
volumes=["" + home_path + "/SOSAgent:/sos-agent"])
agent2 = net.addDocker('agent2',
ip='10.0.0.21',
dimage="khayamgondal/sosagent:v4",
volumes=["" + home_path + "/SOSAgent:/sos-agent"])
client1 = net.addDocker('client1',
ip='10.0.0.111',
dimage="khayamgondal/sosagent:v4")
server1 = net.addDocker('server1',
ip='10.0.0.211',
dimage="khayamgondal/sosagent:v4")
#controller = net.addDocker('controller', ip='10.0.0.69', dimage="khayamgondal/sosagent:v4", volumes=["/home/ubuntu/sos-for-floodlight:/sos-for-floodlight"])
#client1 = net.addHost('client1', ip='10.0.0.111')
#server1 = net.addHost('server1', ip='10.0.0.211')
info("*** Creating links\n")
net.addLink(s1, client1, port1=1, port2=1)
net.addLink(s1, agent1, port1=2, port2=1)
net.addLink(s1, s2, delay='100ms', port1=3, port2=3)
net.addLink(s2, server1, port1=1, port2=1)
net.addLink(s2, agent2, port1=2, port2=1)
#net.addLink(controller, s1, port1=0, port2=5)
#net.addLink(controller, s2, port1=1, port2=5)
info("*** Starting network\n")
net.build()
c.start()
s1.start([c])
s2.start([c])
#info( "*** Testing network\n" )
#net.pingAll()
#info( "*** Running CLI\n" )
CLI(net)
#info( "*** Stopping network\n" )
net.stop()
def topology(num=100):
info(
"Creating a network with docker containers acting as hosts and wireless mesh network environment.\n"
)
net = Containernet(controller=Controller)
info('*** Adding docker containers\n')
## In automated way will create Hosts
dh = []
listPos = positions(num)
prepareGraph(num)
sys.exit()
print("** Creating %d Station(s) " % (num))
for x in range(0, num):
ip = (254 - x)
posx, posy, posz, r = getPosition(listPos)
## This will create the hosts with image ubuntu:trusty, position and range of the device
## other information can be added later
dh.append(
net.addDocker('d' + str(x),
cls=Docker,
ip='10.0.0.' + str(ip),
dimage="ubuntu:trusty",
position=str(posx) + ',' + str(posy) + ',' +
str(posz),
range=r))
d = dh[x]
sys.stdout.write(str(d) + " ")
sys.stdout.flush()
info("\n** Adding nodes to Mesh\n")
for x in dh:
net.addMesh(x, ssid='meshNet')
#pdb.set_trace()
meshr = net.meshRouting("mesh")
info("** Routing nodes through mesh\n")
for x in dh:
meshRouting.customMeshRouting(x, 0, net.wifiNodes)
sys.stdout.write(str(x) + " ")
sys.stdout.flush()
info('\n*** Starting network\n')
net.build(
) ## Build should do the same as start but it will interconnect hosts
#net.start()
seed_node = "10.0.0.254:5001" ## seed will be always the first container!
info("** Configuring node(s)\n")
for d in dh:
sys.stdout.write(str(d) + " - ")
sys.stdout.flush()
port = 5001
dev = str(d) + "-mp0"
## Calling inside script to configure each container
nn = d.cmd(
"/bin/bash /home/config-serf.sh config rpc=127.0.0.1:7373 port=" +
str(port) + " dev=" + str(dev) + " seed=" + str(seed_node))
if nn:
print("Configured for 10.0.0.%s:%d in device %s " %
(str(ip), port, dev))
print("> %s " % (nn))
else:
print("Error in configuring %s " % (str(d)))
info('*** Starting our simulation\n')
slpv = 10 * num / 4 ### SLEEP VARIABLE!!!!
#This will start our simulation of SERF+monitor
#Calling our inside script to start the processes
st = time.time()
with open('/home/simul.' + str(num) + '-' + str(int(time.time())) + '.txt',
"a+") as myfile:
for d in range(0, num):
dh[d].sendCmd("/bin/bash /home/config-serf.sh test " + str(slpv) +
" 2>&1 /dev/null &")
see_pub(dh, out=myfile)
#dh[d+1].cmd("/bin/bash /home/config-serf.sh test 50")
time.sleep(1) ## So that each will start after each other
info("** All nodes have published services.\n")
info("** waiting for them to end.")
et = 0
while ((st + slpv) - et) >= 0: ## while within the time frame
#for i in range(0,slpv):
sys.stdout.write(".")
sys.stdout.flush()
see_pub(dh, out=myfile)
#time.sleep(1)
et = time.time()
sys.stdout.flush()
myfile.flush()
print("\n")
printTopo(net, num=num)
info("*** Simulation has ended (?)\n")
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
