def createNet(self,
nswitches=1,
nhosts=0,
ndockers=0,
autolinkswitches=False):
"""
Creates a Mininet instance and automatically adds some
nodes to it.
"""
self.net = Dockernet(controller=Controller)
self.net.addController('c0')
# add some switches
for i in range(0, nswitches):
self.s.append(self.net.addSwitch('s%d' % i))
# if specified, chain all switches
if autolinkswitches:
for i in range(0, len(self.s) - 1):
self.net.addLink(self.s[i], self.s[i + 1])
# add some hosts
for i in range(0, nhosts):
self.h.append(self.net.addHost('h%d' % i))
# add some dockers
for i in range(0, ndockers):
self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu"))
def createNet(
self,
nswitches=1, nhosts=0, ndockers=0,
autolinkswitches=False):
"""
Creates a Mininet instance and automatically adds some
nodes to it.
"""
self.net = Dockernet( controller=Controller )
self.net.addController( 'c0' )
# add some switches
for i in range(0, nswitches):
self.s.append(self.net.addSwitch('s%d' % i))
# if specified, chain all switches
if autolinkswitches:
for i in range(0, len(self.s) - 1):
self.net.addLink(self.s[i], self.s[i + 1])
# add some hosts
for i in range(0, nhosts):
self.h.append(self.net.addHost('h%d' % i))
# add some dockers
for i in range(0, ndockers):
self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu"))
def dockerNet():
"Create a network with some docker containers acting as hosts."
net = Dockernet(controller=Controller)
info('*** Adding controller\n')
net.addController('c0')
info('*** Adding hosts\n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding docker containers\n')
d1 = net.addDocker('d1', ip='10.0.0.251', dimage="ubuntu")
d2 = net.addDocker('d2', ip='10.0.0.252', dimage="ubuntu")
info('*** Adding switch\n')
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2')
info('*** Creating links\n')
net.addLink(h1, s1)
net.addLink(s1, d1)
net.addLink(h2, s2)
net.addLink(d2, s2)
net.addLink(s1, s2)
info('*** Starting network\n')
net.start()
net.ping([d1, d2])
net.ping([d1], manualdestip="10.0.0.252")
net.ping([d2, d3], manualdestip="11.0.0.254")
info('*** Dynamically add a container at runtime\n')
d4 = net.addDocker('d4', dimage="ubuntu")
# we have to specify a manual ip when we add a link at runtime
net.addLink(d4, s1, params1={"ip": "10.0.0.254/8"})
net.ping([d1], manualdestip="10.0.0.254")
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
class simpleTestTopology( unittest.TestCase ):
"""
Helper class to do basic test setups.
s1 -- s2 -- s3 -- ... -- sN
"""
def __init__(self, *args, **kwargs):
self.net = None
self.s = [] # list of switches
self.h = [] # list of hosts
self.d = [] # list of docker containers
self.docker_cli = None
super(simpleTestTopology, self).__init__(*args, **kwargs)
def createNet(
self,
nswitches=1, nhosts=0, ndockers=0,
autolinkswitches=False):
"""
Creates a Mininet instance and automatically adds some
nodes to it.
"""
self.net = Dockernet( controller=Controller )
self.net.addController( 'c0' )
# add some switches
for i in range(0, nswitches):
self.s.append(self.net.addSwitch('s%d' % i))
# if specified, chain all switches
if autolinkswitches:
for i in range(0, len(self.s) - 1):
self.net.addLink(self.s[i], self.s[i + 1])
# add some hosts
for i in range(0, nhosts):
self.h.append(self.net.addHost('h%d' % i))
# add some dockers
for i in range(0, ndockers):
self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu"))
def startNet(self):
self.net.start()
def stopNet(self):
self.net.stop()
def getDockerCli(self):
"""
Helper to interact with local docker instance.
"""
if self.docker_cli is None:
self.docker_cli = docker.Client(
base_url='unix://var/run/docker.sock')
return self.docker_cli
@staticmethod
def setUp():
pass
@staticmethod
def tearDown():
cleanup()
# make sure that all pending docker containers are killed
with open(os.devnull, 'w') as devnull:
subprocess.call(
"sudo docker rm -f $(sudo docker ps -a -q)",
stdout=devnull,
stderr=devnull,
shell=True)
def dockerNet():
"Create a network with some docker containers acting as hosts."
net = Dockernet(controller=Controller)
info('*** Adding controller\n')
net.addController('c0')
info('*** Adding hosts\n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding docker containers\n')
d1 = net.addDocker('d1', ip='10.0.0.251', dimage="ubuntu")
d2 = net.addDocker('d2', ip='10.0.0.252', dimage="ubuntu", cpu_shares=40)
d3 = net.addHost('d3',
ip='11.0.0.253',
cls=Docker,
dimage="ubuntu",
cpu_shares=20)
info('*** Adding switch\n')
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2', cls=OVSSwitch)
s3 = net.addSwitch('s3')
info('*** Creating links\n')
net.addLink(h1, s1)
net.addLink(s1, d1)
net.addLink(h2, s2)
net.addLink(d2, s2)
net.addLink(s1, s2)
#net.addLink(s1, s2, cls=TCLink, delay="100ms", bw=1, loss=10)
# try to add a second interface to a docker container
net.addLink(d2, s3, params1={"ip": "11.0.0.254/8"})
net.addLink(d3, s3)
info('*** Starting network\n')
net.start()
net.ping([d1, d2])
# our extended ping functionality
net.ping([d1], manualdestip="10.0.0.252")
net.ping([d2, d3], manualdestip="11.0.0.254")
info('*** Dynamically add a container at runtime\n')
d4 = net.addDocker('d4', dimage="ubuntu")
# we have to specify a manual ip when we add a link at runtime
net.addLink(d4, s1, params1={"ip": "10.0.0.254/8"})
# other options to do this
#d4.defaultIntf().ifconfig("10.0.0.254 up")
#d4.setIP("10.0.0.254")
net.ping([d1], manualdestip="10.0.0.254")
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
class simpleTestTopology(unittest.TestCase):
"""
Helper class to do basic test setups.
s1 -- s2 -- s3 -- ... -- sN
"""
def __init__(self, *args, **kwargs):
self.net = None
self.s = [] # list of switches
self.h = [] # list of hosts
self.d = [] # list of docker containers
self.docker_cli = None
super(simpleTestTopology, self).__init__(*args, **kwargs)
def createNet(self,
nswitches=1,
nhosts=0,
ndockers=0,
autolinkswitches=False):
"""
Creates a Mininet instance and automatically adds some
nodes to it.
"""
self.net = Dockernet(controller=Controller)
self.net.addController('c0')
# add some switches
for i in range(0, nswitches):
self.s.append(self.net.addSwitch('s%d' % i))
# if specified, chain all switches
if autolinkswitches:
for i in range(0, len(self.s) - 1):
self.net.addLink(self.s[i], self.s[i + 1])
# add some hosts
for i in range(0, nhosts):
self.h.append(self.net.addHost('h%d' % i))
# add some dockers
for i in range(0, ndockers):
self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu"))
def startNet(self):
self.net.start()
def stopNet(self):
self.net.stop()
def getDockerCli(self):
"""
Helper to interact with local docker instance.
"""
if self.docker_cli is None:
self.docker_cli = docker.Client(
base_url='unix://var/run/docker.sock')
return self.docker_cli
@staticmethod
def setUp():
pass
@staticmethod
def tearDown():
cleanup()
# make sure that all pending docker containers are killed
with open(os.devnull, 'w') as devnull:
subprocess.call("sudo docker rm -f $(sudo docker ps -a -q)",
stdout=devnull,
stderr=devnull,
shell=True)
def dockerNet():
"Create a network with some docker containers acting as hosts."
net = Dockernet(controller=Controller)
info('*** Adding controller\n')
net.addController('c0')
info('*** Adding hosts\n')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
info('*** Adding docker containers\n')
d1 = net.addDocker('d1', ip='10.0.0.251', dimage="ubuntu")
d2 = net.addDocker('d2', ip='10.0.0.252', dimage="ubuntu", cpu_shares=40)
d3 = net.addHost(
'd3', ip='11.0.0.253', cls=Docker, dimage="ubuntu", cpu_shares=20)
info('*** Adding switch\n')
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2', cls=OVSSwitch)
s3 = net.addSwitch('s3')
info('*** Creating links\n')
net.addLink(h1, s1)
net.addLink(s1, d1)
net.addLink(h2, s2)
net.addLink(d2, s2)
net.addLink(s1, s2)
#net.addLink(s1, s2, cls=TCLink, delay="100ms", bw=1, loss=10)
# try to add a second interface to a docker container
net.addLink(d2, s3, params1={"ip": "11.0.0.254/8"})
net.addLink(d3, s3)
info('*** Starting network\n')
net.start()
net.ping([d1, d2])
# our extended ping functionality
net.ping([d1], manualdestip="10.0.0.252")
net.ping([d2, d3], manualdestip="11.0.0.254")
info('*** Dynamically add a container at runtime\n')
d4 = net.addDocker('d4', dimage="ubuntu")
# we have to specify a manual ip when we add a link at runtime
net.addLink(d4, s1, params1={"ip": "10.0.0.254/8"})
# other options to do this
#d4.defaultIntf().ifconfig("10.0.0.254 up")
#d4.setIP("10.0.0.254")
net.ping([d1], manualdestip="10.0.0.254")
info('*** Running CLI\n')
CLI(net)
info('*** Stopping network')
net.stop()
