+++ /dev/null
-#!/usr/bin/env python
-
-from nepi.core.design import ExperimentDescription, FactoriesProvider
-from nepi.core.execute import ExperimentController
-from nepi.util.constants import ApplicationStatus as AS
-import ipaddr
-import math
-from optparse import OptionParser, SUPPRESS_HELP
-import os
-import random
-import signal
-import string
-import subprocess
-import tempfile
-import time
-
-# Trak SIGTERM, and set global termination flag instead of dying
-TERMINATE = []
-def _finalize(sig,frame):
- global TERMINATE
- TERMINATE.append(None)
-signal.signal(signal.SIGTERM, _finalize)
-signal.signal(signal.SIGINT, _finalize)
-
-def create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
- port_base, root_dir, exp_desc):
- pl_provider = FactoriesProvider("planetlab")
- slice_desc = exp_desc.add_testbed_description(pl_provider)
- slice_desc.set_attribute_value("homeDirectory", root_dir)
- slice_desc.set_attribute_value("slice", slicename)
- slice_desc.set_attribute_value("sliceSSHKey", pl_ssh_key)
- slice_desc.set_attribute_value("authUser", pl_user)
- slice_desc.set_attribute_value("authPass", pl_pwd)
- slice_desc.set_attribute_value("plcHost", plc_host)
- slice_desc.set_attribute_value("tapPortBase", port_base)
- # Kills all running processes before starting the experiment
- slice_desc.set_attribute_value("cleanProc", True)
- slice_desc.set_attribute_value("plLogLevel", "DEBUG")
- return slice_desc
-
-def create_node(hostname, pl_inet, slice_desc):
- pl_node = slice_desc.create("Node")
- pl_node.set_attribute_value("hostname", hostname)
- pl_node.set_attribute_value("label", hostname)
- pl_iface = slice_desc.create("NodeInterface")
- #pl_iface.set_attribute_value("label", "iface_%s" % hostname)
- pl_iface.connector("inet").connect(pl_inet.connector("devs"))
- pl_node.connector("devs").connect(pl_iface.connector("node"))
- return pl_node
-
-def create_tunnel(node, peer, pl_nodes, slice_desc, subnet):
- pl_node = pl_nodes[node]
- pl_peer = pl_nodes[peer]
-
- pl_tun = slice_desc.create("TunInterface")
- pl_tun.set_attribute_value("label", "tun_%s%s" % (node, peer))
- pl_node.connector("devs").connect(pl_tun.connector("node"))
-
- pl_tunpeer = slice_desc.create("TunInterface")
- pl_tunpeer.set_attribute_value("label", "tun_%s%s" % (peer, node))
- pl_peer.connector("devs").connect(pl_tunpeer.connector("node"))
-
- pl_tun.connector("udp").connect(pl_tunpeer.connector("udp"))
-
- iterhosts = subnet.iterhosts()
- addr = iterhosts.next()
- ip = pl_tun.add_address()
- ip.set_attribute_value("Address", addr.exploded)
- ip.set_attribute_value("NetPrefix", subnet.prefixlen)
-
- peeraddr = iterhosts.next()
- peerip = pl_tunpeer.add_address()
- peerip.set_attribute_value("Address", peeraddr.exploded)
- peerip.set_attribute_value("NetPrefix", subnet.prefixlen)
-
-def create_ccnd(pl_node, slice_desc):
- pl_app = slice_desc.create("CCNxDaemon")
- # Add multicast ccn route
- #pl_app.set_attribute_value("ccnroutes", "udp 224.0.0.204 2869")
- pl_app.enable_trace("stdout")
- pl_app.enable_trace("stderr")
- pl_app.connector("node").connect(pl_node.connector("apps"))
-
-def create_ccnsendchunks(pl_node, slice_desc):
- pl_app = slice_desc.create("Application")
- path_to_video = os.path.join(os.path.dirname(os.path.abspath(__file__)),
- "big_buck_bunny_240p_mpeg4_lq.ts")
- pl_app.set_attribute_value("stdin", path_to_video)
- pl_app.set_attribute_value("command", "ccnsendchunks ccnx:/VIDEO")
- pl_app.enable_trace("stdout")
- pl_app.enable_trace("stderr")
- pl_app.connector("node").connect(pl_node.connector("apps"))
- return pl_app
-
-def exec_ccncatchunks(slicename, hostname):
- print "Starting Vlc streamming ..."
- login = "%s@%s" % (slicename, hostname)
- command = 'PATH=$PATH:$(ls | egrep nepi-ccnd- | head -1)/bin; ccncatchunks2 ccnx:/VIDEO'
- proc1 = subprocess.Popen(['ssh', login, command], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell = False)
- proc2 = subprocess.Popen(['vlc', '-'], stdin=proc1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
- return proc2
-
-def create_ed(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
- port_base, root_dir):
-
- # Create the experiment description object
- exp_desc = ExperimentDescription()
-
- # Create the slice description object
- slice_desc = create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
- port_base, root_dir, exp_desc)
-
- # Create the Internet box object
- pl_inet = slice_desc.create("Internet")
-
- # Create the Node boxes
- pl_nodes = dict()
- for hostname in hostnames:
- pl_node = create_node(hostname, pl_inet, slice_desc)
- pl_nodes[hostname] = pl_node
-
- # Get the base network segment (slice vsys_vnet) to assign all the IP addresses
- # to the virtual interfaces
- base = ipaddr.IPNetwork(vsys_vnet)
-
- # Calculate the number of virtual networks required to connect all the nodes
- # with all other nodes as the binomial coeficient C(n, 2), with n = #nodes
- n = len(hostnames)
- c = math.factorial(n) / (2 * math.factorial(n-2))
-
- # Validate that we can get 'c' /30 subnetworks
- if c > math.pow(2, (30 - base.prefixlen)):
- raise RuntimeError("Insufficient address segment %s for experiment", vsys_vnet)
-
- # Create the subnetwors iterator
- iter_sub = base.iter_subnets(new_prefix=30)
-
- # Create tunnels between nodes
- for i, node in enumerate(hostnames):
- peers = hostnames[i+1:]
- for peer in peers:
- subnet = iter_sub.next()
- create_tunnel(node, peer, pl_nodes, slice_desc, subnet)
-
- # Create ccnd daemons in all nodes
- for pl_node in pl_nodes.values():
- create_ccnd(pl_node, slice_desc)
-
- # Create a ccnsendchunks in a randomly chosen node to publish some content
- hostname = random.choice(pl_nodes.keys())
- pl_node = pl_nodes[hostname]
- pl_app = create_ccnsendchunks(pl_node, slice_desc)
-
- return exp_desc, pl_nodes, hostname, pl_app
-
-def run(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
- port_base, root_dir):
-
- exp_desc, pl_nodes, hostname, pl_app = create_ed(hostnames, vsys_vnet,
- slicename, plc_host, pl_user, pl_pwd, pl_ssh_key, port_base,
- root_dir)
-
- xml = exp_desc.to_xml()
- controller = ExperimentController(xml, root_dir)
- controller.start()
-
- while not TERMINATE and controller.status(pl_app.guid) == AS.STATUS_NOT_STARTED:
- time.sleep(0.5)
-
- proc = None
- if not TERMINATE:
- hostnames = pl_nodes.keys()
- hostnames.remove(hostname)
- # Randomnly choose a different hostname, than the one executing
- # ccnsendchunks, to execute ccncatchunks and retrieve the VIDEO
- hostname = random.choice(hostnames)
- proc = exec_ccncatchunks(slicename, hostname)
-
- while not TERMINATE and proc and proc.poll() is None:
- time.sleep(0.5)
-
- if proc:
- if proc.poll() < 1:
- err = proc.stderr.read()
- print "ERROR ", err
- else:
- out = proc.stdout.read()
- print "OUTPUT ", out
-
- controller.stop()
- controller.shutdown()
-
-if __name__ == '__main__':
- root_dir = tempfile.mkdtemp()
- slicename = os.environ.get("PL_SLICE")
- pl_host = os.environ.get("PL_HOST", "www.planet-lab.eu")
- port_base = 2000 + (os.getpid() % 1000) * 13
- pl_ssh_key = os.environ.get(
- "PL_SSH_KEY",
- "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'],) )
- pl_user = os.environ.get('PL_USER')
- pl_pwd = os.environ.get('PL_PASS')
- pl_vsys_vnet = os.environ.get('PL_VSYS_NET')
- pl_hostnames = os.environ.get('PL_HOSTNAMES')
- default_hostnames = ['openlab02.pl.sophia.inria.fr',
- 'ple4.ipv6.lip6.fr',
- #'planetlab2.di.unito.it',
- #'merkur.planetlab.haw-hamburg.de',
- #'planetlab1.cs.uit.no',
- #'planetlab3.cs.st-andrews.ac.uk',
- #'planetlab2.cs.uoi.gr',
- #'planetlab3.xeno.cl.cam.ac.uk',
- #'planet2.inf.tu-dresden.de',
- #'planetlab2.csg.uzh.ch',
- #'planetlab2.upm.ro',
- #'planetlab-um00.di.uminho.pt',
- #'planetlabpc2.upf.edu',
- #'planet2.elte.hu',
- 'planetlab2.esprit-tn.com' ]
-
- usage = "usage: %prog -s <pl_slice> -H <pl_host> -k <ssh_key> -u <pl_user> -p <pl_password> -v <vsys_vnet> -N <host_names> "
-
- parser = OptionParser(usage=usage)
- parser.add_option("-s", "--slicename", dest="slicename",
- help="PlanetLab slicename", default=slicename, type="str")
- parser.add_option("-H", "--pl-host", dest="pl_host",
- help="PlanetLab site (e.g. www.planet-lab.eu)",
- default=pl_host, type="str")
- parser.add_option("-k", "--ssh-key", dest="pl_ssh_key",
- help="Path to private ssh key used for PlanetLab authentication",
- default=pl_ssh_key, type="str")
- parser.add_option("-u", "--pl-user", dest="pl_user",
- help="PlanetLab account user (i.e. Registration email address)",
- default=pl_user, type="str")
- parser.add_option("-p", "--pl-pwd", dest="pl_pwd",
- help="PlanetLab account password", default=pl_pwd, type="str")
- parser.add_option("-v", "--vsys-vnet", dest="vsys_vnet",
- help="Value of the vsys_vnet tag addigned to your slice. (e.g. 192.168.3.0/16)",
- default=pl_vsys_vnet, type="str")
- parser.add_option("-N", "--host-names", dest="hostnames",
- help="Comma separated list of PlanetLab hostnames to use",
- default=pl_hostnames, type="str")
- (options, args) = parser.parse_args()
-
- hostnames = map(string.strip, options.hostnames.split(",")) if options.hostnames else default_hostnames
- vsys_vnet = options.vsys_vnet
- slicename = options.slicename
- pl_host = options.pl_host
- pl_user= options.pl_user
- pl_pwd = options.pl_pwd
- pl_ssh_key = options.pl_ssh_key
-
- """
- hostnames = ['nepi1.pl.sophia.inria.fr',
- 'nepi2.pl.sophia.inria.fr',
- 'nepi3.pl.sophia.inria.fr',
- 'nepi5.pl.sophia.inria.fr']
-
- pl_host = "nepiplc.pl.sophia.inria.fr"
- vsys_vnet = "192.168.2.0/24"
- """
-
- run(hostnames, vsys_vnet, slicename, pl_host, pl_user, pl_pwd, pl_ssh_key,
- port_base, root_dir)
-
git://git.onelab.eu / nepi.git / commitdiff