examples/ccnx/planetlab_ccnx_unicast.py

   1 #!/usr/bin/env python
   2
   3 ##
   4 ## Experiment topology:
   5 ##
   6 ##  ccncatchunks                                ccnsendchunks
   7 ##       |                                            |
   8 ##       .->  node1 -- .. -- nodei -- .. -- nodeN   <-.
   9 ##
  10 ##
  11 ##  - Nodes are connected through Intenet
  12 ##  - On each node runs a CCNx daemon
  13 ##  - Static entries are added to the CCNx FIB on each node to communicate them in series.
  14 ##    (Nodes only have FIB entries to at most two nodes)
  15 ##
  16
  17 from nepi.core.design import ExperimentDescription, FactoriesProvider
  18 from nepi.core.execute import ExperimentController
  19 from nepi.util.constants import ApplicationStatus as AS
  20 import ipaddr
  21 import math
  22 from optparse import OptionParser, SUPPRESS_HELP
  23 import os
  24 import signal
  25 import string
  26 import subprocess
  27 import tempfile
  28 import time
  29
  30 # Trak SIGTERM, and set global termination flag instead of dying
  31 TERMINATE = []
  32 def _finalize(sig,frame):
  33     global TERMINATE
  34     TERMINATE.append(None)
  35 signal.signal(signal.SIGTERM, _finalize)
  36 signal.signal(signal.SIGINT, _finalize)
  37
  38 def create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
  39         port_base, root_dir, exp_desc):
  40     pl_provider = FactoriesProvider("planetlab")
  41     slice_desc = exp_desc.add_testbed_description(pl_provider)
  42     slice_desc.set_attribute_value("homeDirectory", root_dir)
  43     slice_desc.set_attribute_value("slice", slicename)
  44     slice_desc.set_attribute_value("sliceSSHKey", pl_ssh_key)
  45     slice_desc.set_attribute_value("authUser", pl_user)
  46     slice_desc.set_attribute_value("authPass", pl_pwd)
  47     slice_desc.set_attribute_value("plcHost", plc_host)
  48     slice_desc.set_attribute_value("tapPortBase", port_base)
  49     slice_desc.set_attribute_value("p2pDeployment", True)
  50     # Kills all running processes before starting the experiment
  51     slice_desc.set_attribute_value("cleanProc", True)
  52     # NOTICE: Setting 'cleanHome' to 'True' will erase all previous
  53     # folders in the sliver Home directory, including result files!
  54     #slice_desc.set_attribute_value("cleanHome", True)
  55     slice_desc.set_attribute_value("plLogLevel", "DEBUG")
  56     return slice_desc
  57
  58 def create_node(hostname, pl_inet, slice_desc):
  59     pl_node = slice_desc.create("Node")
  60     pl_node.set_attribute_value("hostname", hostname)
  61     pl_node.set_attribute_value("label", hostname)
  62     pl_iface = slice_desc.create("NodeInterface")
  63     pl_iface.set_attribute_value("label", "iface_%s" % hostname)
  64     pl_iface.connector("inet").connect(pl_inet.connector("devs"))
  65     pl_node.connector("devs").connect(pl_iface.connector("node"))
  66     return pl_node
  67
  68 def create_ccnd(pl_node, routes, slice_desc):
  69     pl_app = slice_desc.create("CCNxDaemon")
  70
  71     # We can specify a default ccnx version to be either ccnx-0.5.1 or ccnx-0.6.0
  72     #pl_app.set_attribute_value("ccnxversion", "ccnx-0.5.1")
  73
  74     # We can also specify a custom local source and build and install directives
  75     path_to_source = os.path.join(os.path.dirname(os.path.abspath(__file__)),
  76         "ccnx-0.6.0rc3.tar.gz")
  77     pl_app.set_attribute_value("sources", path_to_source)
  78     pl_app.set_attribute_value("build",
  79             "tar xzf ${SOURCES}/ccnx-0.6.0rc3.tar.gz && "
  80             "cd ./ccnx-0.6.0rc3 && "
  81             "./configure && make ")
  82     pl_app.set_attribute_value("install", "cp -r ./ccnx-0.6.0rc3/bin ${SOURCES}")
  83     # We use a wildcard to replace the public IP address of the node during runtime
  84     routes = "|".join(map(lambda route: "udp {#[iface_%s].addr[0].[Address]#}" % route, routes))
  85
  86     # Add multicast ccn routes
  87     pl_app.set_attribute_value("ccnroutes", routes)
  88     pl_app.enable_trace("stdout")
  89     pl_app.enable_trace("stderr")
  90     pl_app.connector("node").connect(pl_node.connector("apps"))
  91
  92 def create_ccnsendchunks(pl_node, slice_desc):
  93     pl_app = slice_desc.create("Application")
  94     path_to_video = os.path.join(os.path.dirname(os.path.abspath(__file__)),
  95         "../big_buck_bunny_240p_mpeg4_lq.ts")
  96     pl_app.set_attribute_value("stdin", path_to_video)
  97     pl_app.set_attribute_value("command", "ccnsendchunks ccnx:/VIDEO")
  98     pl_app.enable_trace("stdout")
  99     pl_app.enable_trace("stderr")
 100     pl_app.connector("node").connect(pl_node.connector("apps"))
 101     return pl_app
 102
 103 def exec_ccncatchunks(slicename, hostname):
 104     print "Getting video chunks from %s ..." % hostname
 105     login = "%s@%s" % (slicename, hostname)
 106     command = 'PATH=$PATH:$(ls | egrep nepi-ccnd- | head -1)/bin; ccncatchunks2 ccnx:/VIDEO'
 107     proc1 = subprocess.Popen(['ssh', login, command], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell = False)
 108     proc2 = subprocess.Popen(['vlc', '-'], stdin=proc1.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 109     return proc2
 110
 111 def create_ed(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
 112         port_base, root_dir, delay):
 113
 114     # Create the experiment description object
 115     exp_desc = ExperimentDescription()
 116
 117     # Create the slice description object
 118     slice_desc = create_slice_desc(slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
 119         port_base, root_dir, exp_desc)
 120
 121     # Create the Internet box object
 122     pl_inet = slice_desc.create("Internet")
 123
 124     # Create the Node boxes
 125     pl_nodes = dict()
 126     ccn_routes = dict()
 127     prev_hostname = None
 128     for hostname in hostnames:
 129         pl_node = create_node(hostname, pl_inet, slice_desc)
 130         pl_nodes[hostname] = pl_node
 131
 132         ccn_routes[hostname] = list()
 133         if prev_hostname:
 134             ccn_routes[hostname].append(prev_hostname)
 135             ccn_routes[prev_hostname].append(hostname)
 136         prev_hostname = hostname
 137
 138     for hostname in hostnames:
 139         pl_node = pl_nodes[hostname]
 140         routes = ccn_routes[hostname]
 141         create_ccnd(pl_node, routes, slice_desc)
 142
 143     # Create a ccnsendchunks application box in the first node
 144     hostname = hostnames[0]
 145     pl_node = pl_nodes[hostname]
 146     pl_app = create_ccnsendchunks(pl_node, slice_desc)
 147
 148     return exp_desc, pl_nodes, hostname, pl_app
 149
 150 def run(hostnames, vsys_vnet, slicename, plc_host, pl_user, pl_pwd, pl_ssh_key,
 151         port_base, root_dir, delay):
 152
 153     exp_desc, pl_nodes, hostname, pl_app = create_ed(hostnames, vsys_vnet,
 154             slicename, plc_host, pl_user, pl_pwd, pl_ssh_key, port_base,
 155             root_dir, delay)
 156
 157     xml = exp_desc.to_xml()
 158     controller = ExperimentController(xml, root_dir)
 159     controller.start()
 160
 161     while not TERMINATE and controller.status(pl_app.guid) == AS.STATUS_NOT_STARTED:
 162         time.sleep(0.5)
 163
 164     proc1 = None
 165     if not TERMINATE:
 166         hostname = hostnames[-1]
 167         proc1 = exec_ccncatchunks(slicename, hostname)
 168
 169     if not TERMINATE and proc1:
 170         time.sleep(delay)
 171
 172     proc2 = None
 173     if not TERMINATE:
 174         hostname = hostnames[-2]
 175         proc2 = exec_ccncatchunks(slicename, hostname)
 176
 177     while not TERMINATE and proc1 and proc2 and proc2.poll() is None:
 178         time.sleep(0.5)
 179
 180     if proc1:
 181         if proc1.poll() < 1:
 182            err = proc1.stderr.read()
 183            print "Stream 1 ERROR ", err
 184         else:
 185            out = proc1.stdout.read()
 186            print "Stream 1 OUTPUT ", out
 187
 188     if proc2:
 189         if proc2.poll() < 1:
 190            err = proc2.stderr.read()
 191            print "Stream 2 ERROR ", err
 192         else:
 193            out = proc2.stdout.read()
 194            print "Stream 2 OUTPUT ", out
 195
 196     controller.stop()
 197     controller.shutdown()
 198
 199 if __name__ == '__main__':
 200     root_dir = tempfile.mkdtemp()
 201     slicename = os.environ.get("PL_SLICE")
 202     pl_host = os.environ.get("PL_HOST", "www.planet-lab.eu")
 203     port_base = 2000 + (os.getpid() % 1000) * 13
 204     pl_ssh_key = os.environ.get(
 205         "PL_SSH_KEY",
 206         "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'],) )
 207     pl_user = os.environ.get('PL_USER')
 208     pl_pwd = os.environ.get('PL_PASS')
 209     pl_vsys_vnet = os.environ.get('PL_VSYS_NET')
 210     pl_hostnames = os.environ.get('PL_HOSTNAMES')
 211     default_hostnames = ['openlab02.pl.sophia.inria.fr',
 212                  'ple4.ipv6.lip6.fr',
 213                  'planetlab2.di.unito.it',
 214                  'merkur.planetlab.haw-hamburg.de',
 215                  'planetlab1.cs.uit.no',
 216                  'planetlab3.cs.st-andrews.ac.uk',
 217                  #'planetlab2.cs.uoi.gr',
 218                  'planetlab3.xeno.cl.cam.ac.uk',
 219                  'planet2.inf.tu-dresden.de',
 220                  'planetlab2.csg.uzh.ch',
 221                  'planetlab2.upm.ro',
 222                  'planetlab-um00.di.uminho.pt',
 223                  'planetlabpc2.upf.edu',
 224                  'planet2.elte.hu',
 225                  'planetlab2.esprit-tn.com' ]
 226
 227     usage = "usage: %prog -s <pl_slice> -H <pl_host> -k <ssh_key> -u <pl_user> -p <pl_password> -v <vsys_vnet> -N <host_names> -c <node_count> -d <delay>"
 228
 229     parser = OptionParser(usage=usage)
 230     parser.add_option("-s", "--slicename", dest="slicename",
 231             help="PlanetLab slicename", default=slicename, type="str")
 232     parser.add_option("-H", "--pl-host", dest="pl_host",
 233             help="PlanetLab site (e.g. www.planet-lab.eu)",
 234             default=pl_host, type="str")
 235     parser.add_option("-k", "--ssh-key", dest="pl_ssh_key",
 236             help="Path to private ssh key used for PlanetLab authentication",
 237             default=pl_ssh_key, type="str")
 238     parser.add_option("-u", "--pl-user", dest="pl_user",
 239             help="PlanetLab account user (i.e. Registration email address)",
 240             default=pl_user, type="str")
 241     parser.add_option("-p", "--pl-pwd", dest="pl_pwd",
 242             help="PlanetLab account password", default=pl_pwd, type="str")
 243     parser.add_option("-v", "--vsys-vnet", dest="vsys_vnet",
 244             help="Value of the vsys_vnet tag addigned to your slice. (e.g. 192.168.3.0/16)",
 245             default=pl_vsys_vnet, type="str")
 246     parser.add_option("-N", "--host-names", dest="hostnames",
 247             help="Comma separated list of PlanetLab hostnames to use",
 248             default=pl_hostnames, type="str")
 249     parser.add_option("-c", "--node-count", dest="node_count",
 250             help="Number of nodes to use",
 251             default=9, type="str")
 252     parser.add_option("-d", "--delay", dest="delay",
 253             help="Time to wait before retrieveing the second video stream in seconds",
 254             default=40, type="int")
 255     (options, args) = parser.parse_args()
 256
 257     hostnames = map(string.strip, options.hostnames.split(",")) if options.hostnames else default_hostnames
 258     if options.node_count > 0 and options.node_count < len(hostnames):
 259        hostnames = hostnames[0:options.node_count]
 260     vsys_vnet = options.vsys_vnet
 261     slicename = options.slicename
 262     pl_host = options.pl_host
 263     pl_user= options.pl_user
 264     pl_pwd = options.pl_pwd
 265     pl_ssh_key = options.pl_ssh_key
 266     delay = options.delay
 267
 268     run(hostnames, vsys_vnet, slicename, pl_host, pl_user, pl_pwd, pl_ssh_key,
 269             port_base, root_dir, delay)
 270