4 # NEPI, a framework to manage network experiments
5 # Copyright (C) 2013 INRIA
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 # Author: Alina Quereilhac <alina.quereilhac@inria.fr>
27 # content l1 / \ l2 ccncat
29 # 0 ----- h1 0 --- 0 h3 ------ 0
35 # - t0 : b2 retrives video published in b1
41 from nepi.execution.ec import ExperimentController, ECState
42 from nepi.execution.resource import ResourceState, ResourceAction
43 from nepi.execution.trace import TraceAttr
46 from optparse import OptionParser, SUPPRESS_HELP
51 def add_node(ec, host, user, ssh_key = None):
52 node = ec.register_resource("LinuxNode")
53 ec.set(node, "hostname", host)
54 ec.set(node, "username", user)
55 ec.set(node, "identity", ssh_key)
56 ec.set(node, "cleanHome", True)
57 ec.set(node, "cleanProcesses", True)
60 def add_ccnd(ec, node):
61 ccnd = ec.register_resource("LinuxCCND")
62 ec.set(ccnd, "debug", 7)
63 ec.register_connection(ccnd, node)
66 def add_ccnr(ec, ccnd):
67 ccnr = ec.register_resource("LinuxCCNR")
68 ec.register_connection(ccnr, ccnd)
71 def add_fib_entry(ec, ccnd, peer_host):
72 entry = ec.register_resource("LinuxFIBEntry")
73 ec.set(entry, "host", peer_host)
74 ec.register_connection(entry, ccnd)
77 def add_content(ec, ccnr, content_name, content):
78 co = ec.register_resource("LinuxCCNContent")
79 ec.set(co, "contentName", content_name)
80 ec.set(co, "content", content)
81 ec.register_connection(co, ccnr)
84 def add_stream(ec, ccnd, content_name):
85 # ccnx v7.2 issue 101007
86 command = "ccnpeek %(content_name)s; ccncat %(content_name)s" % {
87 "content_name" : content_name}
89 app = ec.register_resource("LinuxCCNApplication")
90 ec.set(app, "command", command)
91 ec.register_connection(app, ccnd)
95 def add_collector(ec, trace_name):
96 collector = ec.register_resource("Collector")
97 ec.set(collector, "traceName", trace_name)
102 pl_slice = os.environ.get("PL_SLICE")
104 # We use a specific SSH private key for PL if the PL_SSHKEY is specified or the
105 # id_rsa_planetlab exists
106 default_key = "%s/.ssh/id_rsa_planetlab" % (os.environ['HOME'])
107 default_key = default_key if os.path.exists(default_key) else None
108 pl_ssh_key = os.environ.get("PL_SSHKEY", default_key)
110 usage = "usage: %prog -s <pl-user> -m <movie> -e <exp-id> -i <ssh_key> -r <results>"
112 parser = OptionParser(usage=usage)
113 parser.add_option("-s", "--pl-user", dest="pl_user",
114 help="PlanetLab slicename", default = pl_slice, type="str")
115 parser.add_option("-m", "--movie", dest="movie",
116 help="Stream movie", type="str")
117 parser.add_option("-e", "--exp-id", dest="exp_id",
118 help="Label to identify experiment", type="str")
119 parser.add_option("-i", "--pl-ssh-key", dest="pl_ssh_key",
120 help="Path to private SSH key to be used for connection",
121 default = pl_ssh_key, type="str")
122 parser.add_option("-r", "--results", dest="results", default = "/tmp",
123 help="Path to directory where to store results", type="str")
125 (options, args) = parser.parse_args()
127 if not options.movie:
128 parser.error("movie is a required argument")
130 return (options.pl_user, options.movie, options.exp_id, options.pl_ssh_key,
133 if __name__ == '__main__':
134 content_name = "ccnx:/test/VIDEO"
136 ( pl_user, movie, exp_id, pl_ssh_key, results_dir ) = get_options()
138 ec = ExperimentController(exp_id = exp_id, local_dir = results_dir)
141 #host1 = "planetlab4.wail.wisc.edu"
142 #host2 = "planetlab2.cs.columbia.edu"
143 #host3 = "ricepl-2.cs.rice.edu"
144 #host4 = "node1.planetlab.albany.edu"
145 #host5 = "earth.cs.brown.edu"
146 #host6 = "planetlab2.engr.uconn.edu"
149 host1 = "planetlab2.fct.ualg.pt"
150 host2 = "planet2.unipr.it"
151 host3 = "planetlab1.aston.ac.uk"
152 host4 = "itchy.comlab.bth.se"
153 host5 = "rochefort.infonet.fundp.ac.be"
154 host6 = "planetlab1.u-strasbg.fr"
156 # describe nodes in the central ring
157 ring_hosts = [host1, host2, host3, host4]
160 for i in xrange(len(ring_hosts)):
162 node = add_node(ec, host, pl_user, pl_ssh_key)
163 ccnd = add_ccnd(ec, node)
164 ccnr = add_ccnr(ec, ccnd)
167 ## Add ccn ring links
168 # l1 : h1 - h2 , h2 - h1
169 l1u = add_fib_entry(ec, ccnds[host1], host2)
170 l1d = add_fib_entry(ec, ccnds[host2], host1)
172 # l2 : h2 - h3 , h3 - h2
173 l2u = add_fib_entry(ec, ccnds[host2], host3)
174 l2d = add_fib_entry(ec, ccnds[host3], host2)
176 # l3 : h3 - h4 , h4 - h3
177 l3u = add_fib_entry(ec, ccnds[host3], host4)
178 l3d = add_fib_entry(ec, ccnds[host4], host3)
180 # l4 : h4 - h1 , h1 - h4
181 l4u = add_fib_entry(ec, ccnds[host4], host1)
182 l4d = add_fib_entry(ec, ccnds[host1], host4)
184 # l5 : h1 - h3 , h3 - h1
185 l5u = add_fib_entry(ec, ccnds[host1], host3)
186 l5d = add_fib_entry(ec, ccnds[host3], host1)
189 bnode1 = add_node(ec, host5, pl_user, pl_ssh_key)
190 ccndb1 = add_ccnd(ec, bnode1)
191 ccnrb1 = add_ccnr(ec, ccndb1)
192 ccnds[host5] = ccndb1
193 co = add_content(ec, ccnrb1, content_name, movie)
196 bnode2 = add_node(ec, host6, pl_user, pl_ssh_key)
197 ccndb2 = add_ccnd(ec, bnode2)
198 ccnrb2 = add_ccnr(ec, ccndb2)
199 ccnds[host6] = ccndb2
200 app = add_stream(ec, ccndb2, content_name)
202 # connect border nodes
203 add_fib_entry(ec, ccndb1, host1)
204 add_fib_entry(ec, ccnds[host1], host5)
206 add_fib_entry(ec, ccndb2, host3)
207 add_fib_entry(ec, ccnds[host3], host6)
209 # Put down l5 10s after transfer started
210 ec.register_condition(l5u, ResourceAction.STOP,
211 app, ResourceState.STARTED, time = "10s")
212 ec.register_condition(l5d, ResourceAction.STOP,
213 app, ResourceState.STARTED, time = "10s")
215 # Register a collector to automatically collect traces
216 collector = add_collector(ec, "stderr")
217 for ccnd in ccnds.values():
218 ec.register_connection(collector, ccnd)
220 # deploy all ResourceManagers
223 # Wait until ccncat has started retrieving the content
224 ec.wait_started([app])
226 rvideo_path = ec.trace(app, "stdout", attr = TraceAttr.PATH)
227 command = 'tail -f %s' % rvideo_path
229 # pulling the content of the video received
230 # on b2, to stream it locally
231 proc1 = subprocess.Popen(['ssh',
232 '-o', 'StrictHostKeyChecking=no',
233 '-l', pl_user, host6,
235 stdout = subprocess.PIPE,
236 stderr = subprocess.PIPE)
238 proc2 = subprocess.Popen(['vlc',
239 '--ffmpeg-threads=1',
240 '--sub-filter', 'marq',
242 '(c) copyright 2008, Blender Foundation / www.bigbuckbunny.org',
244 '--no-video-title-show', '-'],
246 stdout=subprocess.PIPE,
247 stderr=subprocess.PIPE)
249 (stdout, stderr) = proc2.communicate()
251 # shutdown the experiment controller