examples/planetlab/select_nodes.py

   1 from nepi.execution.ec import ExperimentController
   2
   3 from optparse import OptionParser, SUPPRESS_HELP
   4 import os
   5
   6 usage = ("usage: %prog -s <pl-slice> -u <pl-user> -p <pl-password> "
   7     "-k <pl-ssh-key> -c <country> -o <operating-system> -n <node-count> ")
   8
   9 parser = OptionParser(usage = usage)
  10 parser.add_option("-s", "--pl-slice", dest="pl_slice",
  11         help="PlanetLab slicename", type="str")
  12 parser.add_option("-u", "--pl-user", dest="pl_user",
  13         help="PlanetLab web username", type="str")
  14 parser.add_option("-p", "--pl-password", dest="pl_password",
  15         help="PlanetLab web password", type="str")
  16 parser.add_option("-k", "--pl-ssh-key", dest="pl_ssh_key",
  17         help="Path to private SSH key associated with the PL account",
  18         type="str")
  19 parser.add_option("-c", "--country", dest="country",
  20         help="Country for the PL hosts",
  21         type="str")
  22 parser.add_option("-o", "--os", dest="os",
  23         help="Operating system for the PL hosts",
  24         type="str")
  25 parser.add_option("-n", "--node-count", dest="node_count",
  26         help="Number of PL hosts to provision",
  27         default = 2,
  28         type="int")
  29
  30 (options, args) = parser.parse_args()
  31
  32 pl_slice = options.pl_slice
  33 pl_ssh_key = options.pl_ssh_key
  34 pl_user = options.pl_user
  35 pl_password = options.pl_password
  36 country = options.country
  37 os = options.os
  38 node_count = options.node_count
  39
  40 def add_node(ec, pl_slice, pl_ssh_key, pl_user, pl_password, country, os):
  41     node = ec.register_resource("PlanetlabNode")
  42     ec.set(node, "username", pl_slice)
  43     ec.set(node, "identity", pl_ssh_key)
  44     ec.set(node, "pluser", pl_user)
  45     ec.set(node, "plpassword", pl_password)
  46
  47     if country:
  48         ec.set(node, "country", country)
  49     if os:
  50         ec.set(node, "operatingSystem", os)
  51
  52     ec.set(node, "cleanHome", True)
  53     ec.set(node, "cleanProcesses", True)
  54
  55     return node
  56
  57 ## Create the experiment controller
  58 ec = ExperimentController(exp_id="host_select")
  59
  60 nodes = []
  61
  62 for i in xrange(node_count):
  63     node = add_node(ec, pl_slice, pl_ssh_key, pl_user, pl_password, country, os)
  64     nodes.append(node)
  65
  66 ec.deploy()
  67
  68 ec.wait_deployed(nodes)
  69
  70 print "SELECTED HOSTS"
  71
  72 for node in nodes:
  73     print ec.get(node, "hostname")
  74
  75 ec.shutdown()
  76
  77