+from nepi.execution.ec import ExperimentController
+
+from optparse import OptionParser, SUPPRESS_HELP
+import os
+
+usage = ("usage: %prog -s <pl-slice> -u <pl-user> -p <pl-password> "
+ "-k <pl-ssh-key> -c <country> -o <operating-system> -n <node-count> ")
+
+parser = OptionParser(usage = usage)
+parser.add_option("-s", "--pl-slice", dest="pl_slice",
+ help="PlanetLab slicename", type="str")
+parser.add_option("-u", "--pl-user", dest="pl_user",
+ help="PlanetLab web username", type="str")
+parser.add_option("-p", "--pl-password", dest="pl_password",
+ help="PlanetLab web password", type="str")
+parser.add_option("-k", "--pl-ssh-key", dest="pl_ssh_key",
+ help="Path to private SSH key associated with the PL account",
+ type="str")
+parser.add_option("-c", "--country", dest="country",
+ help="Country for the PL hosts",
+ type="str")
+parser.add_option("-o", "--os", dest="os",
+ help="Operating system for the PL hosts",
+ type="str")
+parser.add_option("-n", "--node-count", dest="node_count",
+ help="Number of PL hosts to provision",
+ default = 2,
+ type="int")
+
+(options, args) = parser.parse_args()
+
+pl_slice = options.pl_slice
+pl_ssh_key = options.pl_ssh_key
+pl_user = options.pl_user
+pl_password = options.pl_password
+country = options.country
+os = options.os
+node_count = options.node_count
+
+def add_node(ec, pl_slice, pl_ssh_key, pl_user, pl_password, country, os):
+ node = ec.register_resource("PlanetlabNode")
+ ec.set(node, "username", pl_slice)
+ ec.set(node, "identity", pl_ssh_key)
+ ec.set(node, "pluser", pl_user)
+ ec.set(node, "plpassword", pl_password)
+
+ if country:
+ ec.set(node, "country", country)
+ if os:
+ ec.set(node, "operatingSystem", os)
+
+ ec.set(node, "cleanHome", True)
+ ec.set(node, "cleanProcesses", True)
+
+ return node
+
+## Create the experiment controller
+ec = ExperimentController(exp_id="host_select")
+
+nodes = []
+
+for i in xrange(node_count):
+ node = add_node(ec, pl_slice, pl_ssh_key, pl_user, pl_password, country, os)
+ nodes.append(node)
+
+ec.deploy()
+
+ec.wait_deployed(nodes)
+
+print "SELECTED HOSTS"
+
+for node in nodes:
+ print ec.get(node, "hostname")
+
+ec.shutdown()
+
+