--- /dev/null
+#
+# NEPI, a framework to manage network experiments
+# Copyright (C) 2013 INRIA
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation;
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# Authors: Alina Quereilhac <alina.quereilhac@inria.fr>
+# Alexandros Kouvakas <alexandros.kouvakas@inria.fr>
+# Julien Tribino <julien.tribino@inria.fr>
+
+
+from nepi.execution.resource import ResourceManager, clsinit_copy, \
+ ResourceState
+from nepi.execution.attribute import Attribute, Flags
+from nepi.resources.planetlab.node import PlanetlabNode
+from nepi.resources.linux.application import LinuxApplication
+import os
+
+@clsinit_copy
+class PlanetlabOVSSwitch(LinuxApplication):
+ """
+ .. class:: Class Args :
+
+ :param ec: The Experiment controller
+ :type ec: ExperimentController
+ :param guid: guid of the RM
+ :type guid: int
+
+ """
+
+ _rtype = "planetlab::OVSSwitch"
+ _help = "Runs an OpenVSwitch on a PlanetLab host"
+ _platform = "planetlab"
+
+ _authorized_connections = ["planetlab::Node", "planetla::OVSPort", "linux::Node"]
+
+ @classmethod
+ def _register_attributes(cls):
+ """ Register the attributes of OVSSwitch RM
+
+ """
+ bridge_name = Attribute("bridge_name",
+ "Name of the switch/bridge",
+ flags = Flags.Design)
+ virtual_ip_pref = Attribute("virtual_ip_pref",
+ "Virtual IP/PREFIX of the switch",
+ flags = Flags.Design)
+ controller_ip = Attribute("controller_ip",
+ "IP of the controller",
+ flags = Flags.Design)
+ controller_port = Attribute("controller_port",
+ "Port of the controller",
+ flags = Flags.Design)
+
+ cls._register_attribute(bridge_name)
+ cls._register_attribute(virtual_ip_pref)
+ cls._register_attribute(controller_ip)
+ cls._register_attribute(controller_port)
+
+ def __init__(self, ec, guid):
+ """
+ :param ec: The Experiment controller
+ :type ec: ExperimentController
+ :param guid: guid of the RM
+ :type guid: int
+
+ """
+ super(PlanetlabOVSSwitch, self).__init__(ec, guid)
+ self._home = "ovsswitch-%s" % self.guid
+ self._node = None
+
+ @property
+ def node(self):
+ """ Node wthat run the switch
+ """
+ if not self._node:
+ nodes = self.get_connected(PlanetlabNode.get_rtype())
+ if not nodes or len(nodes) != 1:
+ msg = "PlanetlabOVSSwitch must be connected to exactly one PlanetlabNode"
+ #self.error(msg)
+ raise RuntimeError(msg)
+
+ self._node = nodes[0]
+
+ return self._node
+
+ def valid_connection(self, guid):
+ """ Check if the connection with the guid in parameter is possible. Only meaningful connections are allowed.
+
+ :param guid: Guid of the current RM
+ :type guid: int
+ :rtype: Boolean
+
+ """
+ rm = self.ec.get_resource(guid)
+ if rm.get_rtype() not in self._authorized_connections:
+ return False
+ return True
+
+ def do_provision(self):
+ self.node.mkdir(self.run_home)
+
+ self.check_sliver_ovs()
+ self.servers_on()
+ self.create_bridge()
+ self.assign_controller()
+ self.ovs_status()
+
+ self.set_provisioned()
+
+ def do_deploy(self):
+ """ Deploy the OVS Switch : Turn on the server, create the bridges
+ and assign the controller
+ """
+
+ if not self.node or self.node.state < ResourceState.READY:
+ self.debug("---- RESCHEDULING DEPLOY ---- node state %s " % self.node.state)
+ self.ec.schedule(self.reschedule_delay, self.deploy)
+ else:
+ self.do_discover()
+ self.do_provision()
+
+ self.set_ready()
+
+ def check_sliver_ovs(self):
+ """ Check if sliver-ovs exists. If it does not exist, the execution is stopped
+ """
+ command = "compgen -c | grep sliver-ovs"
+ shfile = os.path.join(self.app_home, "check_ovs_cmd.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo = True,
+ pidfile="check_ovs_cmd_pidfile",
+ ecodefile="check_ovs_cmd_exitcode",
+ stdout="check_ovs_cmd_stdout",
+ stderr="check_ovs_cmd_stderr")
+ except RuntimeError:
+ msg = "Command sliver-ovs does not exist on the VM"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ def servers_on(self):
+ """ Start the openvswitch servers and check it
+ """
+ # Make sure the server is not running
+ command = "sliver-ovs del-bridge %s; sliver-ovs stop" % self.get('bridge_name')
+ shfile = os.path.join(self.app_home, "clean.sh")
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ raise_on_error=False,
+ pidfile="clean_pidfile",
+ ecodefile="clean_exitcode",
+ stdout="clean_stdout",
+ stderr="clean_stderr")
+
+ # start the server
+ command = "sliver-ovs start"
+ shfile = os.path.join(self.app_home, "start.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="start_pidfile",
+ ecodefile="start_exitcode",
+ stdout="start_stdout",
+ stderr="start_stderr")
+ except RuntimeError:
+ msg = "Failed to start ovs-server on VM"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ command = "ps -A | grep ovsdb-server"
+ shfile = os.path.join(self.app_home, "ovsdb_status.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="ovsdb_status_pidfile",
+ ecodefile="ovsdb_status_exitcode",
+ stdout="ovsdb_status_stdout",
+ stderr="ovsdb_status_stderr")
+ except RuntimeError:
+ msg = "ovsdb-server not running on VM"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ self.info("Server OVS Started...")
+
+ def create_bridge(self):
+ """ Create the bridge/switch and check error during SSH connection
+ """
+ # TODO: Check if previous bridge exist and delete them. Use ovs-vsctl list-br
+ # TODO: Add check for virtual_ip belonging to vsys_tag
+ if not (self.get("bridge_name") and self.get("virtual_ip_pref")):
+ msg = "No assignment in one or both attributes"
+ self.error(msg)
+ raise AttributeError(msg)
+
+ command = "sliver-ovs create-bridge '%s' '%s'" % (
+ self.get("bridge_name"),
+ self.get("virtual_ip_pref"))
+
+ shfile = os.path.join(self.app_home, "bridge_create.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="bridge_create_pidfile",
+ ecodefile="bridge_create_exitcode",
+ stdout="bridge_create_stdout",
+ stderr="bridge_create_stderr")
+ except RuntimeError:
+ msg = "No such pltap netdev\novs-appctl: ovs-vswitchd: server returned an error"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ self.info(" Bridge %s Created and Assigned to %s" %\
+ (self.get("bridge_name"), self.get("virtual_ip_pref")) )
+
+ def assign_controller(self):
+ """ Set the controller IP
+ """
+
+ if not (self.get("controller_ip") and self.get("controller_port")):
+ return
+
+ """
+ if not (self.get("controller_ip") and self.get("controller_port")):
+ msg = "No assignment in one or both attributes"
+ self.error(msg)
+ raise AttributeError, msg
+ """
+ command = "ovs-vsctl set-controller %s tcp:%s:%s" % \
+ (self.get("bridge_name"),
+ self.get("controller_ip"),
+ self.get("controller_port"))
+
+ shfile = os.path.join(self.app_home, "set_controller.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="set_controller_pidfile",
+ ecodefile="set_controller_exitcode",
+ stdout="set_controller_stdout",
+ stderr="set_controller_stderr")
+ except RuntimeError:
+ msg = "SSH connection in the method assign_controller"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ self.info("Controller assigned to the bridge %s" % self.get("bridge_name"))
+
+ def ovs_status(self):
+ """ Print the status of the bridge
+ """
+ command = "sliver-ovs show | tail -n +2"
+ shfile = os.path.join(self.app_home, "ovs_status.sh")
+ try:
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="ovs_status_pidfile",
+ ecodefile="ovs_status_exitcode",
+ stdout="ovs_status_stdout",
+ stderr="ovs_status_stderr")
+ except RuntimeError:
+ msg = "Error when checking the status of the OpenVswitch"
+ self.debug(msg)
+ raise RuntimeError(msg)
+
+ def do_release(self):
+ """ Delete the bridge and close the server.
+
+ .. note : It need to wait for the others RM (OVSPort and OVSTunnel)
+ to be released before releasing itself
+
+ """
+
+ from nepi.resources.planetlab.openvswitch.ovsport import PlanetlabOVSPort
+ rms = self.get_connected(PlanetlabOVSPort.get_rtype())
+
+ for rm in rms:
+ if rm.state < ResourceState.RELEASED:
+ self.ec.schedule(self.reschedule_delay, self.release)
+ return
+
+ msg = "Deleting the bridge %s" % self.get('bridge_name')
+ self.info(msg)
+
+ command = "sliver-ovs del-bridge %s; sliver-ovs stop" % self.get('bridge_name')
+ shfile = os.path.join(self.app_home, "stop.sh")
+
+ self.node.run_and_wait(command, self.run_home,
+ shfile=shfile,
+ sudo=True,
+ pidfile="stop_pidfile",
+ ecodefile="stop_exitcode",
+ stdout="stop_stdout",
+ stderr="stop_stderr")
+
+ super(PlanetlabOVSSwitch, self).do_release()
+
git://git.onelab.eu / nepi.git / blobdiff