X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2Fvim-emu.git;a=blobdiff_plain;f=emuvim%2Fdcemulator%2Fnet.py;h=7b238b8cdcff82d6f0951e50500ae6696ddd9348;hp=478c587dda2440e530eec3dae0a70daf9b945682;hb=a29c50cffd72de2f5533bb4f294adfe9a0f655d5;hpb=a2ad9ffafff966fbfc17ba1d5782a8ef90807428 diff --git a/emuvim/dcemulator/net.py b/emuvim/dcemulator/net.py old mode 100644 new mode 100755 index 478c587..7b238b8 --- a/emuvim/dcemulator/net.py +++ b/emuvim/dcemulator/net.py @@ -4,55 +4,44 @@ Distributed Cloud Emulator (dcemulator) """ import logging -from mininet.net import Mininet +from mininet.net import Dockernet from mininet.node import Controller, OVSKernelSwitch, Switch, Docker, Host from mininet.cli import CLI from mininet.log import setLogLevel, info from mininet.link import TCLink, Link -from node import Datacenter +from node import Datacenter, EmulatorCompute -class DCNetwork(object): +class DCNetwork(Dockernet): """ - Wraps the original Mininet class and provides + Wraps the original Mininet/Dockernet class and provides methods to add data centers, switches, etc. This class is used by topology definition scripts. """ - def __init__(self): + def __init__(self, **kwargs): self.dcs = {} - self.switches = {} - self.links = [] - # create a Mininet/Dockernet network - setLogLevel('info') # set Mininet loglevel - self.mnet = Mininet(controller=Controller, switch=OVSKernelSwitch) - self.mnet.addController('c0') + # call original Docker.__init__ and setup default controller + Dockernet.__init__( + self, controller=Controller, switch=OVSKernelSwitch, **kwargs) + self.addController('c0') - def addDatacenter(self, name): + def addDatacenter(self, label, metadata={}): """ Create and add a logical cloud data center to the network. """ - if name in self.dcs: - raise Exception("Data center name already exists: %s" % name) - dc = Datacenter(name) + if label in self.dcs: + raise Exception("Data center label already exists: %s" % label) + dc = Datacenter(label, metadata=metadata) dc.net = self # set reference to network - self.dcs[name] = dc + self.dcs[label] = dc dc.create() # finally create the data center in our Mininet instance - logging.info("added data center: %s" % name) + logging.info("added data center: %s" % label) return dc - def addSwitch(self, name): - """ - We can also add additional SDN switches between data centers. - """ - s = self.mnet.addSwitch(name) - self.switches[name] = s - logging.info("added switch: %s" % name) - return s - def addLink(self, node1, node2, **params): """ Able to handle Datacenter objects as link @@ -65,48 +54,51 @@ class DCNetwork(object): if isinstance( node1, basestring ): if node1 in self.dcs: node1 = self.dcs[node1].switch - elif node1 in self.switches: - node1 = self.switches[node1] if isinstance( node1, Datacenter ): node1 = node1.switch # ensure type of node2 if isinstance( node2, basestring ): if node2 in self.dcs: node2 = self.dcs[node2].switch - elif node2 in self.switches: - node2 = self.switches[node2] if isinstance( node2, Datacenter ): node2 = node2.switch - return self.mnet.addLink(node1, node2, **params) # TODO we need TCLinks with user defined performance here - - def removeLink(self, link=None, node1=None, node2=None): + # try to give containers a default IP + if isinstance( node1, Docker ): + if not "params1" in params: + params["params1"] = {} + if not "ip" in params["params1"]: + params["params1"]["ip"] = self.getNextIp() + if isinstance( node2, Docker ): + if not "params2" in params: + params["params2"] = {} + if not "ip" in params["params2"]: + params["params2"]["ip"] = self.getNextIp() + + return Dockernet.addLink(self, node1, node2, **params) # TODO we need TCLinks with user defined performance here + + def addDocker( self, label, **params ): """ - Removes a link. Can either be specified by link object, - or the nodes the link connects. Wraps Dockernet method. + Wrapper for addDocker method to use custom container class. """ - logging.debug("removeLink: n1=%s n2=%s" % (str(node1), str(node2))) - return self.mnet.removeLink(link=link, node1=node1, node2=node2) + return Dockernet.addDocker(self, label, cls=EmulatorCompute, **params) - def addDocker( self, name, **params ): + def getAllContainers(self): """ - Wrapper for addDocker method provided by Dockernet. + Returns a list with all containers within all data centers. """ - return self.mnet.addDocker( name, **params) - - def removeDocker( self, name, **params): - """ - Wrapper for removeHost. Just to be complete. - """ - return self.mnet.removeDocker(name, **params) + all_containers = [] + for dc in self.dcs.itervalues(): + all_containers += dc.listCompute() + return all_containers def start(self): # start for dc in self.dcs.itervalues(): dc.start() - self.mnet.start() + Dockernet.start(self) def stop(self): - self.mnet.stop() + Dockernet.stop(self) def CLI(self): - CLI(self.mnet) + CLI(self)