X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=emuvim%2Fdcemulator%2Fnode.py;h=8612096585ec61193890c9ae66c77785110d5fbc;hb=HEAD;hp=6d615b5599938a0ac743acf9f2b16f3a9ee1f7f3;hpb=a47db03ce7574cd082d2a8c5a40c3ad352ff89fc;p=osm%2Fvim-emu.git diff --git a/emuvim/dcemulator/node.py b/emuvim/dcemulator/node.py deleted file mode 100644 index 6d615b5..0000000 --- a/emuvim/dcemulator/node.py +++ /dev/null @@ -1,142 +0,0 @@ -""" -Distributed Cloud Emulator (dcemulator) -(c) 2015 by Manuel Peuster -""" -from mininet.node import Docker -import logging - - -DCDPID_BASE = 1000 # start of switch dpid's used for data center switches - - -class EmulatorCompute(Docker): - """ - Emulator specific compute node class. - Inherits from Dockernet's Docker host class. - Represents a single container connected to a (logical) - data center. - We can add emulator specific helper functions to it. - """ - - def __init__( - self, name, dimage, **kwargs): - logging.debug("Create EmulatorCompute instance: %s" % name) - self.datacenter = None # pointer to current DC - - # call original Docker.__init__ - Docker.__init__(self, name, dimage, **kwargs) - - def getNetworkStatus(self): - """ - Helper method to receive information about the virtual networks - this compute instance is connected to. - """ - # format list of tuples (name, Ip, MAC, isUp, status) - return [(str(i), i.IP(), i.MAC(), i.isUp(), i.status()) - for i in self.intfList()] - - def getStatus(self): - """ - Helper method to receive information about this compute instance. - """ - status = {} - status["name"] = self.name - status["network"] = self.getNetworkStatus() - status["image"] = self.dimage - status["cpu_quota"] = self.cpu_quota - status["cpu_period"] = self.cpu_period - status["cpu_shares"] = self.cpu_shares - status["cpuset"] = self.cpuset - status["mem_limit"] = self.mem_limit - status["memswap_limit"] = self.memswap_limit - status["state"] = self.dcli.inspect_container(self.dc)["State"] - status["id"] = self.dcli.inspect_container(self.dc)["Id"] - status["datacenter"] = (None if self.datacenter is None - else self.datacenter.label) - return status - - -class Datacenter(object): - """ - Represents a logical data center to which compute resources - (Docker containers) can be added at runtime. - - Will also implement resource bookkeeping in later versions. - """ - - DC_COUNTER = 1 - - def __init__(self, label): - self.net = None # DCNetwork to which we belong - # each node (DC) has a short internal name used by Mininet - # this is caused by Mininets naming limitations for swtiches etc. - self.name = "dc%d" % Datacenter.DC_COUNTER - Datacenter.DC_COUNTER += 1 - self.label = label # use this for user defined names - self.switch = None # first prototype assumes one "bigswitch" per DC - self.containers = {} # keep track of running containers - - def _get_next_dc_dpid(self): - global DCDPID_BASE - DCDPID_BASE += 1 - return DCDPID_BASE - - def create(self): - """ - Each data center is represented by a single switch to which - compute resources can be connected at run time. - - TODO: This will be changed in the future to support multiple networks - per data center - """ - self.switch = self.net.addSwitch( - "%s.s1" % self.name, dpid=hex(self._get_next_dc_dpid())[2:]) - logging.debug("created data center switch: %s" % str(self.switch)) - - def start(self): - pass - - def startCompute(self, name, image=None, network=None): - """ - Create a new container as compute resource and connect it to this - data center. - - TODO: This interface will change to support multiple networks to which - a single container can be connected. - """ - assert name is not None - # no duplications - if name in [c.name for c in self.net.getAllContainers()]: - raise Exception("Container with name %s already exists." % name) - # set default parameter - if image is None: - image = "ubuntu" - if network is None: - network = {} # {"ip": "10.0.0.254/8"} - # create the container and connect it to the given network - d = self.net.addDocker("%s" % (name), dimage=image) - self.net.addLink(d, self.switch, params1=network) - # do bookkeeping - self.containers[name] = d - d.datacenter = self - return d # we might use UUIDs for naming later on - - def stopCompute(self, name): - """ - Stop and remove a container from this data center. - """ - assert name is not None - if name not in self.containers: - raise Exception("Container with name %s not found." % name) - self.net.removeLink( - link=None, node1=self.containers[name], node2=self.switch) - self.net.removeDocker("%s" % (name)) - del self.containers[name] - return True - - def listCompute(self): - """ - Return a list of all running containers assigned to this - data center. - """ - return list(self.containers.itervalues())