+"""
+Distributed Cloud Emulator (dcemulator)
+(c) 2015 by Manuel Peuster <manuel.peuster@upb.de>
+"""
+
+import logging
+import threading
+import zerorpc
+
+logging.basicConfig(level=logging.INFO)
+
+
+class ZeroRpcApiEndpoint(object):
+ """
+ Simple API endpoint that offers a zerorpc-based
+ interface. This interface will be used by the
+ default command line client.
+ It can be used as a reference to implement
+ REST interfaces providing the same semantics,
+ like e.g. OpenStack compute API.
+ """
+
+ def __init__(self, listenip, port):
+ self.dcs = {}
+ self.ip = listenip
+ self.port = port
+ logging.debug("Created API endpoint %s(%s:%d)" % (
+ self.__class__.__name__, self.ip, self.port))
+
+ def connectDatacenter(self, dc):
+ self.dcs[dc.label] = dc
+ logging.info("Connected DC(%s) to API endpoint %s(%s:%d)" % (
+ dc.label, self.__class__.__name__, self.ip, self.port))
+
+ def start(self):
+ thread = threading.Thread(target=self._api_server_thread, args=())
+ thread.daemon = True
+ thread.start()
+ logging.debug("Started API endpoint %s(%s:%d)" % (
+ self.__class__.__name__, self.ip, self.port))
+
+ def _api_server_thread(self):
+ s = zerorpc.Server(MultiDatacenterApi(self.dcs))
+ s.bind("tcp://%s:%d" % (self.ip, self.port))
+ s.run()
+
+
+class MultiDatacenterApi(object):
+ """
+ Just pass through the corresponding request to the
+ selected data center. Do not implement provisioning
+ logic here because will will have multiple API
+ endpoint implementations at the end.
+ """
+
+ def __init__(self, dcs):
+ self.dcs = dcs
+
+ def compute_action_start(self, dc_label, compute_name, image, command, network):
+ """
+ Start a new compute instance: A docker container
+ :param dc_label: name of the DC
+ :param compute_name: compute container name
+ :param image: image name
+ :param command: command to execute
+ :param network:
+ :return: networks list({"ip": "10.0.0.254/8"}, {"ip": "11.0.0.254/24"})
+ """
+ # TODO what to return UUID / given name / internal name ?
+ logging.debug("RPC CALL: compute start")
+ try:
+ c = self.dcs.get(dc_label).startCompute(
+ compute_name, image=image, command=command, network=network)
+ return str(c.name)
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
+
+ def compute_action_stop(self, dc_label, compute_name):
+ logging.debug("RPC CALL: compute stop")
+ try:
+ return self.dcs.get(dc_label).stopCompute(compute_name)
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
+
+ def compute_list(self, dc_label):
+ logging.debug("RPC CALL: compute list")
+ try:
+ if dc_label is None:
+ # return list with all compute nodes in all DCs
+ all_containers = []
+ for dc in self.dcs.itervalues():
+ all_containers += dc.listCompute()
+ return [(c.name, c.getStatus())
+ for c in all_containers]
+ else:
+ # return list of compute nodes for specified DC
+ return [(c.name, c.getStatus())
+ for c in self.dcs.get(dc_label).listCompute()]
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
+
+ def compute_status(self, dc_label, compute_name):
+ logging.debug("RPC CALL: compute status")
+ try:
+ return self.dcs.get(
+ dc_label).containers.get(compute_name).getStatus()
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
+
+ def datacenter_list(self):
+ logging.debug("RPC CALL: datacenter list")
+ try:
+ return [d.getStatus() for d in self.dcs.itervalues()]
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
+
+ def datacenter_status(self, dc_label):
+ logging.debug("RPC CALL: datacenter status")
+ try:
+ return self.dcs.get(dc_label).getStatus()
+ except Exception as ex:
+ logging.exception("RPC error.")
+ return ex.message
projects / osm / vim-emu.git / commitdiff