vnfr = yield from self.create_vnf_record(vnfd_msg, const_vnfd_msg, cloud_account_name, om_datacenter_name, group_name, index)
scale_instance.add_vnfr(vnfr)
vnfrs.append(vnfr)
-
return vnfrs
@asyncio.coroutine
format(group.name, index))
scale_instance.operational_status = "failed"
else:
- yield from self.instantiate_vnfs(vnfrs)
+ yield from self.instantiate_vnfs(vnfrs, scaleout=True)
+
except Exception as e:
self._log.exception("Failed to begin instantiatiation of vnfs for scale group {}: {}".
# Fetch the VNFD associated with this VNF
placement_groups = self.get_placement_groups(vnfd_msg, const_vnfd)
self._log.info("Cloud Account for VNF %d is %s",const_vnfd.member_vnf_index,cloud_account_name)
- self._log.info("Launching VNF: %s (Member Index: %s) in NSD plancement Groups: %s, restart mode self.restart_mode %s",
+ self._log.info("Launching VNF: %s (Member Index: %s) in NSD plancement Groups: %s",
vnfd_msg.name,
const_vnfd.member_vnf_index,
- [ group.name for group in placement_groups],
- self.restart_mode)
+ [ group.name for group in placement_groups])
vnfr = yield from VirtualNetworkFunctionRecord.create_record(self._dts,
self._log,
self._loop,
return vnfr
@asyncio.coroutine
- def instantiate_vnfs(self, vnfrs):
+ def instantiate_vnfs(self, vnfrs, scaleout=False):
"""
This function instantiates VNFs for every VNF in this Network Service
"""
self._log.debug("Instantiating %u VNFs in NS %s", len(vnfrs), self.id)
for vnf in vnfrs:
self._log.debug("Instantiating VNF: %s in NS %s", vnf, self.id)
- yield from self.nsm_plugin.instantiate_vnf(self, vnf)
+ yield from self.nsm_plugin.instantiate_vnf(self, vnf,scaleout)
@asyncio.coroutine
def instantiate_vnffgs(self):
def on_instantiate_done(fut):
# If the do_instantiate fails, then publish NSR with failed result
- if fut.exception() is not None:
- self._log.error("NSR instantiation failed for NSR id %s: %s", self.id, str(fut.exception()))
- self._loop.create_task(self.instantiation_failed(failed_reason=str(fut.exception())))
+ e = fut.exception()
+ if e is not None:
+ import traceback, sys
+ print(traceback.format_exception(None,e, e.__traceback__), file=sys.stderr, flush=True)
+ self._log.error("NSR instantiation failed for NSR id %s: %s", self.id, str(e))
+ self._loop.create_task(self.instantiation_failed(failed_reason=str(e)))
instantiate_task = self._loop.create_task(do_instantiate())
instantiate_task.add_done_callback(on_instantiate_done)
raise NsrVlUpdateError("NS config NSD should have atleast 1 VLD defined")
if msg.has_field("scaling_group"):
+ self._log.debug("ScaleMsg %s", msg)
+ self._log.debug("NSSCALINGSTATE %s", nsr.state)
if nsr.state != NetworkServiceRecordState.RUNNING:
raise ScalingOperationError("Unable to perform scaling action when NS is not in running state")
VnfrDtsHandler(dts, log, loop, self),
NsdRefCountDtsHandler(dts, log, loop, self),
NsrDtsHandler(dts, log, loop, self),
+ ScalingRpcHandler(log, dts, loop, self.scale_rpc_callback),
NsrRpcDtsHandler(dts,log,loop,self),
self._vnfd_dts_handler,
self.cfgmgr_obj,
self._loop.create_task(nsr.delete_scale_group_instance(scale_group_name, instance_id))
+ def scale_rpc_callback(self, xact, msg, action):
+ """Callback handler for RPC calls
+ Args:
+ xact : Transaction Handler
+ msg : RPC input
+ action : Scaling Action
+ """
+ ScalingGroupInstance = NsrYang.YangData_Nsr_NsInstanceConfig_Nsr_ScalingGroup_Instance
+ ScalingGroup = NsrYang.YangData_Nsr_NsInstanceConfig_Nsr_ScalingGroup
+
+ xpath = ('C,/nsr:ns-instance-config/nsr:nsr[nsr:id="{}"]').format(
+ msg.nsr_id_ref)
+ instance = ScalingGroupInstance.from_dict({"id": msg.instance_id})
+
+ @asyncio.coroutine
+ def get_nsr_scaling_group():
+ results = yield from self._dts.query_read(xpath, rwdts.XactFlag.MERGE)
+
+ for result in results:
+ res = yield from result
+ nsr_config = res.result
+
+ for scaling_group in nsr_config.scaling_group:
+ if scaling_group.scaling_group_name_ref == msg.scaling_group_name_ref:
+ break
+ else:
+ scaling_group = nsr_config.scaling_group.add()
+ scaling_group.scaling_group_name_ref = msg.scaling_group_name_ref
+
+ return (nsr_config, scaling_group)
+
+ @asyncio.coroutine
+ def update_config(nsr_config):
+ xml = self._ncclient.convert_to_xml(RwNsrYang, nsr_config)
+ xml = '<config xmlns:xc="urn:ietf:params:xml:ns:netconf:base:1.0">{}</config>'.format(xml)
+ yield from self._ncclient.connect()
+ yield from self._ncclient.manager.edit_config(target="running", config=xml, default_operation="replace")
+
+ @asyncio.coroutine
+ def scale_out():
+ nsr_config, scaling_group = yield from get_nsr_scaling_group()
+ scaling_group.instance.append(instance)
+ yield from update_config(nsr_config)
+
+ @asyncio.coroutine
+ def scale_in():
+ nsr_config, scaling_group = yield from get_nsr_scaling_group()
+ scaling_group.instance.remove(instance)
+ yield from update_config(nsr_config)
+
+ if action == ScalingRpcHandler.ACTION.SCALE_OUT:
+ self._loop.create_task(scale_out())
+ else:
+ self._loop.create_task(scale_in())
+
+ # Opdata based calls, disabled for now!
+ # if action == ScalingRpcHandler.ACTION.SCALE_OUT:
+ # self.scale_nsr_out(
+ # msg.nsr_id_ref,
+ # msg.scaling_group_name_ref,
+ # msg.instance_id,
+ # xact)
+ # else:
+ # self.scale_nsr_in(
+ # msg.nsr_id_ref,
+ # msg.scaling_group_name_ref,
+ # msg.instance_id)
+
def nsr_update_cfg(self, nsr_id, msg):
nsr = self._nsrs[nsr_id]
nsr.nsr_cfg_msg= msg
def create_nsr(self, nsr_msg, key_pairs=None,restart_mode=False):
""" Create an NSR instance """
+ self._log.debug("NSRMSG %s", nsr_msg)
if nsr_msg.id in self._nsrs:
msg = "NSR id %s already exists" % nsr_msg.id
self._log.error(msg)
raise NetworkServiceRecordError(msg)
- self._log.info("Create NetworkServiceRecord nsr id %s from nsd_id %s, restart mode %s",
+ self._log.info("Create NetworkServiceRecord nsr id %s from nsd_id %s",
nsr_msg.id,
- nsr_msg.nsd.id,
- restart_mode)
+ nsr_msg.nsd.id)
nsm_plugin = self._ro_plugin_selector.ro_plugin
sdn_account_name = self._cloud_account_handler.get_cloud_account_sdn_name(nsr_msg.cloud_account)
path = VirtualLinkRecord.vlr_xpath(vlr)
return (yield from self._vlr_pub_hdlr.delete(xact, path))
+
+class ScalingRpcHandler(mano_dts.DtsHandler):
+ """ The Network service Monitor DTS handler """
+ SCALE_IN_INPUT_XPATH = "I,/nsr:exec-scale-in"
+ SCALE_IN_OUTPUT_XPATH = "O,/nsr:exec-scale-in"
+
+ SCALE_OUT_INPUT_XPATH = "I,/nsr:exec-scale-out"
+ SCALE_OUT_OUTPUT_XPATH = "O,/nsr:exec-scale-out"
+
+ ACTION = Enum('ACTION', 'SCALE_IN SCALE_OUT')
+
+ def __init__(self, log, dts, loop, callback=None):
+ super().__init__(log, dts, loop)
+ self.callback = callback
+ self.last_instance_id = defaultdict(int)
+
+ @asyncio.coroutine
+ def register(self):
+
+ @asyncio.coroutine
+ def on_scale_in_prepare(xact_info, action, ks_path, msg):
+ assert action == rwdts.QueryAction.RPC
+
+ try:
+ if self.callback:
+ self.callback(xact_info.xact, msg, self.ACTION.SCALE_IN)
+
+ rpc_op = NsrYang.YangOutput_Nsr_ExecScaleIn.from_dict({
+ "instance_id": msg.instance_id})
+
+ xact_info.respond_xpath(
+ rwdts.XactRspCode.ACK,
+ self.__class__.SCALE_IN_OUTPUT_XPATH,
+ rpc_op)
+
+ except Exception as e:
+ self.log.exception(e)
+ xact_info.respond_xpath(
+ rwdts.XactRspCode.NACK,
+ self.__class__.SCALE_IN_OUTPUT_XPATH)
+
+ @asyncio.coroutine
+ def on_scale_out_prepare(xact_info, action, ks_path, msg):
+ assert action == rwdts.QueryAction.RPC
+
+ try:
+ scaling_group = msg.scaling_group_name_ref
+ if not msg.instance_id:
+ last_instance_id = self.last_instance_id[scale_group]
+ msg.instance_id = last_instance_id + 1
+ self.last_instance_id[scale_group] += 1
+
+ if self.callback:
+ self.callback(xact_info.xact, msg, self.ACTION.SCALE_OUT)
+
+ rpc_op = NsrYang.YangOutput_Nsr_ExecScaleOut.from_dict({
+ "instance_id": msg.instance_id})
+
+ xact_info.respond_xpath(
+ rwdts.XactRspCode.ACK,
+ self.__class__.SCALE_OUT_OUTPUT_XPATH,
+ rpc_op)
+
+ except Exception as e:
+ self.log.exception(e)
+ xact_info.respond_xpath(
+ rwdts.XactRspCode.NACK,
+ self.__class__.SCALE_OUT_OUTPUT_XPATH)
+
+ scale_in_hdl = rift.tasklets.DTS.RegistrationHandler(
+ on_prepare=on_scale_in_prepare)
+ scale_out_hdl = rift.tasklets.DTS.RegistrationHandler(
+ on_prepare=on_scale_out_prepare)
+
+ with self.dts.group_create() as group:
+ group.register(
+ xpath=self.__class__.SCALE_IN_INPUT_XPATH,
+ handler=scale_in_hdl,
+ flags=rwdts.Flag.PUBLISHER)
+ group.register(
+ xpath=self.__class__.SCALE_OUT_INPUT_XPATH,
+ handler=scale_out_hdl,
+ flags=rwdts.Flag.PUBLISHER)
+
+
class NsmTasklet(rift.tasklets.Tasklet):
"""
The network service manager tasklet
projects / osm / SO.git / blobdiff