--- /dev/null
+
+#
+# Copyright 2016 RIFT.IO Inc
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+import asyncio
+import sys
+
+import gi
+gi.require_version('RwDts', '1.0')
+gi.require_version('RwYang', '1.0')
+gi.require_version('RwResourceMgrYang', '1.0')
+gi.require_version('RwLaunchpadYang', '1.0')
+gi.require_version('RwcalYang', '1.0')
+from gi.repository import (
+ RwDts as rwdts,
+ RwYang,
+ RwResourceMgrYang,
+ RwLaunchpadYang,
+ RwcalYang,
+)
+
+from gi.repository.RwTypes import RwStatus
+import rift.tasklets
+
+if sys.version_info < (3, 4, 4):
+ asyncio.ensure_future = asyncio.async
+
+
+class ResourceMgrEvent(object):
+ VDU_REQUEST_XPATH = "D,/rw-resource-mgr:resource-mgmt/vdu-event/vdu-event-data"
+ VLINK_REQUEST_XPATH = "D,/rw-resource-mgr:resource-mgmt/vlink-event/vlink-event-data"
+
+ def __init__(self, dts, log, loop, parent):
+ self._log = log
+ self._dts = dts
+ self._loop = loop
+ self._parent = parent
+ self._vdu_reg = None
+ self._link_reg = None
+
+ self._vdu_reg_event = asyncio.Event(loop=self._loop)
+ self._link_reg_event = asyncio.Event(loop=self._loop)
+
+ @asyncio.coroutine
+ def wait_ready(self, timeout=5):
+ self._log.debug("Waiting for all request registrations to become ready.")
+ yield from asyncio.wait([self._link_reg_event.wait(), self._vdu_reg_event.wait()],
+ timeout=timeout, loop=self._loop)
+
+ def create_record_dts(self, regh, xact, path, msg):
+ """
+ Create a record in DTS with path and message
+ """
+ self._log.debug("Creating Resource Record xact = %s, %s:%s",
+ xact, path, msg)
+ regh.create_element(path, msg)
+
+ def delete_record_dts(self, regh, xact, path):
+ """
+ Delete a VNFR record in DTS with path and message
+ """
+ self._log.debug("Deleting Resource Record xact = %s, %s",
+ xact, path)
+ regh.delete_element(path)
+
+ @asyncio.coroutine
+ def register(self):
+ @asyncio.coroutine
+ def onlink_event(dts, g_reg, xact, xact_event, scratch_data):
+ @asyncio.coroutine
+ def instantiate_realloc_vn(link):
+ """Re-populate the virtual link information after restart
+
+ Arguments:
+ vlink
+
+ """
+ # wait for 3 seconds
+ yield from asyncio.sleep(3, loop=self._loop)
+
+ response_info = yield from self._parent.reallocate_virtual_network(link.event_id,
+ link.cloud_account,
+ link.request_info, link.resource_info,
+ )
+ if (xact_event == rwdts.MemberEvent.INSTALL):
+ link_cfg = self._link_reg.elements
+ for link in link_cfg:
+ self._loop.create_task(instantiate_realloc_vn(link))
+ return rwdts.MemberRspCode.ACTION_OK
+
+ @asyncio.coroutine
+ def onvdu_event(dts, g_reg, xact, xact_event, scratch_data):
+ @asyncio.coroutine
+ def instantiate_realloc_vdu(vdu):
+ """Re-populate the VDU information after restart
+
+ Arguments:
+ vdu
+
+ """
+ # wait for 3 seconds
+ yield from asyncio.sleep(3, loop=self._loop)
+
+ response_info = yield from self._parent.allocate_virtual_compute(vdu.event_id,
+ vdu.cloud_account,
+ vdu.request_info
+ )
+ if (xact_event == rwdts.MemberEvent.INSTALL):
+ vdu_cfg = self._vdu_reg.elements
+ for vdu in vdu_cfg:
+ self._loop.create_task(instantiate_realloc_vdu(vdu))
+ return rwdts.MemberRspCode.ACTION_OK
+
+ def on_link_request_commit(xact_info):
+ """ The transaction has been committed """
+ self._log.debug("Received link request commit (xact_info: %s)", xact_info)
+ return rwdts.MemberRspCode.ACTION_OK
+
+ @asyncio.coroutine
+ def on_link_request_prepare(xact_info, action, ks_path, request_msg):
+ self._log.debug("Received virtual-link on_prepare callback (xact_info: %s, action: %s): %s",
+ xact_info, action, request_msg)
+
+ response_info = None
+ response_xpath = ks_path.to_xpath(RwResourceMgrYang.get_schema()) + "/resource-info"
+
+ schema = RwResourceMgrYang.VirtualLinkEventData().schema()
+ pathentry = schema.keyspec_to_entry(ks_path)
+
+ if action == rwdts.QueryAction.CREATE:
+ try:
+ response_info = yield from self._parent.allocate_virtual_network(pathentry.key00.event_id,
+ request_msg.cloud_account,
+ request_msg.request_info)
+ except Exception as e:
+ self._log.error("Encountered exception: %s while creating virtual network", str(e))
+ self._log.exception(e)
+ response_info = RwResourceMgrYang.VirtualLinkEventData_ResourceInfo()
+ response_info.resource_state = 'failed'
+ response_info.resource_errors = str(e)
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ else:
+ request_msg.resource_info = response_info
+ self.create_record_dts(self._link_reg, None, ks_path.to_xpath(RwResourceMgrYang.get_schema()), request_msg)
+ elif action == rwdts.QueryAction.DELETE:
+ yield from self._parent.release_virtual_network(pathentry.key00.event_id)
+ self.delete_record_dts(self._link_reg, None, ks_path.to_xpath(RwResourceMgrYang.get_schema()))
+ elif action == rwdts.QueryAction.READ:
+ response_info = yield from self._parent.read_virtual_network_info(pathentry.key00.event_id)
+ else:
+ raise ValueError("Only read/create/delete actions available. Received action: %s" %(action))
+
+ self._log.debug("Responding with VirtualLinkInfo at xpath %s: %s.",
+ response_xpath, response_info)
+
+ xact_info.respond_xpath(rwdts.XactRspCode.ACK, response_xpath, response_info)
+
+
+ def on_vdu_request_commit(xact_info):
+ """ The transaction has been committed """
+ self._log.debug("Received vdu request commit (xact_info: %s)", xact_info)
+ return rwdts.MemberRspCode.ACTION_OK
+
+ def monitor_vdu_state(response_xpath, pathentry):
+ self._log.info("Initiating VDU state monitoring for xpath: %s ", response_xpath)
+ loop_cnt = 180
+ for i in range(loop_cnt):
+ self._log.debug("VDU state monitoring for xpath: %s. Sleeping for 1 second", response_xpath)
+ yield from asyncio.sleep(1, loop = self._loop)
+ try:
+ response_info = yield from self._parent.read_virtual_compute_info(pathentry.key00.event_id)
+ except Exception as e:
+ self._log.info("VDU state monitoring: Received exception %s in VDU state monitoring for %s. Aborting monitoring",
+ str(e),response_xpath)
+ response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
+ response_info.resource_state = 'failed'
+ response_info.resource_errors = str(e)
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ else:
+ if response_info.resource_state == 'active' or response_info.resource_state == 'failed':
+ self._log.info("VDU state monitoring: VDU reached terminal state. Publishing VDU info: %s at path: %s",
+ response_info, response_xpath)
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ return
+ else:
+ ### End of loop. This is only possible if VDU did not reach active state
+ err_msg = "VDU state monitoring: VDU at xpath :{} did not reached active state in {} seconds. Aborting monitoring".format(response_xpath, loop_cnt)
+ self._log.info(err_msg)
+ response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
+ response_info.resource_state = 'failed'
+ response_info.resource_errors = err_msg
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ return
+
+ def allocate_vdu_task(ks_path, event_id, cloud_account, request_msg):
+ response_xpath = ks_path.to_xpath(RwResourceMgrYang.get_schema()) + "/resource-info"
+ schema = RwResourceMgrYang.VDUEventData().schema()
+ pathentry = schema.keyspec_to_entry(ks_path)
+ try:
+ response_info = yield from self._parent.allocate_virtual_compute(event_id,
+ cloud_account,
+ request_msg,)
+ except Exception as e:
+ self._log.error("Encountered exception : %s while creating virtual compute", str(e))
+ response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
+ response_info.resource_state = 'failed'
+ response_info.resource_errors = str(e)
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ else:
+ if response_info.resource_state == 'failed' or response_info.resource_state == 'active' :
+ self._log.info("Virtual compute create task completed. Publishing VDU info: %s at path: %s",
+ response_info, response_xpath)
+ yield from self._dts.query_update(response_xpath,
+ rwdts.XactFlag.ADVISE,
+ response_info)
+ else:
+ asyncio.ensure_future(monitor_vdu_state(response_xpath, pathentry),
+ loop = self._loop)
+
+
+ @asyncio.coroutine
+ def on_vdu_request_prepare(xact_info, action, ks_path, request_msg):
+ self._log.debug("Received vdu on_prepare callback (xact_info: %s, action: %s): %s",
+ xact_info, action, request_msg)
+ response_xpath = ks_path.to_xpath(RwResourceMgrYang.get_schema()) + "/resource-info"
+ schema = RwResourceMgrYang.VDUEventData().schema()
+ pathentry = schema.keyspec_to_entry(ks_path)
+
+ if action == rwdts.QueryAction.CREATE:
+ response_info = RwResourceMgrYang.VDUEventData_ResourceInfo()
+ response_info.resource_state = 'pending'
+ request_msg.resource_info = response_info
+ self.create_record_dts(self._vdu_reg,
+ None,
+ ks_path.to_xpath(RwResourceMgrYang.get_schema()),
+ request_msg)
+ asyncio.ensure_future(allocate_vdu_task(ks_path,
+ pathentry.key00.event_id,
+ request_msg.cloud_account,
+ request_msg.request_info),
+ loop = self._loop)
+ elif action == rwdts.QueryAction.DELETE:
+ response_info = None
+ yield from self._parent.release_virtual_compute(pathentry.key00.event_id)
+ self.delete_record_dts(self._vdu_reg, None, ks_path.to_xpath(RwResourceMgrYang.get_schema()))
+ elif action == rwdts.QueryAction.READ:
+ response_info = yield from self._parent.read_virtual_compute_info(pathentry.key00.event_id)
+ else:
+ raise ValueError("Only create/delete actions available. Received action: %s" %(action))
+
+ self._log.debug("Responding with VDUInfo at xpath %s: %s",
+ response_xpath, response_info)
+
+ xact_info.respond_xpath(rwdts.XactRspCode.ACK, response_xpath, response_info)
+
+
+ @asyncio.coroutine
+ def on_request_ready(registration, status):
+ self._log.debug("Got request ready event (registration: %s) (status: %s)",
+ registration, status)
+
+ if registration == self._link_reg:
+ self._link_reg_event.set()
+ elif registration == self._vdu_reg:
+ self._vdu_reg_event.set()
+ else:
+ self._log.error("Unknown registration ready event: %s", registration)
+
+ link_handlers = rift.tasklets.Group.Handler(on_event=onlink_event,)
+ with self._dts.group_create(handler=link_handlers) as link_group:
+ self._log.debug("Registering for Link Resource Request using xpath: %s",
+ ResourceMgrEvent.VLINK_REQUEST_XPATH)
+
+ self._link_reg = link_group.register(xpath=ResourceMgrEvent.VLINK_REQUEST_XPATH,
+ handler=rift.tasklets.DTS.RegistrationHandler(on_ready=on_request_ready,
+ on_commit=on_link_request_commit,
+ on_prepare=on_link_request_prepare),
+ flags=rwdts.Flag.PUBLISHER | rwdts.Flag.DATASTORE,)
+
+ vdu_handlers = rift.tasklets.Group.Handler(on_event=onvdu_event, )
+ with self._dts.group_create(handler=vdu_handlers) as vdu_group:
+
+ self._log.debug("Registering for VDU Resource Request using xpath: %s",
+ ResourceMgrEvent.VDU_REQUEST_XPATH)
+
+ self._vdu_reg = vdu_group.register(xpath=ResourceMgrEvent.VDU_REQUEST_XPATH,
+ handler=rift.tasklets.DTS.RegistrationHandler(on_ready=on_request_ready,
+ on_commit=on_vdu_request_commit,
+ on_prepare=on_vdu_request_prepare),
+ flags=rwdts.Flag.PUBLISHER | rwdts.Flag.DATASTORE,)
+
projects / osm / SO.git / blobdiff