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# pylint: disable=protected-access, too-many-lines |
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"""Main module of kytos/mef_eline Kytos Network Application. |
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NApp to provision circuits from user request. |
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""" |
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import pathlib |
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import time |
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import traceback |
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from collections import defaultdict |
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from contextlib import ExitStack |
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from copy import deepcopy |
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from threading import Lock |
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from typing import Optional |
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1 |
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from pydantic import ValidationError |
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1 |
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from kytos.core import KytosNApp, log, rest |
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from kytos.core.events import KytosEvent |
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from kytos.core.exceptions import KytosTagError |
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from kytos.core.helpers import (alisten_to, listen_to, load_spec, now, |
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validate_openapi) |
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from kytos.core.interface import TAG, UNI, TAGRange |
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from kytos.core.link import Link |
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from kytos.core.rest_api import (HTTPException, JSONResponse, Request, |
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get_json_or_400) |
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from kytos.core.tag_ranges import get_tag_ranges |
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from napps.kytos.mef_eline import controllers, settings |
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from napps.kytos.mef_eline.exceptions import (DisabledSwitch, |
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DuplicatedNoTagUNI, InvalidPath) |
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from napps.kytos.mef_eline.models import (EVC, DynamicPathManager, EVCDeploy, |
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Path) |
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from napps.kytos.mef_eline.scheduler import CircuitSchedule, Scheduler |
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from napps.kytos.mef_eline.utils import (aemit_event, check_disabled_component, |
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emit_event, get_vlan_tags_and_masks, |
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map_evc_event_content, |
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merge_flow_dicts, prepare_delete_flow, |
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send_flow_mods_event) |
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# pylint: disable=too-many-public-methods |
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class Main(KytosNApp): |
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"""Main class of amlight/mef_eline NApp. |
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This class is the entry point for this napp. |
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""" |
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spec = load_spec(pathlib.Path(__file__).parent / "openapi.yml") |
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1 |
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def setup(self): |
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"""Replace the '__init__' method for the KytosNApp subclass. |
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The setup method is automatically called by the controller when your |
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application is loaded. |
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So, if you have any setup routine, insert it here. |
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""" |
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# object used to scheduler circuit events |
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self.sched = Scheduler() |
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# object to save and load circuits |
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self.mongo_controller = self.get_eline_controller() |
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self.mongo_controller.bootstrap_indexes() |
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# set the controller that will manager the dynamic paths |
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DynamicPathManager.set_controller(self.controller) |
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# dictionary of EVCs created. It acts as a circuit buffer. |
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# Every create/update/delete must be synced to mongodb. |
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self.circuits = {} |
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1 |
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self._intf_events = defaultdict(dict) |
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self._lock_interfaces = defaultdict(Lock) |
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self.table_group = {"epl": 0, "evpl": 0} |
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self._lock = Lock() |
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self.execute_as_loop(settings.DEPLOY_EVCS_INTERVAL) |
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self.load_all_evcs() |
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self._topology_updated_at = None |
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1 |
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def get_evcs_by_svc_level(self, enable_filter: bool = True) -> list[EVC]: |
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"""Get circuits sorted by desc service level and asc creation_time. |
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In the future, as more ops are offloaded it should be get from the DB. |
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""" |
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if enable_filter: |
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return sorted( |
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[circuit for circuit in self.circuits.values() |
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if circuit.is_enabled()], |
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key=lambda x: (-x.service_level, x.creation_time), |
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1 |
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) |
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return sorted(self.circuits.values(), |
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key=lambda x: (-x.service_level, x.creation_time)) |
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@staticmethod |
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def get_eline_controller(): |
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"""Return the ELineController instance.""" |
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return controllers.ELineController() |
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1 |
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def execute(self): |
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"""Execute once when the napp is running.""" |
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if self._lock.locked(): |
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return |
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log.debug("Starting consistency routine") |
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with self._lock: |
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self.execute_consistency() |
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log.debug("Finished consistency routine") |
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def should_be_checked(self, circuit): |
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"Verify if the circuit meets the necessary conditions to be checked" |
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# pylint: disable=too-many-boolean-expressions |
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if ( |
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circuit.is_enabled() |
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and not circuit.is_active() |
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and not circuit.lock.locked() |
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and not circuit.has_recent_removed_flow() |
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and not circuit.is_recent_updated() |
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and circuit.are_unis_active(self.controller.switches) |
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# if a inter-switch EVC does not have current_path, it does not |
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# make sense to run sdntrace on it |
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and (circuit.is_intra_switch() or circuit.current_path) |
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): |
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return True |
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return False |
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def execute_consistency(self): |
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"""Execute consistency routine.""" |
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circuits_to_check = [] |
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for circuit in self.get_evcs_by_svc_level(enable_filter=False): |
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if self.should_be_checked(circuit): |
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circuits_to_check.append(circuit) |
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circuit.try_setup_failover_path() |
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circuits_checked = EVCDeploy.check_list_traces(circuits_to_check) |
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for circuit in circuits_to_check: |
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is_checked = circuits_checked.get(circuit.id) |
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if is_checked: |
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circuit.execution_rounds = 0 |
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log.info(f"{circuit} enabled but inactive - activating") |
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with circuit.lock: |
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circuit.activate() |
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circuit.sync() |
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else: |
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circuit.execution_rounds += 1 |
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1 |
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if circuit.execution_rounds > settings.WAIT_FOR_OLD_PATH: |
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log.info(f"{circuit} enabled but inactive - redeploy") |
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with circuit.lock: |
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circuit.deploy() |
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1 |
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def shutdown(self): |
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"""Execute when your napp is unloaded. |
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If you have some cleanup procedure, insert it here. |
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""" |
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@rest("/v2/evc/", methods=["GET"]) |
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def list_circuits(self, request: Request) -> JSONResponse: |
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"""Endpoint to return circuits stored. |
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archive query arg if defined (not null) will be filtered |
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accordingly, by default only non archived evcs will be listed |
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""" |
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log.debug("list_circuits /v2/evc") |
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args = request.query_params |
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archived = args.get("archived", "false").lower() |
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args = {k: v for k, v in args.items() if k not in {"archived"}} |
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circuits = self.mongo_controller.get_circuits(archived=archived, |
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metadata=args) |
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circuits = circuits['circuits'] |
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return JSONResponse(circuits) |
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1 |
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@rest("/v2/evc/schedule", methods=["GET"]) |
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def list_schedules(self, _request: Request) -> JSONResponse: |
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"""Endpoint to return all schedules stored for all circuits. |
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Return a JSON with the following template: |
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[{"schedule_id": <schedule_id>, |
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"circuit_id": <circuit_id>, |
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"schedule": <schedule object>}] |
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1 |
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""" |
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log.debug("list_schedules /v2/evc/schedule") |
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1 |
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circuits = self.mongo_controller.get_circuits()['circuits'].values() |
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1 |
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if not circuits: |
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1 |
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result = {} |
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status = 200 |
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return JSONResponse(result, status_code=status) |
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1 |
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186
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1 |
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result = [] |
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status = 200 |
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188
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1 |
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for circuit in circuits: |
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1 |
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circuit_scheduler = circuit.get("circuit_scheduler") |
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1 |
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if circuit_scheduler: |
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1 |
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for scheduler in circuit_scheduler: |
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value = { |
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"schedule_id": scheduler.get("id"), |
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"circuit_id": circuit.get("id"), |
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"schedule": scheduler, |
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1 |
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} |
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result.append(value) |
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198
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1 |
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199
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1 |
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log.debug("list_schedules result %s %s", result, status) |
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200
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return JSONResponse(result, status_code=status) |
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201
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1 |
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202
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1 |
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@rest("/v2/evc/{circuit_id}", methods=["GET"]) |
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203
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def get_circuit(self, request: Request) -> JSONResponse: |
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204
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1 |
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"""Endpoint to return a circuit based on id.""" |
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205
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1 |
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circuit_id = request.path_params["circuit_id"] |
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206
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1 |
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log.debug("get_circuit /v2/evc/%s", circuit_id) |
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207
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1 |
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circuit = self.mongo_controller.get_circuit(circuit_id) |
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208
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1 |
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if not circuit: |
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209
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1 |
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result = f"circuit_id {circuit_id} not found" |
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210
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1 |
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log.debug("get_circuit result %s %s", result, 404) |
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211
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1 |
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raise HTTPException(404, detail=result) |
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212
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1 |
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status = 200 |
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213
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1 |
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log.debug("get_circuit result %s %s", circuit, status) |
|
214
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return JSONResponse(circuit, status_code=status) |
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215
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|
216
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1 |
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# pylint: disable=too-many-branches, too-many-statements |
|
217
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1 |
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@rest("/v2/evc/", methods=["POST"]) |
|
218
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1 |
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@validate_openapi(spec) |
|
219
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def create_circuit(self, request: Request) -> JSONResponse: |
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220
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"""Try to create a new circuit. |
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221
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|
|
222
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Firstly, for EVPL: E-Line NApp verifies if UNI_A's requested C-VID and |
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223
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UNI_Z's requested C-VID are available from the interfaces' pools. This |
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224
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is checked when creating the UNI object. |
|
225
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|
226
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Then, E-Line NApp requests a primary and a backup path to the |
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227
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Pathfinder NApp using the attributes primary_links and backup_links |
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228
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submitted via REST |
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229
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|
230
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# For each link composing paths in #3: |
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231
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# - E-Line NApp requests a S-VID available from the link VLAN pool. |
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232
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# - Using the S-VID obtained, generate abstract flow entries to be |
|
233
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# sent to FlowManager |
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234
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|
235
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Push abstract flow entries to FlowManager and FlowManager pushes |
|
236
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OpenFlow entries to datapaths |
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237
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|
238
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E-Line NApp generates an event to notify all Kytos NApps of a new EVC |
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239
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creation |
|
240
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241
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Finnaly, notify user of the status of its request. |
|
242
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""" |
|
243
|
1 |
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# Try to create the circuit object |
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244
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1 |
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log.debug("create_circuit /v2/evc/") |
|
245
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data = get_json_or_400(request, self.controller.loop) |
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246
|
1 |
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|
247
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1 |
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try: |
|
248
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1 |
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evc = self._evc_from_dict(data) |
|
249
|
1 |
|
except (ValueError, KytosTagError) as exception: |
|
250
|
1 |
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log.debug("create_circuit result %s %s", exception, 400) |
|
251
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1 |
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raise HTTPException(400, detail=str(exception)) from exception |
|
252
|
1 |
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try: |
|
253
|
1 |
|
check_disabled_component(evc.uni_a, evc.uni_z) |
|
254
|
1 |
|
except DisabledSwitch as exception: |
|
255
|
1 |
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log.debug("create_circuit result %s %s", exception, 409) |
|
256
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raise HTTPException( |
|
257
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409, |
|
258
|
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detail=f"Path is not valid: {exception}" |
|
259
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|
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) from exception |
|
260
|
1 |
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|
261
|
1 |
|
if evc.primary_path: |
|
262
|
1 |
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try: |
|
263
|
|
|
evc.primary_path.is_valid( |
|
264
|
|
|
evc.uni_a.interface.switch, |
|
265
|
|
|
evc.uni_z.interface.switch, |
|
266
|
|
|
bool(evc.circuit_scheduler), |
|
267
|
1 |
|
) |
|
268
|
1 |
|
except InvalidPath as exception: |
|
269
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|
|
raise HTTPException( |
|
270
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|
400, |
|
271
|
|
|
detail=f"primary_path is not valid: {exception}" |
|
272
|
1 |
|
) from exception |
|
273
|
1 |
|
if evc.backup_path: |
|
274
|
1 |
|
try: |
|
275
|
|
|
evc.backup_path.is_valid( |
|
276
|
|
|
evc.uni_a.interface.switch, |
|
277
|
|
|
evc.uni_z.interface.switch, |
|
278
|
|
|
bool(evc.circuit_scheduler), |
|
279
|
1 |
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) |
|
280
|
1 |
|
except InvalidPath as exception: |
|
281
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|
raise HTTPException( |
|
282
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|
|
400, |
|
283
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|
|
detail=f"backup_path is not valid: {exception}" |
|
284
|
|
|
) from exception |
|
285
|
1 |
|
|
|
286
|
1 |
|
if not evc._tag_lists_equal(): |
|
287
|
1 |
|
detail = "UNI_A and UNI_Z tag lists should be the same." |
|
288
|
|
|
raise HTTPException(400, detail=detail) |
|
289
|
1 |
|
|
|
290
|
1 |
|
try: |
|
291
|
1 |
|
evc._validate_has_primary_or_dynamic() |
|
292
|
1 |
|
except ValueError as exception: |
|
293
|
|
|
raise HTTPException(400, detail=str(exception)) from exception |
|
294
|
1 |
|
|
|
295
|
1 |
|
try: |
|
296
|
|
|
self._check_no_tag_duplication(evc.id, evc.uni_a, evc.uni_z) |
|
297
|
|
|
except DuplicatedNoTagUNI as exception: |
|
298
|
|
|
log.debug("create_circuit result %s %s", exception, 409) |
|
299
|
|
|
raise HTTPException(409, detail=str(exception)) from exception |
|
300
|
1 |
|
|
|
301
|
1 |
|
try: |
|
302
|
1 |
|
self._use_uni_tags(evc) |
|
303
|
1 |
|
except KytosTagError as exception: |
|
304
|
|
|
raise HTTPException(400, detail=str(exception)) from exception |
|
305
|
|
|
|
|
306
|
1 |
|
# save circuit |
|
307
|
1 |
|
try: |
|
308
|
|
|
evc.sync() |
|
309
|
|
|
except ValidationError as exception: |
|
310
|
|
|
raise HTTPException(400, detail=str(exception)) from exception |
|
311
|
|
|
|
|
312
|
1 |
|
# store circuit in dictionary |
|
313
|
|
|
self.circuits[evc.id] = evc |
|
314
|
|
|
|
|
315
|
1 |
|
# Schedule the circuit deploy |
|
316
|
|
|
self.sched.add(evc) |
|
317
|
|
|
|
|
318
|
1 |
|
# Circuit has no schedule, deploy now |
|
319
|
1 |
|
deployed = False |
|
320
|
1 |
|
if not evc.circuit_scheduler: |
|
321
|
1 |
|
with evc.lock: |
|
322
|
|
|
deployed = evc.deploy() |
|
323
|
|
|
|
|
324
|
1 |
|
# Notify users |
|
325
|
1 |
|
result = {"circuit_id": evc.id, "deployed": deployed} |
|
326
|
1 |
|
status = 201 |
|
327
|
1 |
|
log.debug("create_circuit result %s %s", result, status) |
|
328
|
|
|
emit_event(self.controller, name="created", |
|
329
|
1 |
|
content=map_evc_event_content(evc)) |
|
330
|
|
|
return JSONResponse(result, status_code=status) |
|
331
|
1 |
|
|
|
332
|
1 |
|
@staticmethod |
|
333
|
1 |
|
def _use_uni_tags(evc): |
|
334
|
1 |
|
uni_a = evc.uni_a |
|
335
|
1 |
|
evc._use_uni_vlan(uni_a) |
|
336
|
1 |
|
try: |
|
337
|
1 |
|
uni_z = evc.uni_z |
|
338
|
1 |
|
evc._use_uni_vlan(uni_z) |
|
339
|
1 |
|
except KytosTagError as err: |
|
340
|
1 |
|
evc.make_uni_vlan_available(uni_a) |
|
341
|
|
|
raise err |
|
342
|
1 |
|
|
|
343
|
1 |
|
@listen_to('kytos/flow_manager.flow.removed') |
|
344
|
|
|
def on_flow_delete(self, event): |
|
345
|
|
|
"""Capture delete messages to keep track when flows got removed.""" |
|
346
|
|
|
self.handle_flow_delete(event) |
|
347
|
1 |
|
|
|
348
|
|
|
def handle_flow_delete(self, event): |
|
349
|
1 |
|
"""Keep track when the EVC got flows removed by deriving its cookie.""" |
|
350
|
1 |
|
flow = event.content["flow"] |
|
351
|
1 |
|
evc = self.circuits.get(EVC.get_id_from_cookie(flow.cookie)) |
|
352
|
1 |
|
if evc: |
|
353
|
1 |
|
log.debug("Flow removed in EVC %s", evc.id) |
|
354
|
|
|
evc.set_flow_removed_at() |
|
355
|
1 |
|
|
|
356
|
1 |
|
@rest("/v2/evc/{circuit_id}", methods=["PATCH"]) |
|
357
|
1 |
|
@validate_openapi(spec) |
|
358
|
|
|
def update(self, request: Request) -> JSONResponse: |
|
359
|
|
|
"""Update a circuit based on payload. |
|
360
|
|
|
|
|
361
|
|
|
The EVC attributes (creation_time, active, current_path, |
|
362
|
|
|
failover_path, _id, archived) can't be updated. |
|
363
|
1 |
|
""" |
|
364
|
1 |
|
data = get_json_or_400(request, self.controller.loop) |
|
365
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
366
|
1 |
|
log.debug("update /v2/evc/%s", circuit_id) |
|
367
|
1 |
|
try: |
|
368
|
1 |
|
evc = self.circuits[circuit_id] |
|
369
|
1 |
|
except KeyError: |
|
370
|
1 |
|
result = f"circuit_id {circuit_id} not found" |
|
371
|
1 |
|
log.debug("update result %s %s", result, 404) |
|
372
|
|
|
raise HTTPException(404, detail=result) from KeyError |
|
373
|
1 |
|
|
|
374
|
1 |
|
try: |
|
375
|
1 |
|
updated_data = self._evc_dict_with_instances(data) |
|
376
|
|
|
self._check_no_tag_duplication( |
|
377
|
|
|
circuit_id, updated_data.get("uni_a"), |
|
378
|
|
|
updated_data.get("uni_z") |
|
379
|
1 |
|
) |
|
380
|
1 |
|
enable, redeploy = evc.update(**updated_data) |
|
381
|
1 |
|
except (ValueError, KytosTagError, ValidationError) as exception: |
|
382
|
1 |
|
log.debug("update result %s %s", exception, 400) |
|
383
|
1 |
|
raise HTTPException(400, detail=str(exception)) from exception |
|
384
|
|
|
except DuplicatedNoTagUNI as exception: |
|
385
|
|
|
log.debug("update result %s %s", exception, 409) |
|
386
|
1 |
|
raise HTTPException(409, detail=str(exception)) from exception |
|
387
|
1 |
|
except DisabledSwitch as exception: |
|
388
|
1 |
|
log.debug("update result %s %s", exception, 409) |
|
389
|
|
|
raise HTTPException( |
|
390
|
|
|
409, |
|
391
|
|
|
detail=f"Path is not valid: {exception}" |
|
392
|
1 |
|
) from exception |
|
393
|
1 |
|
redeployed = False |
|
394
|
|
|
if evc.is_active(): |
|
395
|
|
|
if enable is False: # disable if active |
|
396
|
|
|
with evc.lock: |
|
397
|
|
|
evc.remove() |
|
398
|
|
|
elif redeploy is not None: # redeploy if active |
|
399
|
|
|
with evc.lock: |
|
400
|
|
|
evc.remove() |
|
401
|
|
|
redeployed = evc.deploy() |
|
402
|
1 |
|
else: |
|
403
|
1 |
|
if enable is True: # enable if inactive |
|
404
|
1 |
|
with evc.lock: |
|
405
|
1 |
|
redeployed = evc.deploy() |
|
406
|
1 |
|
elif evc.is_enabled() and redeploy: |
|
407
|
1 |
|
with evc.lock: |
|
408
|
1 |
|
evc.remove() |
|
409
|
1 |
|
redeployed = evc.deploy() |
|
410
|
1 |
|
result = {evc.id: evc.as_dict(), 'redeployed': redeployed} |
|
411
|
|
|
status = 200 |
|
412
|
1 |
|
|
|
413
|
1 |
|
log.debug("update result %s %s", result, status) |
|
414
|
|
|
emit_event(self.controller, "updated", |
|
415
|
1 |
|
content=map_evc_event_content(evc, **data)) |
|
416
|
|
|
return JSONResponse(result, status_code=status) |
|
417
|
1 |
|
|
|
418
|
1 |
|
@rest("/v2/evc/{circuit_id}", methods=["DELETE"]) |
|
419
|
|
|
def delete_circuit(self, request: Request) -> JSONResponse: |
|
420
|
|
|
"""Remove a circuit. |
|
421
|
|
|
|
|
422
|
|
|
First, the flows are removed from the switches, and then the EVC is |
|
423
|
|
|
disabled. |
|
424
|
1 |
|
""" |
|
425
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
426
|
1 |
|
log.debug("delete_circuit /v2/evc/%s", circuit_id) |
|
427
|
1 |
|
try: |
|
428
|
1 |
|
evc = self.circuits.pop(circuit_id) |
|
429
|
1 |
|
except KeyError: |
|
430
|
1 |
|
result = f"circuit_id {circuit_id} not found" |
|
431
|
1 |
|
log.debug("delete_circuit result %s %s", result, 404) |
|
432
|
1 |
|
raise HTTPException(404, detail=result) from KeyError |
|
433
|
|
|
log.info("Removing %s", evc) |
|
434
|
1 |
|
|
|
435
|
1 |
|
with evc.lock: |
|
436
|
1 |
|
if not evc.archived: |
|
437
|
1 |
|
evc.deactivate() |
|
438
|
1 |
|
evc.disable() |
|
439
|
1 |
|
self.sched.remove(evc) |
|
440
|
1 |
|
evc.remove_current_flows(sync=False) |
|
441
|
1 |
|
evc.remove_failover_flows(sync=False) |
|
442
|
1 |
|
evc.archive() |
|
443
|
1 |
|
evc.remove_uni_tags() |
|
444
|
1 |
|
evc.sync() |
|
445
|
|
|
emit_event( |
|
446
|
|
|
self.controller, "deleted", |
|
447
|
|
|
content=map_evc_event_content(evc) |
|
448
|
|
|
) |
|
449
|
1 |
|
|
|
450
|
1 |
|
log.info("EVC removed. %s", evc) |
|
451
|
1 |
|
result = {"response": f"Circuit {circuit_id} removed"} |
|
452
|
1 |
|
status = 200 |
|
453
|
|
|
log.debug("delete_circuit result %s %s", result, status) |
|
454
|
1 |
|
|
|
455
|
|
|
return JSONResponse(result, status_code=status) |
|
456
|
1 |
|
|
|
457
|
1 |
|
@rest("/v2/evc/{circuit_id}/metadata", methods=["GET"]) |
|
458
|
|
|
def get_metadata(self, request: Request) -> JSONResponse: |
|
459
|
1 |
|
"""Get metadata from an EVC.""" |
|
460
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
461
|
1 |
|
try: |
|
462
|
|
|
return ( |
|
463
|
|
|
JSONResponse({"metadata": self.circuits[circuit_id].metadata}) |
|
464
|
|
|
) |
|
465
|
|
|
except KeyError as error: |
|
466
|
|
|
raise HTTPException( |
|
467
|
|
|
404, |
|
468
|
|
|
detail=f"circuit_id {circuit_id} not found." |
|
469
|
|
|
) from error |
|
470
|
1 |
|
|
|
471
|
1 |
View Code Duplication |
@rest("/v2/evc/metadata", methods=["POST"]) |
|
|
|
|
|
|
472
|
1 |
|
@validate_openapi(spec) |
|
473
|
|
|
def bulk_add_metadata(self, request: Request) -> JSONResponse: |
|
474
|
1 |
|
"""Add metadata to a bulk of EVCs.""" |
|
475
|
1 |
|
data = get_json_or_400(request, self.controller.loop) |
|
476
|
|
|
circuit_ids = data.pop("circuit_ids") |
|
477
|
1 |
|
|
|
478
|
|
|
self.mongo_controller.update_evcs_metadata(circuit_ids, data, "add") |
|
479
|
1 |
|
|
|
480
|
1 |
|
fail_evcs = [] |
|
481
|
1 |
|
for _id in circuit_ids: |
|
482
|
1 |
|
try: |
|
483
|
1 |
|
evc = self.circuits[_id] |
|
484
|
1 |
|
evc.extend_metadata(data) |
|
485
|
1 |
|
except KeyError: |
|
486
|
|
|
fail_evcs.append(_id) |
|
487
|
1 |
|
|
|
488
|
1 |
|
if fail_evcs: |
|
489
|
1 |
|
raise HTTPException(404, detail=fail_evcs) |
|
490
|
|
|
return JSONResponse("Operation successful", status_code=201) |
|
491
|
1 |
|
|
|
492
|
1 |
|
@rest("/v2/evc/{circuit_id}/metadata", methods=["POST"]) |
|
493
|
1 |
|
@validate_openapi(spec) |
|
494
|
|
|
def add_metadata(self, request: Request) -> JSONResponse: |
|
495
|
1 |
|
"""Add metadata to an EVC.""" |
|
496
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
497
|
1 |
|
metadata = get_json_or_400(request, self.controller.loop) |
|
498
|
|
|
if not isinstance(metadata, dict): |
|
499
|
1 |
|
raise HTTPException(400, f"Invalid metadata value: {metadata}") |
|
500
|
1 |
|
try: |
|
501
|
1 |
|
evc = self.circuits[circuit_id] |
|
502
|
1 |
|
except KeyError as error: |
|
503
|
|
|
raise HTTPException( |
|
504
|
|
|
404, |
|
505
|
|
|
detail=f"circuit_id {circuit_id} not found." |
|
506
|
|
|
) from error |
|
507
|
1 |
|
|
|
508
|
1 |
|
evc.extend_metadata(metadata) |
|
509
|
1 |
|
evc.sync() |
|
510
|
|
|
return JSONResponse("Operation successful", status_code=201) |
|
511
|
1 |
|
|
|
512
|
1 |
View Code Duplication |
@rest("/v2/evc/metadata/{key}", methods=["DELETE"]) |
|
|
|
|
|
|
513
|
1 |
|
@validate_openapi(spec) |
|
514
|
|
|
def bulk_delete_metadata(self, request: Request) -> JSONResponse: |
|
515
|
1 |
|
"""Delete metada from a bulk of EVCs""" |
|
516
|
1 |
|
data = get_json_or_400(request, self.controller.loop) |
|
517
|
1 |
|
key = request.path_params["key"] |
|
518
|
1 |
|
circuit_ids = data.pop("circuit_ids") |
|
519
|
|
|
self.mongo_controller.update_evcs_metadata( |
|
520
|
|
|
circuit_ids, {key: ""}, "del" |
|
521
|
|
|
) |
|
522
|
1 |
|
|
|
523
|
1 |
|
fail_evcs = [] |
|
524
|
1 |
|
for _id in circuit_ids: |
|
525
|
1 |
|
try: |
|
526
|
1 |
|
evc = self.circuits[_id] |
|
527
|
1 |
|
evc.remove_metadata(key) |
|
528
|
1 |
|
except KeyError: |
|
529
|
|
|
fail_evcs.append(_id) |
|
530
|
1 |
|
|
|
531
|
1 |
|
if fail_evcs: |
|
532
|
1 |
|
raise HTTPException(404, detail=fail_evcs) |
|
533
|
|
|
return JSONResponse("Operation successful") |
|
534
|
1 |
|
|
|
535
|
1 |
|
@rest("/v2/evc/{circuit_id}/metadata/{key}", methods=["DELETE"]) |
|
536
|
|
|
def delete_metadata(self, request: Request) -> JSONResponse: |
|
537
|
1 |
|
"""Delete metadata from an EVC.""" |
|
538
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
539
|
1 |
|
key = request.path_params["key"] |
|
540
|
1 |
|
try: |
|
541
|
1 |
|
evc = self.circuits[circuit_id] |
|
542
|
1 |
|
except KeyError as error: |
|
543
|
|
|
raise HTTPException( |
|
544
|
|
|
404, |
|
545
|
|
|
detail=f"circuit_id {circuit_id} not found." |
|
546
|
|
|
) from error |
|
547
|
1 |
|
|
|
548
|
1 |
|
evc.remove_metadata(key) |
|
549
|
1 |
|
evc.sync() |
|
550
|
|
|
return JSONResponse("Operation successful") |
|
551
|
1 |
|
|
|
552
|
1 |
|
@rest("/v2/evc/{circuit_id}/redeploy", methods=["PATCH"]) |
|
553
|
|
|
def redeploy(self, request: Request) -> JSONResponse: |
|
554
|
1 |
|
"""Endpoint to force the redeployment of an EVC.""" |
|
555
|
1 |
|
circuit_id = request.path_params["circuit_id"] |
|
556
|
|
|
try_avoid_same_s_vlan = request.query_params.get( |
|
557
|
|
|
"try_avoid_same_s_vlan", "true" |
|
558
|
1 |
|
) |
|
559
|
1 |
|
try_avoid_same_s_vlan = try_avoid_same_s_vlan.lower() |
|
560
|
|
|
if try_avoid_same_s_vlan not in {"true", "false"}: |
|
561
|
|
|
msg = "Parameter try_avoid_same_s_vlan has an invalid value." |
|
562
|
1 |
|
raise HTTPException(400, detail=msg) |
|
563
|
1 |
|
log.debug("redeploy /v2/evc/%s/redeploy", circuit_id) |
|
564
|
1 |
|
try: |
|
565
|
1 |
|
evc = self.circuits[circuit_id] |
|
566
|
1 |
|
except KeyError: |
|
567
|
|
|
raise HTTPException( |
|
568
|
|
|
404, |
|
569
|
|
|
detail=f"circuit_id {circuit_id} not found" |
|
570
|
1 |
|
) from KeyError |
|
571
|
1 |
|
deployed = False |
|
572
|
1 |
|
if evc.is_enabled(): |
|
573
|
1 |
|
with evc.lock: |
|
574
|
|
|
path_dict = evc.remove_current_flows( |
|
575
|
|
|
sync=False, |
|
576
|
|
|
return_path=try_avoid_same_s_vlan == "true" |
|
577
|
1 |
|
) |
|
578
|
1 |
|
evc.remove_failover_flows(sync=True) |
|
579
|
1 |
|
deployed = evc.deploy(path_dict) |
|
580
|
1 |
|
if deployed: |
|
581
|
1 |
|
result = {"response": f"Circuit {circuit_id} redeploy received."} |
|
582
|
|
|
status = 202 |
|
583
|
1 |
|
else: |
|
584
|
|
|
result = { |
|
585
|
|
|
"response": f"Circuit {circuit_id} is disabled." |
|
586
|
1 |
|
} |
|
587
|
|
|
status = 409 |
|
588
|
1 |
|
|
|
589
|
|
|
return JSONResponse(result, status_code=status) |
|
590
|
1 |
|
|
|
591
|
1 |
|
@rest("/v2/evc/schedule/", methods=["POST"]) |
|
592
|
1 |
|
@validate_openapi(spec) |
|
593
|
|
|
def create_schedule(self, request: Request) -> JSONResponse: |
|
594
|
|
|
""" |
|
595
|
|
|
Create a new schedule for a given circuit. |
|
596
|
|
|
|
|
597
|
|
|
This service do no check if there are conflicts with another schedule. |
|
598
|
|
|
Payload example: |
|
599
|
|
|
{ |
|
600
|
|
|
"circuit_id":"aa:bb:cc", |
|
601
|
|
|
"schedule": { |
|
602
|
|
|
"date": "2019-08-07T14:52:10.967Z", |
|
603
|
|
|
"interval": "string", |
|
604
|
|
|
"frequency": "1 * * * *", |
|
605
|
|
|
"action": "create" |
|
606
|
|
|
} |
|
607
|
|
|
} |
|
608
|
1 |
|
""" |
|
609
|
1 |
|
log.debug("create_schedule /v2/evc/schedule/") |
|
610
|
1 |
|
data = get_json_or_400(request, self.controller.loop) |
|
611
|
1 |
|
circuit_id = data["circuit_id"] |
|
612
|
|
|
schedule_data = data["schedule"] |
|
613
|
|
|
|
|
614
|
1 |
|
# Get EVC from circuits buffer |
|
615
|
|
|
circuits = self._get_circuits_buffer() |
|
616
|
|
|
|
|
617
|
1 |
|
# get the circuit |
|
618
|
|
|
evc = circuits.get(circuit_id) |
|
619
|
|
|
|
|
620
|
1 |
|
# get the circuit |
|
621
|
1 |
|
if not evc: |
|
622
|
1 |
|
result = f"circuit_id {circuit_id} not found" |
|
623
|
1 |
|
log.debug("create_schedule result %s %s", result, 404) |
|
624
|
|
|
raise HTTPException(404, detail=result) |
|
625
|
|
|
|
|
626
|
1 |
|
# new schedule from dict |
|
627
|
|
|
new_schedule = CircuitSchedule.from_dict(schedule_data) |
|
628
|
|
|
|
|
629
|
1 |
|
# If there is no schedule, create the list |
|
630
|
1 |
|
if not evc.circuit_scheduler: |
|
631
|
|
|
evc.circuit_scheduler = [] |
|
632
|
|
|
|
|
633
|
1 |
|
# Add the new schedule |
|
634
|
|
|
evc.circuit_scheduler.append(new_schedule) |
|
635
|
|
|
|
|
636
|
1 |
|
# Add schedule job |
|
637
|
|
|
self.sched.add_circuit_job(evc, new_schedule) |
|
638
|
|
|
|
|
639
|
1 |
|
# save circuit to mongodb |
|
640
|
|
|
evc.sync() |
|
641
|
1 |
|
|
|
642
|
1 |
|
result = new_schedule.as_dict() |
|
643
|
|
|
status = 201 |
|
644
|
1 |
|
|
|
645
|
1 |
|
log.debug("create_schedule result %s %s", result, status) |
|
646
|
|
|
return JSONResponse(result, status_code=status) |
|
647
|
1 |
|
|
|
648
|
1 |
|
@rest("/v2/evc/schedule/{schedule_id}", methods=["PATCH"]) |
|
649
|
1 |
|
@validate_openapi(spec) |
|
650
|
|
|
def update_schedule(self, request: Request) -> JSONResponse: |
|
651
|
|
|
"""Update a schedule. |
|
652
|
|
|
|
|
653
|
|
|
Change all attributes from the given schedule from a EVC circuit. |
|
654
|
|
|
The schedule ID is preserved as default. |
|
655
|
|
|
Payload example: |
|
656
|
|
|
{ |
|
657
|
|
|
"date": "2019-08-07T14:52:10.967Z", |
|
658
|
|
|
"interval": "string", |
|
659
|
|
|
"frequency": "1 * * *", |
|
660
|
|
|
"action": "create" |
|
661
|
|
|
} |
|
662
|
1 |
|
""" |
|
663
|
1 |
|
data = get_json_or_400(request, self.controller.loop) |
|
664
|
1 |
|
schedule_id = request.path_params["schedule_id"] |
|
665
|
|
|
log.debug("update_schedule /v2/evc/schedule/%s", schedule_id) |
|
666
|
|
|
|
|
667
|
1 |
|
# Try to find a circuit schedule |
|
668
|
|
|
evc, found_schedule = self._find_evc_by_schedule_id(schedule_id) |
|
669
|
|
|
|
|
670
|
1 |
|
# Can not modify circuits deleted and archived |
|
671
|
1 |
|
if not found_schedule: |
|
672
|
1 |
|
result = f"schedule_id {schedule_id} not found" |
|
673
|
1 |
|
log.debug("update_schedule result %s %s", result, 404) |
|
674
|
|
|
raise HTTPException(404, detail=result) |
|
675
|
1 |
|
|
|
676
|
1 |
|
new_schedule = CircuitSchedule.from_dict(data) |
|
677
|
|
|
new_schedule.id = found_schedule.id |
|
678
|
1 |
|
# Remove the old schedule |
|
679
|
|
|
evc.circuit_scheduler.remove(found_schedule) |
|
680
|
1 |
|
# Append the modified schedule |
|
681
|
|
|
evc.circuit_scheduler.append(new_schedule) |
|
682
|
|
|
|
|
683
|
1 |
|
# Cancel all schedule jobs |
|
684
|
|
|
self.sched.cancel_job(found_schedule.id) |
|
685
|
1 |
|
# Add the new circuit schedule |
|
686
|
|
|
self.sched.add_circuit_job(evc, new_schedule) |
|
687
|
1 |
|
# Save EVC to mongodb |
|
688
|
|
|
evc.sync() |
|
689
|
1 |
|
|
|
690
|
1 |
|
result = new_schedule.as_dict() |
|
691
|
|
|
status = 200 |
|
692
|
1 |
|
|
|
693
|
1 |
|
log.debug("update_schedule result %s %s", result, status) |
|
694
|
|
|
return JSONResponse(result, status_code=status) |
|
695
|
1 |
|
|
|
696
|
1 |
|
@rest("/v2/evc/schedule/{schedule_id}", methods=["DELETE"]) |
|
697
|
|
|
def delete_schedule(self, request: Request) -> JSONResponse: |
|
698
|
|
|
"""Remove a circuit schedule. |
|
699
|
|
|
|
|
700
|
|
|
Remove the Schedule from EVC. |
|
701
|
|
|
Remove the Schedule from cron job. |
|
702
|
|
|
Save the EVC to the Storehouse. |
|
703
|
1 |
|
""" |
|
704
|
1 |
|
schedule_id = request.path_params["schedule_id"] |
|
705
|
1 |
|
log.debug("delete_schedule /v2/evc/schedule/%s", schedule_id) |
|
706
|
|
|
evc, found_schedule = self._find_evc_by_schedule_id(schedule_id) |
|
707
|
|
|
|
|
708
|
1 |
|
# Can not modify circuits deleted and archived |
|
709
|
1 |
|
if not found_schedule: |
|
710
|
1 |
|
result = f"schedule_id {schedule_id} not found" |
|
711
|
1 |
|
log.debug("delete_schedule result %s %s", result, 404) |
|
712
|
|
|
raise HTTPException(404, detail=result) |
|
713
|
|
|
|
|
714
|
1 |
|
# Remove the old schedule |
|
715
|
|
|
evc.circuit_scheduler.remove(found_schedule) |
|
716
|
|
|
|
|
717
|
1 |
|
# Cancel all schedule jobs |
|
718
|
|
|
self.sched.cancel_job(found_schedule.id) |
|
719
|
1 |
|
# Save EVC to mongodb |
|
720
|
|
|
evc.sync() |
|
721
|
1 |
|
|
|
722
|
1 |
|
result = "Schedule removed" |
|
723
|
|
|
status = 200 |
|
724
|
1 |
|
|
|
725
|
1 |
|
log.debug("delete_schedule result %s %s", result, status) |
|
726
|
|
|
return JSONResponse(result, status_code=status) |
|
727
|
1 |
|
|
|
728
|
|
|
def _check_no_tag_duplication( |
|
729
|
|
|
self, |
|
730
|
|
|
evc_id: str, |
|
731
|
|
|
uni_a: Optional[UNI] = None, |
|
732
|
|
|
uni_z: Optional[UNI] = None |
|
733
|
|
|
): |
|
734
|
|
|
"""Check if the given EVC has UNIs with no tag and if these are |
|
735
|
|
|
duplicated. Raise DuplicatedNoTagUNI if duplication is found. |
|
736
|
|
|
Args: |
|
737
|
|
|
evc (dict): EVC to be analyzed. |
|
738
|
|
|
""" |
|
739
|
|
|
|
|
740
|
1 |
|
# No UNIs |
|
741
|
1 |
|
if not (uni_a or uni_z): |
|
742
|
|
|
return |
|
743
|
1 |
|
|
|
744
|
|
|
if (not (uni_a and not uni_a.user_tag) and |
|
745
|
1 |
|
not (uni_z and not uni_z.user_tag)): |
|
746
|
1 |
|
return |
|
747
|
1 |
|
for circuit in self.circuits.copy().values(): |
|
748
|
1 |
|
if (not circuit.archived and circuit._id != evc_id): |
|
749
|
1 |
|
if uni_a and uni_a.user_tag is None: |
|
750
|
1 |
|
circuit.check_no_tag_duplicate(uni_a) |
|
751
|
1 |
|
if uni_z and uni_z.user_tag is None: |
|
752
|
|
|
circuit.check_no_tag_duplicate(uni_z) |
|
753
|
1 |
|
|
|
754
|
1 |
|
@listen_to("kytos/topology.link_up") |
|
755
|
|
|
def on_link_up(self, event): |
|
756
|
|
|
"""Change circuit when link is up or end_maintenance.""" |
|
757
|
|
|
self.handle_link_up(event) |
|
758
|
1 |
|
|
|
759
|
|
|
def handle_link_up(self, event): |
|
760
|
1 |
|
"""Change circuit when link is up or end_maintenance.""" |
|
761
|
1 |
|
log.info("Event handle_link_up %s", event.content["link"]) |
|
762
|
1 |
|
for evc in self.get_evcs_by_svc_level(): |
|
763
|
1 |
|
if evc.is_enabled() and not evc.archived: |
|
764
|
1 |
|
with evc.lock: |
|
765
|
|
|
evc.handle_link_up(event.content["link"]) |
|
766
|
|
|
|
|
767
|
1 |
|
# Possibly replace this with interruptions? |
|
768
|
|
|
@listen_to( |
|
769
|
|
|
'.*.switch.interface.(link_up|link_down|created|deleted)' |
|
770
|
1 |
|
) |
|
771
|
|
|
def on_interface_link_change(self, event: KytosEvent): |
|
772
|
|
|
""" |
|
773
|
|
|
Handler for interface link_up and link_down events. |
|
774
|
|
|
""" |
|
775
|
|
|
self.handle_on_interface_link_change(event) |
|
776
|
1 |
|
|
|
777
|
|
|
def handle_on_interface_link_change(self, event: KytosEvent): |
|
778
|
|
|
""" |
|
779
|
|
|
Handler to sort interface events {link_(up, down), create, deleted} |
|
780
|
|
|
|
|
781
|
|
|
To avoid multiple database updated (link flap): |
|
782
|
|
|
Every interface is identfied and processed in parallel. |
|
783
|
|
|
Once an interface event is received a time is started. |
|
784
|
|
|
While time is running self._intf_events will be updated. |
|
785
|
|
|
After time has passed last received event will be processed. |
|
786
|
1 |
|
""" |
|
787
|
1 |
|
iface = event.content.get("interface") |
|
788
|
1 |
|
with self._lock_interfaces[iface.id]: |
|
789
|
|
|
_now = event.timestamp |
|
790
|
1 |
|
# Return out of order events |
|
791
|
|
|
if ( |
|
792
|
|
|
iface.id in self._intf_events |
|
793
|
|
|
and self._intf_events[iface.id]["event"].timestamp > _now |
|
794
|
1 |
|
): |
|
795
|
1 |
|
return |
|
796
|
1 |
|
self._intf_events[iface.id].update({"event": event}) |
|
797
|
1 |
|
if "last_acquired" in self._intf_events[iface.id]: |
|
798
|
1 |
|
return |
|
799
|
1 |
|
self._intf_events[iface.id].update({"last_acquired": now()}) |
|
800
|
1 |
|
time.sleep(settings.UNI_STATE_CHANGE_DELAY) |
|
801
|
1 |
|
with self._lock_interfaces[iface.id]: |
|
802
|
1 |
|
event = self._intf_events[iface.id]["event"] |
|
803
|
1 |
|
self._intf_events[iface.id].pop('last_acquired', None) |
|
804
|
1 |
|
_, _, event_type = event.name.rpartition('.') |
|
805
|
1 |
|
if event_type in ('link_up', 'created'): |
|
806
|
1 |
|
self.handle_interface_link_up(iface) |
|
807
|
1 |
|
elif event_type in ('link_down', 'deleted'): |
|
808
|
|
|
self.handle_interface_link_down(iface) |
|
809
|
1 |
|
|
|
810
|
|
|
def handle_interface_link_up(self, interface): |
|
811
|
|
|
""" |
|
812
|
|
|
Handler for interface link_up events |
|
813
|
|
|
""" |
|
814
|
|
|
log.info("Event handle_interface_link_up %s", interface) |
|
815
|
|
|
for evc in self.get_evcs_by_svc_level(): |
|
816
|
|
|
with evc.lock: |
|
817
|
|
|
evc.handle_interface_link_up( |
|
818
|
|
|
interface |
|
819
|
|
|
) |
|
820
|
1 |
|
|
|
821
|
|
|
def handle_interface_link_down(self, interface): |
|
822
|
|
|
""" |
|
823
|
|
|
Handler for interface link_down events |
|
824
|
|
|
""" |
|
825
|
|
|
log.info("Event handle_interface_link_down %s", interface) |
|
826
|
|
|
for evc in self.get_evcs_by_svc_level(): |
|
827
|
|
|
with evc.lock: |
|
828
|
|
|
evc.handle_interface_link_down( |
|
829
|
|
|
interface |
|
830
|
|
|
) |
|
831
|
1 |
|
|
|
832
|
1 |
|
@listen_to("kytos/topology.link_down", pool="dynamic_single") |
|
833
|
|
|
def on_link_down(self, event): |
|
834
|
|
|
"""Change circuit when link is down or under_mantenance.""" |
|
835
|
|
|
self.handle_link_down(event) |
|
836
|
|
|
|
|
837
|
|
|
# pylint: disable=too-many-branches |
|
838
|
1 |
|
# pylint: disable=too-many-locals |
|
839
|
|
|
def handle_link_down(self, event): |
|
840
|
1 |
|
"""Change circuit when link is down or under_mantenance.""" |
|
841
|
1 |
|
link = event.content["link"] |
|
842
|
1 |
|
log.info("Event handle_link_down %s", link) |
|
843
|
1 |
|
|
|
844
|
1 |
|
with ExitStack() as exit_stack: |
|
845
|
1 |
|
exit_stack.enter_context(self._lock) |
|
846
|
1 |
|
swap_to_failover = list[EVC]() |
|
847
|
|
|
redeploy = list[EVC]() |
|
848
|
1 |
|
clear_failover = list[EVC]() |
|
849
|
1 |
|
clear_old_path = list[EVC]() |
|
850
|
1 |
|
evc_dict = dict[str, EVC]() |
|
851
|
1 |
|
evcs_to_update = list[EVC]() |
|
852
|
|
|
|
|
853
|
|
|
flow_modifications = defaultdict[str, dict[str, dict[list]]](dict) |
|
854
|
1 |
|
event_contents = defaultdict[str, dict[str, dict]](dict) |
|
855
|
|
|
|
|
856
|
|
|
for evc in self.get_evcs_by_svc_level(): |
|
857
|
|
|
evc_dict[evc.id] = evc |
|
858
|
1 |
|
with ExitStack() as sub_stack: |
|
859
|
1 |
|
sub_stack.enter_context(evc.lock) |
|
860
|
1 |
|
if all(( |
|
861
|
1 |
|
evc.is_affected_by_link(link), |
|
862
|
1 |
|
evc.failover_path, |
|
863
|
1 |
|
not evc.is_failover_path_affected_by_link(link) |
|
864
|
1 |
|
)): |
|
865
|
|
|
swap_to_failover.append(evc) |
|
866
|
1 |
|
elif all(( |
|
867
|
1 |
|
evc.is_affected_by_link(link), |
|
868
|
1 |
|
not evc.failover_path or |
|
869
|
|
|
evc.is_failover_path_affected_by_link(link) |
|
870
|
|
|
)): |
|
871
|
|
|
redeploy.append(evc) |
|
872
|
1 |
|
elif all(( |
|
873
|
1 |
|
not evc.is_affected_by_link(link), |
|
874
|
1 |
|
evc.failover_path, |
|
875
|
1 |
|
evc.is_failover_path_affected_by_link(link) |
|
876
|
1 |
|
)): |
|
877
|
1 |
|
clear_failover.append(evc) |
|
878
|
1 |
|
else: |
|
879
|
|
|
continue |
|
880
|
|
|
|
|
881
|
|
|
exit_stack.push(sub_stack.pop_all()) |
|
882
|
1 |
|
|
|
883
|
1 |
|
# Swap from current path to failover path |
|
884
|
1 |
|
|
|
885
|
1 |
|
for evc in swap_to_failover: |
|
886
|
|
|
try: |
|
887
|
1 |
|
new_flows = evc.get_failover_flows() |
|
888
|
1 |
|
evc.old_path = evc.current_path |
|
889
|
|
|
evc.current_path = evc.failover_path |
|
890
|
1 |
|
evc.failover_path = Path([]) |
|
891
|
|
|
# pylint: disable=broad-except |
|
892
|
1 |
|
except Exception: |
|
893
|
1 |
|
err = traceback.format_exc().replace("\n", ", ") |
|
894
|
|
|
log.error( |
|
895
|
|
|
"Ignore Failover path for " |
|
896
|
|
|
f"{evc} due to error: {err}" |
|
897
|
|
|
) |
|
898
|
|
|
del flow_modifications[evc.id] |
|
899
|
1 |
|
del event_contents[evc.id] |
|
900
|
1 |
|
redeploy.append(evc) |
|
901
|
1 |
|
continue |
|
902
|
1 |
|
flow_modifications[evc.id]["swap_to_failover"] = new_flows |
|
903
|
|
|
event_contents[evc.id]["swap_to_failover"] = map_evc_event_content( |
|
904
|
|
|
evc, |
|
905
|
1 |
|
flows=deepcopy(new_flows) |
|
906
|
1 |
|
) |
|
907
|
|
|
clear_old_path.append(evc) |
|
908
|
1 |
|
|
|
909
|
|
|
for evc in clear_failover: |
|
910
|
1 |
|
evc.old_path = evc.failover_path |
|
911
|
|
|
evc.failover_path = Path([]) |
|
912
|
|
|
clear_old_path.append(evc) |
|
913
|
|
|
|
|
914
|
|
|
# Clear out old flows |
|
915
|
|
|
|
|
916
|
1 |
|
for evc in clear_old_path: |
|
917
|
1 |
|
try: |
|
918
|
|
|
del_flows = prepare_delete_flow( |
|
919
|
|
|
merge_flow_dicts( |
|
920
|
|
|
evc._prepare_uni_flows(evc.old_path, skip_in=True), |
|
921
|
1 |
|
evc._prepare_nni_flows(evc.old_path) |
|
922
|
|
|
) |
|
923
|
1 |
|
) |
|
924
|
1 |
|
evc.old_path = Path([]) |
|
925
|
1 |
|
# pylint: disable=broad-except |
|
926
|
1 |
|
except Exception: |
|
927
|
1 |
|
err = traceback.format_exc().replace("\n", ", ") |
|
928
|
1 |
|
log.error(f"Fail to remove {evc} old_path: {err}") |
|
929
|
|
|
if "swap_to_failover" in flow_modifications[evc.id]: |
|
930
|
1 |
|
evc.failover_path = evc.current_path |
|
931
|
1 |
|
evc.current_path = evc.old_path |
|
932
|
1 |
|
else: |
|
933
|
1 |
|
evc.failover_path = evc.old_path |
|
934
|
1 |
|
evc.old_path = Path([]) |
|
935
|
1 |
|
del flow_modifications[evc.id] |
|
936
|
|
|
del event_contents[evc.id] |
|
937
|
|
|
redeploy.append(evc) |
|
938
|
1 |
|
continue |
|
939
|
1 |
|
flow_modifications[evc.id]["clear_old_path"] = new_flows |
|
|
|
|
|
|
940
|
|
|
event_contents[evc.id]["clear_old_path"] = map_evc_event_content( |
|
941
|
|
|
evc, |
|
942
|
|
|
removed_flows=deepcopy(del_flows) |
|
943
|
1 |
|
) |
|
944
|
|
|
|
|
945
|
|
|
swap_to_failover_flows = {} |
|
946
|
|
|
swap_to_failover_event_contents = {} |
|
947
|
|
|
|
|
948
|
|
|
clear_old_path_flows = {} |
|
949
|
|
|
clear_old_path_event_contents = {} |
|
950
|
1 |
|
|
|
951
|
1 |
|
for modified_evc_id in flow_modifications: |
|
952
|
|
|
if "swap_to_failover" in flow_modifications[modified_evc_id]: |
|
953
|
|
|
swap_to_failover_flows = merge_flow_dicts( |
|
954
|
|
|
swap_to_failover_flows, |
|
955
|
1 |
|
flow_modifications[modified_evc_id]["swap_to_failover"] |
|
956
|
|
|
) |
|
957
|
1 |
|
swap_to_failover_event_contents[modified_evc_id] =\ |
|
958
|
1 |
|
event_contents[modified_evc_id]["swap_to_failover"] |
|
959
|
1 |
|
if "clear_old_path" in flow_modifications[modified_evc_id]: |
|
960
|
1 |
|
clear_old_path_flows = merge_flow_dicts( |
|
961
|
1 |
|
clear_old_path_flows, |
|
962
|
1 |
|
flow_modifications[modified_evc_id]["clear_old_path"] |
|
963
|
1 |
|
) |
|
964
|
1 |
|
clear_old_path_event_contents[modified_evc_id] =\ |
|
965
|
1 |
|
event_contents[modified_evc_id]["clear_old_path"] |
|
966
|
1 |
|
evcs_to_update.append(evc_dict[modified_evc_id]) |
|
967
|
|
|
|
|
968
|
|
|
if swap_to_failover_flows: |
|
969
|
1 |
|
emit_event( |
|
970
|
|
|
self.controller, "failover_link_down", |
|
971
|
|
|
content=deepcopy(swap_to_failover_event_contents) |
|
972
|
1 |
|
) |
|
973
|
|
|
send_flow_mods_event( |
|
974
|
|
|
self.controller, |
|
975
|
|
|
swap_to_failover_flows, |
|
976
|
|
|
'install' |
|
977
|
|
|
) |
|
978
|
|
|
|
|
979
|
|
|
if clear_old_path_flows: |
|
980
|
1 |
|
send_flow_mods_event( |
|
981
|
1 |
|
self.controller, |
|
982
|
1 |
|
clear_old_path_flows, |
|
983
|
|
|
'delete' |
|
984
|
|
|
) |
|
985
|
|
|
emit_event( |
|
986
|
|
|
self.controller, |
|
987
|
1 |
|
"failover_old_path", |
|
988
|
1 |
|
content=clear_old_path_event_contents |
|
989
|
1 |
|
) |
|
990
|
1 |
|
|
|
991
|
1 |
|
# Handle redeploys |
|
992
|
|
|
# This uses a separate syncing mechanism here, so don't push to DB. |
|
993
|
|
|
# TODO: replace with bulk update mechanism |
|
994
|
1 |
|
|
|
995
|
1 |
|
for evc in redeploy: |
|
996
|
|
|
result = evc.handle_link_down() |
|
997
|
|
|
event_name = "error_redeploy_link_down" |
|
998
|
|
|
if result: |
|
999
|
1 |
|
log.info(f"{evc} redeployed due to link down {link.id}") |
|
1000
|
|
|
event_name = "redeployed_link_down" |
|
1001
|
1 |
|
emit_event( |
|
1002
|
1 |
|
self.controller, |
|
1003
|
1 |
|
event_name, |
|
1004
|
1 |
|
content=map_evc_event_content(evc) |
|
1005
|
1 |
|
) |
|
1006
|
|
|
|
|
1007
|
|
|
# Push update to DB |
|
1008
|
1 |
|
|
|
1009
|
|
|
if evcs_to_update: |
|
1010
|
1 |
|
self.mongo_controller.update_evcs( |
|
1011
|
1 |
|
[evc.as_dict() for evc in evcs_to_update] |
|
1012
|
1 |
|
) |
|
1013
|
1 |
|
|
|
1014
|
|
|
@listen_to("kytos/mef_eline.evc_affected_by_link_down") |
|
1015
|
|
|
def on_evc_affected_by_link_down(self, event): |
|
1016
|
1 |
|
"""Change circuit when link is down or under_mantenance.""" |
|
1017
|
1 |
|
self.handle_evc_affected_by_link_down(event) |
|
1018
|
1 |
|
|
|
1019
|
|
|
def handle_evc_affected_by_link_down(self, event): |
|
1020
|
1 |
|
"""Change circuit when link is down or under_mantenance.""" |
|
1021
|
1 |
|
evc = self.circuits.get(event.content["evc_id"]) |
|
1022
|
1 |
|
link = event.content['link'] |
|
1023
|
|
|
if not evc: |
|
1024
|
1 |
|
return |
|
1025
|
1 |
|
with evc.lock: |
|
1026
|
|
|
if not evc.is_affected_by_link(link): |
|
1027
|
|
|
return |
|
1028
|
|
|
result = evc.handle_link_down() |
|
1029
|
1 |
|
event_name = "error_redeploy_link_down" |
|
1030
|
|
|
if result: |
|
1031
|
1 |
|
log.info(f"{evc} redeployed due to link down {link.id}") |
|
1032
|
1 |
|
event_name = "redeployed_link_down" |
|
1033
|
1 |
|
emit_event(self.controller, event_name, |
|
1034
|
|
|
content=map_evc_event_content(evc)) |
|
1035
|
1 |
|
|
|
1036
|
1 |
|
@listen_to("kytos/mef_eline.(redeployed_link_(up|down)|deployed)") |
|
1037
|
1 |
|
def on_evc_deployed(self, event): |
|
1038
|
1 |
|
"""Handle EVC deployed|redeployed_link_down.""" |
|
1039
|
1 |
|
self.handle_evc_deployed(event) |
|
1040
|
|
|
|
|
1041
|
1 |
|
def handle_evc_deployed(self, event): |
|
1042
|
|
|
"""Setup failover path on evc deployed.""" |
|
1043
|
|
|
evc = self.circuits.get(event.content["evc_id"]) |
|
1044
|
|
|
if not evc: |
|
1045
|
|
|
return |
|
1046
|
1 |
|
evc.try_setup_failover_path() |
|
1047
|
1 |
|
|
|
1048
|
|
|
@listen_to("kytos/mef_eline.cleanup_evcs_old_path") |
|
1049
|
|
|
def on_cleanup_evcs_old_path(self, event): |
|
1050
|
1 |
|
"""Handle cleanup evcs old path.""" |
|
1051
|
1 |
|
self.handle_cleanup_evcs_old_path(event) |
|
1052
|
1 |
|
|
|
1053
|
1 |
|
def handle_cleanup_evcs_old_path(self, event): |
|
1054
|
1 |
|
"""Handle cleanup evcs old path.""" |
|
1055
|
1 |
|
evcs = event.content.get("evcs", []) |
|
1056
|
|
|
event_contents: dict[str, dict] = defaultdict(list) |
|
1057
|
1 |
|
total_flows = {} |
|
1058
|
1 |
|
for evc in evcs: |
|
1059
|
1 |
|
if not evc.old_path: |
|
1060
|
1 |
|
continue |
|
1061
|
|
|
with evc.lock: |
|
1062
|
|
|
removed_flows = {} |
|
1063
|
|
|
try: |
|
1064
|
|
|
nni_flows = prepare_delete_flow( |
|
1065
|
|
|
evc._prepare_nni_flows(evc.old_path) |
|
1066
|
|
|
) |
|
1067
|
|
|
uni_flows = prepare_delete_flow( |
|
1068
|
1 |
|
evc._prepare_uni_flows(evc.old_path, skip_in=True) |
|
1069
|
1 |
|
) |
|
1070
|
|
|
removed_flows = merge_flow_dicts( |
|
1071
|
|
|
nni_flows, uni_flows |
|
1072
|
|
|
) |
|
1073
|
|
|
# pylint: disable=broad-except |
|
1074
|
|
|
except Exception: |
|
1075
|
|
|
err = traceback.format_exc().replace("\n", ", ") |
|
1076
|
1 |
|
log.error(f"Fail to remove {evc} old_path: {err}") |
|
1077
|
1 |
|
continue |
|
1078
|
|
|
if removed_flows: |
|
1079
|
|
|
total_flows = merge_flow_dicts(total_flows, removed_flows) |
|
1080
|
|
|
content = map_evc_event_content( |
|
1081
|
1 |
|
evc, |
|
1082
|
|
|
removed_flows=deepcopy(removed_flows), |
|
1083
|
1 |
|
current_path=evc.current_path.as_dict(), |
|
1084
|
1 |
|
) |
|
1085
|
1 |
|
event_contents[evc.id] = content |
|
1086
|
1 |
|
evc.old_path = Path([]) |
|
1087
|
|
|
if event_contents: |
|
1088
|
1 |
|
send_flow_mods_event(self.controller, total_flows, 'delete') |
|
1089
|
|
|
emit_event(self.controller, "failover_old_path", |
|
1090
|
1 |
|
content=event_contents) |
|
1091
|
1 |
|
|
|
1092
|
|
|
@listen_to("kytos/topology.topology_loaded") |
|
1093
|
1 |
|
def on_topology_loaded(self, event): # pylint: disable=unused-argument |
|
1094
|
1 |
|
"""Load EVCs once the topology is available.""" |
|
1095
|
1 |
|
self.load_all_evcs() |
|
1096
|
1 |
|
|
|
1097
|
|
|
def load_all_evcs(self): |
|
1098
|
|
|
"""Try to load all EVCs on startup.""" |
|
1099
|
|
|
circuits = self.mongo_controller.get_circuits()['circuits'].items() |
|
1100
|
1 |
|
for circuit_id, circuit in circuits: |
|
1101
|
1 |
|
if circuit_id not in self.circuits: |
|
1102
|
1 |
|
self._load_evc(circuit) |
|
1103
|
1 |
|
emit_event(self.controller, "evcs_loaded", content=dict(circuits), |
|
1104
|
1 |
|
timeout=1) |
|
1105
|
1 |
|
|
|
1106
|
1 |
|
def _load_evc(self, circuit_dict): |
|
1107
|
1 |
|
"""Load one EVC from mongodb to memory.""" |
|
1108
|
1 |
|
try: |
|
1109
|
1 |
|
evc = self._evc_from_dict(circuit_dict) |
|
1110
|
1 |
|
except (ValueError, KytosTagError) as exception: |
|
1111
|
|
|
log.error( |
|
1112
|
1 |
|
f"Could not load EVC: dict={circuit_dict} error={exception}" |
|
1113
|
|
|
) |
|
1114
|
1 |
|
return None |
|
1115
|
1 |
|
if evc.archived: |
|
1116
|
1 |
|
return None |
|
1117
|
|
|
|
|
1118
|
1 |
|
self.circuits.setdefault(evc.id, evc) |
|
1119
|
|
|
self.sched.add(evc) |
|
1120
|
1 |
|
return evc |
|
1121
|
1 |
|
|
|
1122
|
|
|
@listen_to("kytos/flow_manager.flow.error") |
|
1123
|
1 |
|
def on_flow_mod_error(self, event): |
|
1124
|
1 |
|
"""Handle flow mod errors related to an EVC.""" |
|
1125
|
1 |
|
self.handle_flow_mod_error(event) |
|
1126
|
1 |
|
|
|
1127
|
1 |
|
def handle_flow_mod_error(self, event): |
|
1128
|
1 |
|
"""Handle flow mod errors related to an EVC.""" |
|
1129
|
|
|
flow = event.content["flow"] |
|
1130
|
|
|
command = event.content.get("error_command") |
|
1131
|
|
|
if command != "add": |
|
1132
|
1 |
|
return |
|
1133
|
1 |
|
evc = self.circuits.get(EVC.get_id_from_cookie(flow.cookie)) |
|
1134
|
1 |
|
if evc: |
|
1135
|
1 |
|
with evc.lock: |
|
1136
|
|
|
evc.remove_current_flows(sync=False) |
|
1137
|
1 |
|
evc.remove_failover_flows(sync=True) |
|
1138
|
1 |
|
|
|
1139
|
1 |
|
def _evc_dict_with_instances(self, evc_dict): |
|
1140
|
1 |
|
"""Convert some dict values to instance of EVC classes. |
|
1141
|
|
|
|
|
1142
|
|
|
This method will convert: [UNI, Link] |
|
1143
|
1 |
|
""" |
|
1144
|
1 |
|
data = evc_dict.copy() # Do not modify the original dict |
|
1145
|
|
|
for attribute, value in data.items(): |
|
1146
|
1 |
|
# Get multiple attributes. |
|
1147
|
|
|
# Ex: uni_a, uni_z |
|
1148
|
|
|
if "uni" in attribute: |
|
1149
|
|
|
try: |
|
1150
|
|
|
data[attribute] = self._uni_from_dict(value) |
|
1151
|
|
|
except ValueError as exception: |
|
1152
|
|
|
result = "Error creating UNI: Invalid value" |
|
1153
|
1 |
|
raise ValueError(result) from exception |
|
1154
|
1 |
|
|
|
1155
|
1 |
|
if attribute == "circuit_scheduler": |
|
1156
|
|
|
data[attribute] = [] |
|
1157
|
|
|
for schedule in value: |
|
1158
|
1 |
|
data[attribute].append(CircuitSchedule.from_dict(schedule)) |
|
1159
|
1 |
|
|
|
1160
|
1 |
|
# Get multiple attributes. |
|
1161
|
1 |
|
# Ex: primary_links, |
|
1162
|
1 |
|
# backup_links, |
|
1163
|
1 |
|
# current_links_cache, |
|
1164
|
1 |
|
# primary_links_cache, |
|
1165
|
1 |
|
# backup_links_cache |
|
1166
|
1 |
|
if "links" in attribute: |
|
1167
|
|
|
data[attribute] = [ |
|
1168
|
1 |
|
self._link_from_dict(link, attribute) for link in value |
|
1169
|
|
|
] |
|
1170
|
|
|
|
|
1171
|
|
|
# Ex: current_path, |
|
1172
|
|
|
# primary_path, |
|
1173
|
|
|
# backup_path |
|
1174
|
1 |
|
if "path" in attribute and attribute != "dynamic_backup_path": |
|
1175
|
|
|
data[attribute] = Path( |
|
1176
|
1 |
|
[self._link_from_dict(link, attribute) for link in value] |
|
1177
|
1 |
|
) |
|
1178
|
1 |
|
|
|
1179
|
1 |
|
return data |
|
1180
|
1 |
|
|
|
1181
|
|
|
def _evc_from_dict(self, evc_dict): |
|
1182
|
|
|
data = self._evc_dict_with_instances(evc_dict) |
|
1183
|
1 |
|
data["table_group"] = self.table_group |
|
1184
|
1 |
|
return EVC(self.controller, **data) |
|
1185
|
|
|
|
|
1186
|
1 |
|
def _uni_from_dict(self, uni_dict): |
|
1187
|
1 |
|
"""Return a UNI object from python dict.""" |
|
1188
|
1 |
|
if uni_dict is None: |
|
1189
|
1 |
|
return False |
|
1190
|
1 |
|
|
|
1191
|
1 |
|
interface_id = uni_dict.get("interface_id") |
|
1192
|
|
|
interface = self.controller.get_interface_by_id(interface_id) |
|
1193
|
|
|
if interface is None: |
|
1194
|
1 |
|
result = ( |
|
1195
|
1 |
|
"Error creating UNI:" |
|
1196
|
1 |
|
+ f"Could not instantiate interface {interface_id}" |
|
1197
|
1 |
|
) |
|
1198
|
1 |
|
raise ValueError(result) from ValueError |
|
1199
|
|
|
tag_convert = {1: "vlan"} |
|
1200
|
|
|
tag_dict = uni_dict.get("tag", None) |
|
1201
|
|
|
if tag_dict: |
|
1202
|
|
|
tag_type = tag_dict.get("tag_type") |
|
1203
|
|
|
tag_type = tag_convert.get(tag_type, tag_type) |
|
1204
|
|
|
tag_value = tag_dict.get("value") |
|
1205
|
|
|
if isinstance(tag_value, list): |
|
1206
|
|
|
tag_value = get_tag_ranges(tag_value) |
|
1207
|
|
|
mask_list = get_vlan_tags_and_masks(tag_value) |
|
1208
|
|
|
tag = TAGRange(tag_type, tag_value, mask_list) |
|
1209
|
|
|
else: |
|
1210
|
|
|
tag = TAG(tag_type, tag_value) |
|
1211
|
|
|
else: |
|
1212
|
|
|
tag = None |
|
1213
|
|
|
uni = UNI(interface, tag) |
|
1214
|
|
|
return uni |
|
1215
|
|
|
|
|
1216
|
|
|
def _link_from_dict(self, link_dict: dict, attribute: str) -> Link: |
|
1217
|
|
|
"""Return a Link object from python dict.""" |
|
1218
|
|
|
id_a = link_dict.get("endpoint_a").get("id") |
|
1219
|
|
|
id_b = link_dict.get("endpoint_b").get("id") |
|
1220
|
|
|
|
|
1221
|
|
|
endpoint_a = self.controller.get_interface_by_id(id_a) |
|
1222
|
|
|
endpoint_b = self.controller.get_interface_by_id(id_b) |
|
1223
|
|
|
if not endpoint_a: |
|
1224
|
|
|
error_msg = f"Could not get interface endpoint_a id {id_a}" |
|
1225
|
|
|
raise ValueError(error_msg) |
|
1226
|
|
|
if not endpoint_b: |
|
1227
|
|
|
error_msg = f"Could not get interface endpoint_b id {id_b}" |
|
1228
|
|
|
raise ValueError(error_msg) |
|
1229
|
|
|
|
|
1230
|
|
|
link = Link(endpoint_a, endpoint_b) |
|
1231
|
|
|
allowed_paths = {"current_path", "failover_path"} |
|
1232
|
|
|
if "metadata" in link_dict and attribute in allowed_paths: |
|
1233
|
|
|
link.extend_metadata(link_dict.get("metadata")) |
|
1234
|
|
|
|
|
1235
|
|
|
s_vlan = link.get_metadata("s_vlan") |
|
1236
|
|
|
if s_vlan: |
|
1237
|
|
|
tag = TAG.from_dict(s_vlan) |
|
1238
|
|
|
if tag is False: |
|
1239
|
|
|
error_msg = f"Could not instantiate tag from dict {s_vlan}" |
|
1240
|
|
|
raise ValueError(error_msg) |
|
1241
|
|
|
link.update_metadata("s_vlan", tag) |
|
1242
|
|
|
return link |
|
1243
|
|
|
|
|
1244
|
|
|
def _find_evc_by_schedule_id(self, schedule_id): |
|
1245
|
|
|
""" |
|
1246
|
|
|
Find an EVC and CircuitSchedule based on schedule_id. |
|
1247
|
|
|
|
|
1248
|
|
|
:param schedule_id: Schedule ID |
|
1249
|
|
|
:return: EVC and Schedule |
|
1250
|
|
|
""" |
|
1251
|
|
|
circuits = self._get_circuits_buffer() |
|
1252
|
|
|
found_schedule = None |
|
1253
|
|
|
evc = None |
|
1254
|
|
|
|
|
1255
|
|
|
# pylint: disable=unused-variable |
|
1256
|
|
|
for c_id, circuit in circuits.items(): |
|
1257
|
|
|
for schedule in circuit.circuit_scheduler: |
|
1258
|
|
|
if schedule.id == schedule_id: |
|
1259
|
|
|
found_schedule = schedule |
|
1260
|
|
|
evc = circuit |
|
1261
|
|
|
break |
|
1262
|
|
|
if found_schedule: |
|
1263
|
|
|
break |
|
1264
|
|
|
return evc, found_schedule |
|
1265
|
|
|
|
|
1266
|
|
|
def _get_circuits_buffer(self): |
|
1267
|
|
|
""" |
|
1268
|
|
|
Return the circuit buffer. |
|
1269
|
|
|
|
|
1270
|
|
|
If the buffer is empty, try to load data from mongodb. |
|
1271
|
|
|
""" |
|
1272
|
|
|
if not self.circuits: |
|
1273
|
|
|
# Load circuits from mongodb to buffer |
|
1274
|
|
|
circuits = self.mongo_controller.get_circuits()['circuits'] |
|
1275
|
|
|
for c_id, circuit in circuits.items(): |
|
1276
|
|
|
evc = self._evc_from_dict(circuit) |
|
1277
|
|
|
self.circuits[c_id] = evc |
|
1278
|
|
|
return self.circuits |
|
1279
|
|
|
|
|
1280
|
|
|
# pylint: disable=attribute-defined-outside-init |
|
1281
|
|
|
@alisten_to("kytos/of_multi_table.enable_table") |
|
1282
|
|
|
async def on_table_enabled(self, event): |
|
1283
|
|
|
"""Handle a recently table enabled.""" |
|
1284
|
|
|
table_group = event.content.get("mef_eline", None) |
|
1285
|
|
|
if not table_group: |
|
1286
|
|
|
return |
|
1287
|
|
|
for group in table_group: |
|
1288
|
|
|
if group not in settings.TABLE_GROUP_ALLOWED: |
|
1289
|
|
|
log.error(f'The table group "{group}" is not allowed for ' |
|
1290
|
|
|
f'mef_eline. Allowed table groups are ' |
|
1291
|
|
|
f'{settings.TABLE_GROUP_ALLOWED}') |
|
1292
|
|
|
return |
|
1293
|
|
|
self.table_group.update(table_group) |
|
1294
|
|
|
content = {"group_table": self.table_group} |
|
1295
|
|
|
name = "kytos/mef_eline.enable_table" |
|
1296
|
|
|
await aemit_event(self.controller, name, content) |
|
1297
|
|
|
|
kytos-ng /
mef_eline
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