blob: 686afcf89cea36780b7e021a29abc4cf388d0ffc [file] [log] [blame]
# Copyright 2017-present Open Networking Foundation
#
# 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.
from time import sleep
import requests
from multistructlog import create_logger
from requests.auth import HTTPBasicAuth
from xossynchronizer.steps.syncstep import SyncStep, DeferredException
from xossynchronizer.modelaccessor import OLTDevice, model_accessor
from xosconfig import Config
import os, sys
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from helpers import Helpers
log = create_logger(Config().get('logging'))
class SyncOLTDevice(SyncStep):
provides = [OLTDevice]
observes = OLTDevice
max_attempt = 120 # we give 10 minutes to the OLT to activate
@staticmethod
def get_ids_from_logical_device(o):
voltha = Helpers.get_voltha_info(o.volt_service)
request = requests.get("%s:%d/api/v1/logical_devices" % (voltha['url'], voltha['port']))
if request.status_code != 200:
raise Exception("Failed to retrieve logical devices from VOLTHA: %s" % request.text)
response = request.json()
for ld in response["items"]:
if ld["root_device_id"] == o.device_id:
o.of_id = ld["id"]
o.dp_id = "of:%s" % (Helpers.datapath_id_to_hex(ld["datapath_id"])) # Convert to hex
return o
raise Exception("Can't find a logical_device for OLT device id: %s" % o.device_id)
def pre_provision_olt_device(self, model):
log.info("Pre-provisioning OLT device in VOLTHA", object=str(model), **model.tologdict())
voltha = Helpers.get_voltha_info(model.volt_service)
data = {
"type": model.device_type
}
if hasattr(model, "host") and hasattr(model, "port"):
data["host_and_port"] = "%s:%s" % (model.host, model.port)
elif hasattr(model, "mac_address"):
data["mac_address"] = model.mac_address
log.info("Pushing OLT to Voltha", data=data)
request = requests.post("%s:%d/api/v1/devices" % (voltha['url'], voltha['port']), json=data)
if request.status_code != 200:
raise Exception("Failed to add OLT device: %s" % request.text)
log.info("Add device response", text=request.text)
res = request.json()
log.info("Add device json res", res=res)
# TODO(smbaker): Potential partial failure. If device is created in Voltha but synchronizer crashes before the
# model is saved, then synchronizer will continue to try to preprovision and fail due to preexisting
# device.
if not res['id']:
raise Exception(
'VOLTHA Device Id is empty. This probably means that the OLT device is already provisioned in VOLTHA')
else:
model.device_id = res['id']
model.serial_number = res['serial_number']
model.save_changed_fields()
def activate_olt(self, model):
attempted = 0
voltha = Helpers.get_voltha_info(model.volt_service)
# Enable device
request = requests.post("%s:%d/api/v1/devices/%s/enable" % (voltha['url'], voltha['port'], model.device_id))
if request.status_code != 200:
raise Exception("Failed to enable OLT device: %s" % request.text)
model.backend_status = "Waiting for device to be activated"
model.save_changed_fields(always_update_timestamp=False) # we don't want to kickoff a new loop
# Read state
request = requests.get("%s:%d/api/v1/devices/%s" % (voltha['url'], voltha['port'], model.device_id)).json()
while request['oper_status'] == "ACTIVATING" and attempted < self.max_attempt:
log.info("Waiting for OLT device %s (%s) to activate" % (model.name, model.device_id))
sleep(5)
request = requests.get("%s:%d/api/v1/devices/%s" % (voltha['url'], voltha['port'], model.device_id)).json()
attempted = attempted + 1
model.oper_status = request['oper_status']
model.serial_number = request['serial_number']
if model.oper_status != "ACTIVE":
raise Exception("It was not possible to activate OLTDevice with id %s" % model.id)
# Find the of_id of the device
self.get_ids_from_logical_device(model)
model.save_changed_fields()
def deactivate_olt(self, model):
voltha = Helpers.get_voltha_info(model.volt_service)
# Disable device
request = requests.post("%s:%d/api/v1/devices/%s/disable" % (voltha['url'], voltha['port'], model.device_id))
if request.status_code != 200:
raise Exception("Failed to disable OLT device: %s" % request.text)
def configure_onos(self, model):
log.info("Adding OLT device in onos-voltha", object=str(model), **model.tologdict())
onos_voltha = Helpers.get_onos_voltha_info(model.volt_service)
onos_voltha_basic_auth = HTTPBasicAuth(onos_voltha['user'], onos_voltha['pass'])
# Add device info to onos-voltha
data = {
"devices": {
model.dp_id: {
"basic": {
"name": model.name
}
}
}
}
log.info("Calling ONOS", data=data)
url = "%s:%d/onos/v1/network/configuration/" % (onos_voltha['url'], onos_voltha['port'])
request = requests.post(url, json=data, auth=onos_voltha_basic_auth)
if request.status_code != 200:
log.error(request.text)
raise Exception("Failed to add OLT device %s into ONOS" % model.name)
else:
try:
print request.json()
except Exception:
print request.text
def sync_record(self, model):
log.info("Synching device", object=str(model), **model.tologdict())
if model.admin_state not in ["ENABLED", "DISABLED"]:
raise Exception("OLT Device %s admin_state has invalid value %s" % (model.id, model.admin_state))
# If the device has feedback_state is already present in voltha
if not model.device_id and not model.oper_status and not model.of_id:
log.info("Pushing OLT device to VOLTHA", object=str(model), **model.tologdict())
self.pre_provision_olt_device(model)
model.oper_status = "UNKNOWN" # fall-though to activate OLT
else:
log.info("OLT device already exists in VOLTHA", object=str(model), **model.tologdict())
# Reconcile admin_state and oper_status, activating or deactivating the OLT as necessary.
if model.oper_status != "ACTIVE" and model.admin_state == "ENABLED":
self.activate_olt(model)
elif model.oper_status == "ACTIVE" and model.admin_state == "DISABLED":
self.deactivate_olt(model)
if model.admin_state == "ENABLED":
# If we were not able to reconcile ENABLE/ACTIVE, then throw an exception and do not proceed to onos
# configuration.
if model.oper_status != "ACTIVE":
raise Exception("It was not possible to activate OLTDevice with id %s" % model.id)
# At this point OLT is enabled and active. Configure ONOS.
self.configure_onos(model)
def delete_record(self, model):
log.info("Deleting OLT device", object=str(model), **model.tologdict())
voltha = Helpers.get_voltha_info(model.volt_service)
if not model.device_id or model.backend_code == 2:
# NOTE if the device was not synchronized, just remove it from the data model
log.warning("OLTDevice %s has no device_id, it was never saved in VOLTHA" % model.name)
return
else:
try:
# Disable the OLT device
request = requests.post("%s:%d/api/v1/devices/%s/disable" % (voltha['url'], voltha['port'], model.device_id))
if request.status_code != 200:
log.error("Failed to disable OLT device in VOLTHA: %s - %s" % (model.name, model.device_id), rest_response=request.text, rest_status_code=request.status_code)
raise Exception("Failed to disable OLT device in VOLTHA")
# NOTE [teo] wait some time after the disable to let VOLTHA doing its things
i = 0
for i in list(reversed(range(10))):
sleep(1)
log.info("Deleting the OLT in %s seconds" % i)
# Delete the OLT device
request = requests.delete("%s:%d/api/v1/devices/%s/delete" % (voltha['url'], voltha['port'], model.device_id))
if request.status_code != 200:
log.error("Failed to delete OLT device from VOLTHA: %s - %s" % (model.name, model.device_id), rest_response=request.text, rest_status_code=request.status_code)
raise Exception("Failed to delete OLT device from VOLTHA")
except requests.ConnectionError:
log.warning("ConnectionError when contacting Voltha in OLT delete step", name=model.name, device_id=model.device_id)