blob: 82f0d67b03ac790816747c63ed54be119ed8da3d [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.
import requests
from synchronizers.new_base.syncstep import SyncStep, DeferredException
from synchronizers.new_base.modelaccessor import *
from xos.logger import Logger, logging
logger = Logger(level=logging.INFO)
DATAPLANE_IP = "dataPlaneIp"
PREFIX = "prefix"
NEXT_HOP = "nextHop"
class SyncAddressManagerServiceInstance(SyncStep):
provides=[AddressManagerServiceInstance]
observes = AddressManagerServiceInstance
requested_interval=30
def get_fabric_onos_service_internal(self):
# There will be a ServiceInstanceLink from the FabricService to the Fabric ONOS App
fs = FabricService.objects.first()
for link in fs.subscribed_links.all():
if link.provider_service_instance:
# cast from ServiceInstance to ONOSApp
service_instance = link.provider_service_instance.leaf_model
# cast from Service to ONOSService
return service_instance.owner.leaf_model
return None
def get_fabric_onos_service(self):
fos = self.get_fabric_onos_service_internal()
if not fos:
raise Exception("Fabric ONOS service not found")
return fos
def get_node_tag(self, node, tagname):
tags = Tag.objects.filter(content_type=model_accessor.get_content_type_id(node),
object_id=node.id,
name=tagname)
if tags:
return tags[0].value
else:
return None
def fetch_pending(self, deleted):
# If fetch_pending is being called for delete, then just execute the standard delete logic.
if deleted:
return super(SyncAddressManagerServiceInstance, self).fetch_pending(deleted)
fs = FabricService.objects.first()
if (not fs) or (not fs.autoconfig):
logger.info("Not FabricServer or not autoconfig. Returning []");
return []
objs = super(SyncAddressManagerServiceInstance, self).fetch_pending(deleted)
objs = list(objs)
# Check that each is a valid VSG tenant or instance
for address_si in objs:
sub = self.get_subscriber(address_si)
if sub:
if not sub.instance:
logger.info("Skipping %s because it has no instance" % address_si)
objs.remove(address_si)
else:
# Maybe the Address is for an instance
# TODO: tenant_for_instance_id needs to be a real database field
instance_id = address_si.get_attribute("tenant_for_instance_id")
if not instance_id:
logger.info("Skipping %s because it has no tenant_for_instance_id" % address_si)
objs.remove(address_si)
else:
instance = Instance.objects.filter(id=instance_id)[0]
if not instance.instance_name:
logger.info("Skipping %s because it has no instance.instance_name" % address_si)
objs.remove(address_si)
return objs
def get_subscriber(self, address_si):
links = address_si.provided_links.all()
for link in links:
if not link.subscriber_service_instance:
continue
# cast from ServiceInstance to VSGTEnant or similar
sub = link.subscriber_service_instance.leaf_model
# TODO: check here to make sure it's an appropriate type of ServiceInstance ?
return sub
return None
def get_routes_url(self, fos):
url = 'http://%s:%s/onos/v1/routes' % (fos.rest_hostname, fos.rest_port)
logger.info("url: %s" % url)
return url
def sync_record(self, address_si):
fos = self.get_fabric_onos_service()
data = self.map_tenant_to_route(address_si)
r = self.post_route(fos, data)
logger.info("Posted %s: status: %s result '%s'" % (address_si, r.status_code, r.text))
def delete_record(self, address_si):
pass
# Disabled for now due to lack of feedback state field
# self.delete_route(self.get_fabric_onos_service(), self.map_tenant_to_route(address_si))
def map_tenant_to_route(self, address_si):
instance = None
# Address setup is kind of hacky right now, we'll
# need to revisit. The idea is:
# * Look up the instance corresponding to the address
# * Look up the node running the instance
# * Get the "dataPlaneIp" tag, push to the fabric
sub = self.get_subscriber(address_si)
if sub:
instance = sub.instance
else:
instance_id = address_si.get_attribute("tenant_for_instance_id")
instance = Instance.objects.filter(id=instance_id)[0]
node = instance.node
dataPlaneIp = self.get_node_tag(node, DATAPLANE_IP)
if not dataPlaneIp:
raise DeferredException("No IP found for node %s tenant %s -- skipping" % (str(node), str(address_si)))
data = {
PREFIX : "%s/32" % address_si.public_ip,
NEXT_HOP : dataPlaneIp.split('/')[0]
}
return data
def delete_route(self, fos, route):
url = self.get_routes_url(fos)
r = requests.delete(url, json=route, auth=(fos.rest_username, fos.rest_password))
logger.info("status: %s" % r.status_code)
logger.info('result: %s' % r.text)
return r
def post_route(self, fos, route):
url = self.get_routes_url(fos)
return requests.post(url, json=route, auth=(fos.rest_username, fos.rest_password))