blob: ba254beb265aa3803fb3a6087e3f866b2d4165be [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 os
import requests
import socket
import sys
import base64
import json
from synchronizers.new_base.syncstep import DeferredException
from synchronizers.new_base.syncstep import SyncStep
from synchronizers.new_base.modelaccessor import *
from xos.logger import Logger, logging
logger = Logger(level=logging.INFO)
class SyncONOSNetcfg(SyncStep):
provides=[VTNService]
observes=VTNService
watches=[ModelLink(Node,via='node'), ModelLink(AddressPool,via='addresspool')]
requested_interval=0
def __init__(self, **args):
SyncStep.__init__(self, **args)
def handle_watched_object(self, o):
logger.info("handle_watched_object is invoked for object %s" % (str(o)),extra=o.tologdict())
if (type(o) is Node): # For Node add/delete/modify
self.call()
if (type(o) is AddressPool): # For public gateways
self.call()
def get_service_instances_who_want_config(self):
service_instances = []
# attribute is comma-separated list
for ta in ServiceInstanceAttribute.objects.filter(name="autogenerate"):
if ta.value:
for config in ta.value.split(','):
if config == "vtn-network-cfg":
service_instances.append(ta.service_instance)
return service_instances
def save_service_instance_attribute(self, service_instance, name, value):
# returns True if something changed
something_changed=False
tas = ServiceInstanceAttribute.objects.filter(service_instance_id=service_instance.id, name=name)
if tas:
ta = tas[0]
if ta.value != value:
logger.info("updating %s with attribute" % name)
ta.value = value
ta.save(update_fields=["value", "updated"], always_update_timestamp=True)
something_changed = True
else:
logger.info("saving autogenerated config %s" % name)
ta = model_accessor.create_obj(ServiceInstanceAttribute, service_instance=service_instance, name=name, value=value)
ta.save()
something_changed = True
return something_changed
# This function currently assumes a single Deployment and Site
def get_onos_netcfg(self, vtn):
privateGatewayMac = vtn.privateGatewayMac
localManagementIp = vtn.localManagementIp
ovsdbPort = vtn.ovsdbPort
sshPort = vtn.sshPort
sshUser = vtn.sshUser
sshKeyFile = vtn.sshKeyFile
mgmtSubnetBits = vtn.mgmtSubnetBits
xosEndpoint = vtn.xosEndpoint
xosUser = vtn.xosUser
xosPassword = vtn.xosPassword
controllerPort = vtn.controllerPort
if ":" in controllerPort:
(c_hostname, c_port) = controllerPort.split(":",1)
controllerPort = socket.gethostbyname(c_hostname) + ":" + c_port
else:
controllerPort = ":" + controllerPort
data = {
"apps" : {
"org.opencord.vtn" : {
"cordvtn" : {
"privateGatewayMac" : privateGatewayMac,
"localManagementIp": localManagementIp,
"ovsdbPort": ovsdbPort,
"ssh": {
"sshPort": sshPort,
"sshUser": sshUser,
"sshKeyFile": sshKeyFile
},
"xos": {
"endpoint": xosEndpoint,
"user": xosUser,
"password": xosPassword
},
"publicGateways": [],
"nodes" : [],
"controllers": [controllerPort]
}
}
}
}
# Generate apps->org.opencord.vtn->cordvtn->openstack
controllers = Controller.objects.all()
if controllers:
controller = controllers[0]
keystone_server = controller.auth_url
user_name = controller.admin_user
tenant_name = controller.admin_tenant
password = controller.admin_password
openstack = {
"endpoint": keystone_server,
"tenant": tenant_name,
"user": user_name,
"password": password
}
data["apps"]["org.opencord.vtn"]["cordvtn"]["openstack"] = openstack
# Generate apps->org.opencord.vtn->cordvtn->nodes
nodes = Node.objects.all()
for node in nodes:
try:
nodeip = socket.gethostbyname(node.name)
except socket.gaierror:
logger.warn("unable to resolve hostname %s: node will not be added to config"
% node.name)
continue
try:
bridgeId = node.bridgeId
dataPlaneIntf = node.dataPlaneIntf
dataPlaneIp = node.dataPlaneIp
except:
logger.error("not adding node %s to the VTN configuration" % node.name)
continue
node_dict = {
"hostname": node.name,
"hostManagementIp": "%s/%s" % (nodeip, mgmtSubnetBits),
"bridgeId": bridgeId,
"dataPlaneIntf": dataPlaneIntf,
"dataPlaneIp": dataPlaneIp
}
# this one is optional
try:
node_dict["hostManagementIface"] = node.hostManagementIface
except AttributeError:
pass
data["apps"]["org.opencord.vtn"]["cordvtn"]["nodes"].append(node_dict)
if not (data["apps"]["org.opencord.vtn"]["cordvtn"]["nodes"]):
raise DeferredException("Waiting for there to be valid nodes")
# Generate apps->org.onosproject.cordvtn->cordvtn->publicGateways
# Pull the gateway information from Address Pool objects
for ap in AddressPool.objects.all():
if (not ap.gateway_ip) or (not ap.gateway_mac):
logger.info("Gateway_ip or gateway_mac is blank for addresspool %s. Skipping." % ap)
continue
gateway_dict = {
"gatewayIp": ap.gateway_ip,
"gatewayMac": ap.gateway_mac
}
data["apps"]["org.opencord.vtn"]["cordvtn"]["publicGateways"].append(gateway_dict)
if not AddressPool.objects.all().exists():
logger.info("No Address Pools present, not adding publicGateways to config")
return json.dumps(data, indent=4, sort_keys=True)
# TODO: Does this step execute every 5 seconds regardless of whether objects have changed?
# If so, what purpose does using watchers serve?
def call(self, **args):
vtn_service = VTNService.objects.all()
if not vtn_service:
raise Exception("No VTN Service")
vtn_service = vtn_service[0]
# Check for autogenerate attribute
netcfg = self.get_onos_netcfg(vtn_service)
service_instances = self.get_service_instances_who_want_config()
for service_instance in service_instances:
something_changed = self.save_service_instance_attribute(service_instance, "rest_onos/v1/network/configuration/", netcfg)
if (something_changed):
# make sure we cause the ServiceInstance to be updated as well as the attribute
# TODO: revisit this after synchronizer multi-object-watching is complete
service_instance.save(update_fields=["updated"], always_update_timestamp=True)