blob: 367440de8fc1e890a86275de4661c4487b5d5ff1 [file] [log] [blame]
import os
import base64
from collections import defaultdict
from netaddr import IPAddress, IPNetwork
from django.db.models import F, Q
from planetstack.config import Config
from observer.openstacksyncstep import OpenStackSyncStep
from core.models.network import *
from core.models.slice import *
from core.models.sliver import Sliver
from util.logger import Logger, logging
logger = Logger(level=logging.INFO)
class SyncNetworkDeployments(OpenStackSyncStep):
requested_interval = 0
provides=[Network, NetworkDeployments, Sliver]
def fetch_pending(self, deleted):
if (deleted):
return NetworkDeployments.deleted_objects.all()
else:
# network deployments are not visible to users. We must ensure
# networks are deployed at all deploymets available to their slices.
slice_deployments = SliceDeployments.objects.all()
slice_deploy_lookup = defaultdict(list)
for slice_deployment in slice_deployments:
slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment)
network_deployments = NetworkDeployments.objects.all()
network_deploy_lookup = defaultdict(list)
for network_deployment in network_deployments:
network_deploy_lookup[network_deployment.network].append(network_deployment.deployment)
for network in Network.objects.filter():
expected_deployments = slice_deploy_lookup[network.owner]
for expected_deployment in expected_deployments:
if network not in network_deploy_lookup or \
expected_deployment not in network_deploy_lookup[network]:
nd = NetworkDeployments(network=network, deployment=expected_deployment)
nd.save()
return NetworkDeployments.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
def get_next_subnet(self, deployment=None):
# limit ourself to 10.0.x.x for now
valid_subnet = lambda net: net.startswith('10.0')
driver = self.driver.admin_driver(deployment=deployment)
subnets = driver.shell.quantum.list_subnets()['subnets']
ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
if valid_subnet(subnet['cidr'])]
ints.sort()
if ints:
last_ip = IPAddress(ints[-1])
else:
last_ip = IPAddress('10.0.0.0')
last_network = IPNetwork(str(last_ip) + "/24")
next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
return next_network
def save_network_deployment(self, network_deployment):
if (not network_deployment.net_id) and network_deployment.network.template.sharedNetworkName:
# It's a shared network, try to find the shared network id
quantum_networks = self.driver.shell.quantum.list_networks(name=network_deployment.network.template.sharedNetworkName)["networks"]
if quantum_networks:
logger.info("set shared network id %s" % quantum_networks[0]["id"])
network_deployment.net_id = quantum_networks[0]["id"]
else:
logger.info("failed to find shared network id for deployment")
return
# At this point, it must be a private network, so create it if it does
# not exist.
if not network_deployment.net_id:
network_name = network_deployment.network.name
# create network
os_network = self.driver.create_network(network_name, shared=True)
network_deployment.net_id = os_network['id']
# create router
#router = self.driver.create_router(network_name)
#network_deployment.router_id = router['id']
# create subnet
next_subnet = self.get_next_subnet(deployment=network_deployment.deployment.name)
cidr = str(next_subnet.cidr)
ip_version = next_subnet.version
start = str(next_subnet[2])
end = str(next_subnet[-2])
subnet = self.driver.create_subnet(name=network_name,
network_id = network_deployment.net_id,
cidr_ip = cidr,
ip_version = ip_version,
start = start,
end = end)
network_deployment.subnet = cidr
network_deployment.subnet_id = subnet['id']
# add subnet as interface to slice's router
#self.driver.add_router_interface(router['id'], subnet['id'])
# add external route
#self.driver.add_external_route(subnet)
logger.info("created private subnet (%s) for network: %s" % (cidr, network_deployment.network))
# Now, figure out the subnet and subnet_id for the network. This works
# for both private and shared networks.
if (not network_deployment.subnet_id) or (not network_deployment.subnet):
(network_deployment.subnet_id, network_deployment.subnet) = self.driver.get_network_subnet(network_deployment.net_id)
logger.info("sync'ed subnet (%s) for network: %s" % (network_deployment.subnet, network_deployment.network))
if (not network_deployment.subnet):
# this will generate a non-null database constraint error
# ... which in turn leads to transaction errors
# it's probably caused by networks that no longer exist at the
# quantum level.
logger.info("null subnet for network %s, skipping save" % network_deployment.network)
return
network_deployment.save()
def sync_record(self, network_deployment):
if network_deployment.network.owner and network_deployment.network.owner.creator:
try:
# update manager context
real_driver = self.driver
self.driver = self.driver.client_driver(caller=network_deployment.network.owner.creator,
tenant=network_deployment.network.owner.name,
deployment=network_deployment.deployment.name)
self.save_network_deployment(network_deployment)
self.driver = real_driver
logger.info("saved network deployment: %s" % (network_deployment))
except Exception,e:
logger.log_exc("save network deployment failed: %s" % network_deployment)
raise e
def delete_record(self, network_deployment):
driver = OpenStackDriver().client_driver(caller=network_deployment.network.owner.creator,
tenant=network_deployment.network.owner.name,
deployment=network_deployment.deployment.name)
if (network_deployment.router_id) and (network_deployment.subnet_id):
driver.delete_router_interface(network_deployment.router_id, network_deployment.subnet_id)
if network_deployment.subnet_id:
driver.delete_subnet(network_deployment.subnet_id)
if network_deployment.router_id:
driver.delete_router(network_deployment.router_id)
if network_deployment.net_id:
driver.delete_network(network_deployment.net_id)