3 from collections import defaultdict
4 from netaddr import IPAddress, IPNetwork
5 from django.db.models import F, Q
6 from planetstack.config import Config
7 from observer.openstacksyncstep import OpenStackSyncStep
8 from core.models.network import *
9 from core.models.slice import *
10 from core.models.sliver import Sliver
11 from util.logger import Logger, logging
13 logger = Logger(level=logging.INFO)
15 class SyncControllerNetworks(OpenStackSyncStep):
16 requested_interval = 0
17 provides=[Network, ControllerNetworks, Sliver]
19 def fetch_pending(self, deleted):
21 return ControllerNetworks.deleted_objects.all()
23 return ControllerNetworks.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
25 def get_next_subnet(self, controller=None):
26 # limit ourself to 10.0.x.x for now
27 valid_subnet = lambda net: net.startswith('10.0')
29 driver = self.driver.admin_driver(controller=controller,tenant='admin')
30 subnets = driver.shell.quantum.list_subnets()['subnets']
31 ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
32 if valid_subnet(subnet['cidr'])]
35 last_ip = IPAddress(ints[-1])
37 last_ip = IPAddress('10.0.0.0')
38 last_network = IPNetwork(str(last_ip) + "/24")
39 next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
42 def save_controller_network(self, controller_network):
43 if (not controller_network.net_id) and controller_network.network.template.sharedNetworkName:
44 # It's a shared network, try to find the shared network id
46 quantum_networks = self.driver.shell.quantum.list_networks(name=controller_network.network.template.sharedNetworkName)["networks"]
48 logger.info("set shared network id %s" % quantum_networks[0]["id"])
49 controller_network.net_id = quantum_networks[0]["id"]
51 logger.info("failed to find shared network id for controller")
54 # At this point, it must be a private network, so create it if it does
57 if not controller_network.net_id:
58 network_name = controller_network.network.name
61 os_network = self.driver.create_network(network_name, shared=True)
62 controller_network.net_id = os_network['id']
65 #router = self.driver.create_router(network_name)
66 #controller_network.router_id = router['id']
69 next_subnet = self.get_next_subnet(controller=controller_network.controller.name)
70 cidr = str(next_subnet.cidr)
71 ip_version = next_subnet.version
72 start = str(next_subnet[2])
73 end = str(next_subnet[-2])
74 subnet = self.driver.create_subnet(name=network_name,
75 network_id = controller_network.net_id,
77 ip_version = ip_version,
80 controller_network.subnet = cidr
81 controller_network.subnet_id = subnet['id']
82 # add subnet as interface to slice's router
83 #self.driver.add_router_interface(router['id'], subnet['id'])
85 #self.driver.add_external_route(subnet)
86 logger.info("created private subnet (%s) for network: %s" % (cidr, controller_network.network))
88 # Now, figure out the subnet and subnet_id for the network. This works
89 # for both private and shared networks.
91 if (not controller_network.subnet_id) or (not controller_network.subnet):
92 (controller_network.subnet_id, controller_network.subnet) = self.driver.get_network_subnet(controller_network.net_id)
93 logger.info("sync'ed subnet (%s) for network: %s" % (controller_network.subnet, controller_network.network))
95 if (not controller_network.subnet):
96 # this will generate a non-null database constraint error
97 # ... which in turn leads to transaction errors
98 # it's probably caused by networks that no longer exist at the
101 logger.info("null subnet for network %s, skipping save" % controller_network.network)
104 controller_network.save()
106 def sync_record(self, controller_network):
107 logger.info("sync'ing network controller %s for network %s slice %s controller %s" % (controller_network, controller_network.network, str(controller_network.network.owner), controller_network.controller))
109 if not controller_network.controller.admin_user:
110 logger.info("controller %r has no admin_user, skipping" % controller_network.controller)
113 self.driver = self.driver.admin_driver(controller=controller_network.controller,tenant='admin')
114 if controller_network.network.owner and controller_network.network.owner.creator:
116 # update manager context
118 self.save_controller_network(controller_network)
119 logger.info("saved network controller: %s" % (controller_network))
121 logger.log_exc("save network controller failed: %s" % controller_network)
125 def delete_record(self, controller_network):
126 driver = OpenStackDriver().client_driver(caller=controller_network.network.owner.creator,
127 tenant=controller_network.network.owner.name,
128 controller=controller_network.controller.name)
129 if (controller_network.router_id) and (controller_network.subnet_id):
130 driver.delete_router_interface(controller_network.router_id, controller_network.subnet_id)
131 if controller_network.subnet_id:
132 driver.delete_subnet(controller_network.subnet_id)
133 if controller_network.router_id:
134 driver.delete_router(controller_network.router_id)
135 if controller_network.net_id:
136 driver.delete_network(controller_network.net_id)