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 SyncNetworkDeployments(OpenStackSyncStep):
16 requested_interval = 0
17 provides=[Network, NetworkDeployments, Sliver]
19 def fetch_pending(self, deleted):
21 return NetworkDeployments.deleted_objects.all()
23 # network deployments are not visible to users. We must ensure
24 # networks are deployed at all deploymets available to their slices.
25 slice_deployments = SliceDeployments.objects.all()
26 slice_deploy_lookup = defaultdict(list)
27 for slice_deployment in slice_deployments:
28 slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment)
30 network_deployments = NetworkDeployments.objects.all()
31 network_deploy_lookup = defaultdict(list)
32 for network_deployment in network_deployments:
33 network_deploy_lookup[network_deployment.network].append(network_deployment.deployment)
35 for network in Network.objects.filter():
36 # ignore networks that have
37 # template.visibility = private and translation = none
38 if network.template.visibility == 'private' and not network.template.translation == 'none':
40 expected_deployments = slice_deploy_lookup[network.owner]
41 for expected_deployment in expected_deployments:
42 if network not in network_deploy_lookup or \
43 expected_deployment not in network_deploy_lookup[network]:
44 nd = NetworkDeployments(network=network, deployment=expected_deployment)
46 return NetworkDeployments.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
48 def get_next_subnet(self, deployment=None):
49 # limit ourself to 10.0.x.x for now
50 valid_subnet = lambda net: net.startswith('10.0')
51 driver = self.driver.admin_driver(deployment=deployment)
52 subnets = driver.shell.quantum.list_subnets()['subnets']
53 ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
54 if valid_subnet(subnet['cidr'])]
57 last_ip = IPAddress(ints[-1])
59 last_ip = IPAddress('10.0.0.0')
60 last_network = IPNetwork(str(last_ip) + "/24")
61 next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
64 def save_network_deployment(self, network_deployment):
65 if not network_deployment.network_id and network_deployment.network.template.sharedNetworkName:
66 network_deployment.network_id = network_deployment.network.template.sharedNetworkId
68 if not network_deployment.net_id:
69 network_name = network_deployment.network.name
72 os_network = self.driver.create_network(network_name, shared=True)
73 network_deployment.net_id = os_network['id']
76 #router = self.driver.create_router(network_name)
77 #network_deployment.router_id = router['id']
80 next_subnet = self.get_next_subnet(deployment=network_deployment.deployment.name)
81 cidr = str(next_subnet.cidr)
82 ip_version = next_subnet.version
83 start = str(next_subnet[2])
84 end = str(next_subnet[-2])
85 subnet = self.driver.create_subnet(name=network_name,
86 network_id = network_deployment.net_id,
88 ip_version = ip_version,
91 network_deployment.subnet = cidr
92 network_deployment.subnet_id = subnet['id']
93 # add subnet as interface to slice's router
94 #self.driver.add_router_interface(router['id'], subnet['id'])
96 #self.driver.add_external_route(subnet)
97 logger.info("created private subnet (%s) for network: %s" % (cidr, network_deployment.network))
99 (network_deployment.subnet_id, network_deployment.subnet) = self.driver.get_network_subnet(network_deployment.net_id)
100 logger.info("sync'ed subnet (%s) for network: %s" % (network_deployment.subnet, network_deployment.network))
102 network_deployment.save()
104 def sync_record(self, network_deployment):
105 if network_deployment.network.owner and network_deployment.network.owner.creator:
107 # update manager context
108 real_driver = self.driver
109 self.driver = self.driver.client_driver(caller=network_deployment.network.owner.creator,
110 tenant=network_deployment.network.owner.name,
111 deployment=network_deployment.deployment.name)
112 self.save_network_deployment(network_deployment)
113 self.driver = real_driver
114 logger.info("saved network deployment: %s" % (network_deployment))
116 logger.log_exc("save network deployment failed: %s" % network_deployment)
120 def delete_record(self, network_deployment):
121 driver = OpenStackDriver().client_driver(caller=network_deployment.network.owner.creator,
122 tenant=network_deployment.network.owner.name,
123 deployment=network_deployment.deployment.name)
124 if (network_deployment.router_id) and (network_deployment.subnet_id):
125 driver.delete_router_interface(network_deployment.router_id, network_deployment.subnet_id)
126 if network_deployment.subnet_id:
127 driver.delete_subnet(network_deployment.subnet_id)
128 if network_deployment.router_id:
129 driver.delete_router(network_deployment.router_id)
130 if network_deployment.net_id:
131 driver.delete_network(network_deployment.net_id)