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.site import SiteDeployments
9 from core.models.slice import Slice, SliceDeployments
10 from core.models.user import UserDeployments
11 from util.logger import Logger, logging
13 logger = Logger(level=logging.INFO)
15 class SyncSliceDeployments(OpenStackSyncStep):
16 provides=[Slice, SliceDeployments]
19 def fetch_pending(self):
20 # slice deployments are not visible to users. We must ensure
21 # slices are deployed at all deploymets available to their site.
22 site_deployments = SiteDeployments.objects.all()
23 site_deploy_lookup = defaultdict(list)
24 for site_deployment in site_deployments:
25 site_deploy_lookup[site_deployment.site].append(site_deployment.deployment)
27 slice_deployments = SliceDeployments.objects.all()
28 slice_deploy_lookup = defaultdict(list)
29 for slice_deployment in slice_deployments:
30 slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment)
32 for slice in Slice.objects.all():
33 expected_deployments = site_deploy_lookup[slice.site]
34 for expected_deployment in expected_deployments:
35 if slice not in slice_deploy_lookup or \
36 expected_deployment not in slice_deploy_lookup[slice]:
37 sd = SliceDeployments(slice=slice, deployment=expected_deployment)
40 # now we can return all slice deployments that need to be enacted
41 return SliceDeployments.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
43 def get_next_subnet(self, deployment=None):
44 # limit ourself to 10.0.x.x for now
45 valid_subnet = lambda net: net.startswith('10.0')
46 driver = self.driver.admin_driver(deployment=deployment)
47 subnets = driver.shell.quantum.list_subnets()['subnets']
48 ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
49 if valid_subnet(subnet['cidr'])]
51 last_ip = IPAddress(ints[-1])
52 last_network = IPNetwork(str(last_ip) + "/24")
53 next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
56 def sync_record(self, slice_deployment):
57 logger.info("sync'ing slice deployment %s" % slice_deployment)
58 if not slice_deployment.tenant_id:
59 nova_fields = {'tenant_name': slice_deployment.slice.name,
60 'description': slice_deployment.slice.description,
61 'enabled': slice_deployment.slice.enabled}
62 driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
63 tenant = driver.create_tenant(**nova_fields)
64 slice_deployment.tenant_id = tenant.id
66 # XXX give caller an admin role at the tenant they've created
67 deployment_users = UserDeployments.objects.filter(user=slice_deployment.slice.creator,
68 deployment=slice_deployment.deployment)
69 if not deployment_users:
70 logger.info("slice createor %s has not accout at deployment %s" % (slice_deployment.slice.creator, slice_deployment.deployment.name))
72 # lookup user id at this deployment
73 kuser= driver.shell.keystone.users.find(email=slice_deployment.slice.creator.email)
74 driver.add_user_role(kuser.id, tenant.id, 'admin')
76 # refresh credentials using this tenant
77 client_driver = self.driver.client_driver(tenant=tenant.name,
78 deployment=slice_deployment.deployment.name)
81 network = client_driver.create_network(slice_deployment.slice.name)
82 slice_deployment.network_id = network['id']
85 router = client_driver.create_router(slice_deployment.slice.name)
86 slice_deployment.router_id = router['id']
88 # create subnet for slice's private network
89 next_subnet = self.get_next_subnet(deployment=slice_deployment.deployment.name)
90 cidr = str(next_subnet.cidr)
91 ip_version = next_subnet.version
92 start = str(next_subnet[2])
93 end = str(next_subnet[-2])
94 subnet = client_driver.create_subnet(name=slice_deployment.slice.name,
95 network_id = network['id'],
97 ip_version = ip_version,
100 slice_deployment.subnet_id = subnet['id']
101 # add subnet as interface to slice's router
102 client_driver.add_router_interface(router['id'], subnet['id'])
104 client_driver.add_external_route(subnet)
107 if slice_deployment.id and slice_deployment.tenant_id:
108 driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
109 driver.update_tenant(slice_deployment.tenant_id,
110 description=slice_deployment.slice.description,
111 enabled=slice_deployment.slice.enabled)
113 slice_deployment.save()