observer now supports remote openstack deployments
diff --git a/planetstack/observer/steps/sync_slice_deployments.py b/planetstack/observer/steps/sync_slice_deployments.py
new file mode 100644
index 0000000..0f92796
--- /dev/null
+++ b/planetstack/observer/steps/sync_slice_deployments.py
@@ -0,0 +1,105 @@
+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.site import SiteDeployments
+from core.models.slice import Slice, SliceDeployments
+from util.logger import Logger, logging
+
+logger = Logger(level=logging.INFO)
+
+class SyncSliceDeployments(OpenStackSyncStep):
+ provides=[Slice, SliceDeployments]
+ requested_interval=0
+
+ def fetch_pending(self):
+ # slice deployments are not visible to users. We must ensure
+ # slices are deployed at all deploymets available to their site.
+ site_deployments = SiteDeployment.objects.all()
+ site_deploy_lookup = defaultdict(list)
+ for site_deployment in site_deployments:
+ site_deploy_lookup[site_deployment.site].append(site_deployment.deployment)
+
+ slice_deployments = SliceDeployment.objects.all()
+ slice_deploy_lookup = defaultdict(list)
+ for slice_deployment in slice_deployments:
+ slice_deploy_lookup[slice_deployment.slice].append(slice_deployment.deployment)
+
+ for slice in Slice.objects.all():
+ expected_deployments = site_deploy_lookup[slice.site]
+ for expected_deployment in expected_deployments:
+ if slice not in slice_deploy_lookup or \
+ expected_deployment not in slice_deploy_lookup[slice]:
+ sd = SliceDeployments(slice=slice, deployment=expected_deployment)
+ sd.save()
+
+ # now we can return all slice deployments that need to be enacted
+ return SliceDeployments.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()
+ last_ip = IPAddress(ints[-1])
+ last_network = IPNetwork(str(last_ip) + "/24")
+ next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
+ return next_network
+
+ def sync_record(self, slice_deployment):
+ logger.info("sync'ing slice deployment %s" % slice_deployment)
+ if not slice_deployment.tenant_id:
+ nova_fields = {'tenant_name': slice_deployment.slice.name,
+ 'description': slice_deployment.slice.description,
+ 'enabled': slice_deployment.slice.enabled}
+ driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
+ tenant = driver.create_tenant(**nova_fields)
+ slice_deployment.tenant_id = tenant.id
+
+ # XXX give caller an admin role at the tenant they've created
+ driver.add_user_role(slice_deployment.slice.creator.kuser_id, tenant.id, 'admin')
+
+ # refresh credentials using this tenant
+ client_driver = self.driver.client_driver(tenant=tenant.name,
+ deployment=slice_deployment.deployment.name)
+
+ # create network
+ network = client_driver.create_network(slice.name)
+ slice_deployment.network_id = network['id']
+
+ # create router
+ router = client_driver.create_router(slice.name)
+ slice_deployment.router_id = router['id']
+
+ # create subnet for slice's private network
+ next_subnet = self.get_next_subnet(deployment=slice_deployment.deployment.name)
+ cidr = str(next_subnet.cidr)
+ ip_version = next_subnet.version
+ start = str(next_subnet[2])
+ end = str(next_subnet[-2])
+ subnet = client_driver.create_subnet(name=slice.name,
+ network_id = network['id'],
+ cidr_ip = cidr,
+ ip_version = ip_version,
+ start = start,
+ end = end)
+ slice_deployment.subnet_id = subnet['id']
+ # add subnet as interface to slice's router
+ client_driver.add_router_interface(router['id'], subnet['id'])
+ # add external route
+ client_driver.add_external_route(subnet)
+
+
+ if slice_deployment.id and slice_deployment.tenant_id:
+ driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
+ driver.update_tenant(slice_deployment.tenant_id,
+ description=slice_deployment.slice.description,
+ enabled=slice_deployment.slice.enabled)
+
+ slice_deployment.save()