planetstack/openstack_observer/steps/sync_slice_deployments.py

   1 import os
   2 import base64
   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 Deployment, SiteDeployments
   9 from core.models.slice import Slice, SliceDeployments
  10 from core.models.userdeployments import UserDeployments
  11 from util.logger import Logger, logging
  12
  13 logger = Logger(level=logging.INFO)
  14
  15 class SyncSliceDeployments(OpenStackSyncStep):
  16     provides=[SliceDeployments]
  17     requested_interval=0
  18
  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)
  26
  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)
  31
  32         all_deployments = Deployment.objects.all()
  33         for slice in Slice.objects.all():
  34             # slices are added to all deployments for now
  35             expected_deployments = all_deployments
  36             #expected_deployments = site_deploy_lookup[slice.site]
  37             for expected_deployment in expected_deployments:
  38                 if slice not in slice_deploy_lookup or \
  39                    expected_deployment not in slice_deploy_lookup[slice]:
  40                     sd = SliceDeployments(slice=slice, deployment=expected_deployment)
  41                     sd.save()
  42
  43         # now we can return all slice deployments that need to be enacted
  44         return SliceDeployments.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
  45
  46     def get_next_subnet(self, deployment=None):
  47         # limit ourself to 10.0.x.x for now
  48         valid_subnet = lambda net: net.startswith('10.0')
  49         driver = self.driver.admin_driver(deployment=deployment)
  50         subnets = driver.shell.quantum.list_subnets()['subnets']
  51         ints = [int(IPNetwork(subnet['cidr']).ip) for subnet in subnets \
  52                 if valid_subnet(subnet['cidr'])]
  53         ints.sort()
  54         if ints:
  55             last_ip = IPAddress(ints[-1])
  56         else:
  57             last_ip = IPAddress('10.0.0.1')
  58         last_ip = IPAddress(ints[-1])
  59         last_network = IPNetwork(str(last_ip) + "/24")
  60         next_network = IPNetwork(str(IPAddress(last_network) + last_network.size) + "/24")
  61         return next_network
  62
  63
  64     def sync_record(self, slice_deployment):
  65         logger.info("sync'ing slice deployment %s" % slice_deployment)
  66         if not slice_deployment.tenant_id:
  67             nova_fields = {'tenant_name': slice_deployment.slice.name,
  68                    'description': slice_deployment.slice.description,
  69                    'enabled': slice_deployment.slice.enabled}
  70             driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
  71             tenant = driver.create_tenant(**nova_fields)
  72             slice_deployment.tenant_id = tenant.id
  73
  74             # XXX give caller an admin role at the tenant they've created
  75             deployment_users = UserDeployments.objects.filter(user=slice_deployment.slice.creator,
  76                                                              deployment=slice_deployment.deployment)
  77             if not deployment_users:
  78                 logger.info("slice createor %s has not accout at deployment %s" % (slice_deployment.slice.creator, slice_deployment.deployment.name))
  79             else:
  80                 deployment_user = deployment_users[0]
  81                 # lookup user id at this deployment
  82                 kuser= driver.shell.keystone.users.find(email=slice_deployment.slice.creator.email)
  83
  84                 # add required roles at the slice's tenant
  85                 driver.add_user_role(kuser.id, tenant.id, 'admin')
  86
  87                 # refresh credentials using this tenant
  88                 client_driver = self.driver.client_driver(caller=deployment_user.user,
  89                                                           tenant=tenant.name,
  90                                                           deployment=slice_deployment.deployment.name)
  91
  92
  93         if slice_deployment.id and slice_deployment.tenant_id:
  94             # update existing tenant
  95             driver = self.driver.admin_driver(deployment=slice_deployment.deployment.name)
  96             driver.update_tenant(slice_deployment.tenant_id,
  97                                  description=slice_deployment.slice.description,
  98                                  enabled=slice_deployment.slice.enabled)
  99
 100         if slice_deployment.tenant_id:
 101             # update slice/tenant quota
 102             driver = self.driver.client_driver(deployment=slice_deployment.deployment.name, tenant=slice_deployment.slice.name)
 103             driver.shell.nova.quotas.update(tenant_id=slice_deployment.tenant_id, instances=int(slice_deployment.slice.max_slivers))
 104
 105         slice_deployment.save()