planetstack/observer/steps/sync_networks.py

   1 import os
   2 import base64
   3 from django.db.models import F, Q
   4 from planetstack.config import Config
   5 from observer.openstacksyncstep import OpenStackSyncStep
   6 from core.models.network import *
   7
   8 class SyncNetworks(OpenStackSyncStep):
   9     provides=[Network]
  10     requested_interval = 0
  11
  12     def fetch_pending(self):
  13         return Network.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
  14
  15     def save_network(self, network):
  16         if not network.network_id:
  17             if network.template.sharedNetworkName:
  18                 network.network_id = network.template.sharedNetworkId
  19                 (network.subnet_id, network.subnet) = self.driver.get_network_subnet(network.network_id)
  20             else:
  21                 network_name = network.name
  22
  23                 # create network
  24                 os_network = self.driver.create_network(network_name, shared=True)
  25                 network.network_id = os_network['id']
  26
  27                 # create router
  28                 router = self.driver.create_router(network_name)
  29                 network.router_id = router['id']
  30
  31                 # create subnet
  32                 next_subnet = self.get_next_subnet()
  33                 cidr = str(next_subnet.cidr)
  34                 ip_version = next_subnet.version
  35                 start = str(next_subnet[2])
  36                 end = str(next_subnet[-2])
  37                 subnet = self.driver.create_subnet(name=network_name,
  38                                                    network_id = network.network_id,
  39                                                    cidr_ip = cidr,
  40                                                    ip_version = ip_version,
  41                                                    start = start,
  42                                                    end = end)
  43                 network.subnet = cidr
  44                 network.subnet_id = subnet['id']
  45                 # add subnet as interface to slice's router
  46                 self.driver.add_router_interface(router['id'], subnet['id'])
  47                 # add external route
  48                 self.driver.add_external_route(subnet)
  49
  50     def sync_record(self, site):
  51         if network.owner and network.owner.creator:
  52             try:
  53                 # update manager context
  54                 real_driver = self.driver
  55                 self.driver = self.driver.client_driver(network.owner.creator, network.owner.name)
  56                 self.save_network(network)
  57                 self.driver = real_driver
  58                 logger.info("saved network: %s" % (network))
  59             except Exception,e:
  60                 logger.log_exc("save network failed: %s" % network)
  61                 raise e
  62