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 from util.logger import Logger, logging
   8
   9 logger = Logger(level=logging.INFO)
  10
  11 class SyncNetworks(OpenStackSyncStep):
  12     provides=[Network]
  13     requested_interval = 0
  14
  15     def fetch_pending(self):
  16         return Network.objects.filter(Q(enacted__lt=F('updated')) | Q(enacted=None))
  17
  18     def save_network(self, network):
  19         if not network.network_id:
  20             if network.template.sharedNetworkName:
  21                 network.network_id = network.template.sharedNetworkId
  22                 (network.subnet_id, network.subnet) = self.driver.get_network_subnet(network.network_id)
  23             else:
  24                 network_name = network.name
  25
  26                 # create network
  27                 os_network = self.driver.create_network(network_name, shared=True)
  28                 network.network_id = os_network['id']
  29
  30                 # create router
  31                 router = self.driver.create_router(network_name)
  32                 network.router_id = router['id']
  33
  34                 # create subnet
  35                 next_subnet = self.get_next_subnet()
  36                 cidr = str(next_subnet.cidr)
  37                 ip_version = next_subnet.version
  38                 start = str(next_subnet[2])
  39                 end = str(next_subnet[-2])
  40                 subnet = self.driver.create_subnet(name=network_name,
  41                                                    network_id = network.network_id,
  42                                                    cidr_ip = cidr,
  43                                                    ip_version = ip_version,
  44                                                    start = start,
  45                                                    end = end)
  46                 network.subnet = cidr
  47                 network.subnet_id = subnet['id']
  48                 # add subnet as interface to slice's router
  49                 self.driver.add_router_interface(router['id'], subnet['id'])
  50                 # add external route
  51                 self.driver.add_external_route(subnet)
  52
  53     def sync_record(self, network):
  54         if network.owner and network.owner.creator:
  55             try:
  56                 # update manager context
  57                 real_driver = self.driver
  58                 self.driver = self.driver.client_driver(network.owner.creator, network.owner.name)
  59                 self.save_network(network)
  60                 self.driver = real_driver
  61                 logger.info("saved network: %s" % (network))
  62             except Exception,e:
  63                 logger.log_exc("save network failed: %s" % network)
  64                 raise e
  65