plstackapi/core/api/subnets.py

   1 import commands
   2 from types import StringTypes
   3 from plstackapi.openstack.client import OpenStackClient
   4 from plstackapi.openstack.driver import OpenStackDriver
   5 from plstackapi.core.api.auth import auth_check
   6 from plstackapi.core.models import Subnet
   7 from plstackapi.core.api.slices import _get_slices
   8
   9
  10 def _get_subnets(filter):
  11     if isinstance(filter, StringTypes) and filter.isdigit():
  12         filter = int(filter)
  13     if isinstance(filter, int):
  14         subnets = Subnet.objects.filter(id=filter)
  15     elif isinstance(filter, StringTypes):
  16         # the name is the subnet's slice's name
  17         slices = _get_slices(filter)
  18         slice = None
  19         if slices: slice=slices[0]
  20         subnets = Subnet.objects.filter(slice=slice)
  21     elif isinstance(filter, dict):
  22         subnets = Subnet.objects.filter(**filter)
  23     else:
  24         subnets = []
  25     return subnets
  26
  27 def add_subnet(auth, fields):
  28     driver = OpenStackDriver(client = auth_check(auth))
  29     slices = _get_slices(fields.get('slice'))
  30     if slices: fields['slice'] = slices[0]
  31     subnet = Subnet(**fields)
  32     # create quantum subnet
  33     quantum_subnet = driver.create_subnet(name= subnet.slice.name,
  34                                           network_id=subnet.slice.network_id,
  35                                           cidr_ip = subnet.cidr,
  36                                           ip_version=subnet.ip_version,
  37                                           start = subnet.start,
  38                                           end = subnet.end)
  39     subnet.subnet_id=quantum_subnet['id']
  40     ## set dns servers
  41     #driver.update_subnet(subnet.id, {'dns_nameservers': ['8.8.8.8', '8.8.4.4']})
  42
  43     # add subnet as interface to slice's router
  44     driver.add_router_interface(subnet.slice.router_id, subnet.subnet_id)
  45     add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
  46     commands.getstatusoutput(add_route)
  47     subnet.save()
  48     return subnet
  49
  50 def update_subnet(auth, subnet, **fields):
  51     return
  52
  53 def delete_subnet(auth, filter={}):
  54     driver = OpenStackDriver(client = auth_check(auth))
  55     subnets = Subnet.objects.filter(**filter)
  56     for subnet in subnets:
  57         driver.delete_router_interface(subnet.slice.router_id, subnet.subnet_id)
  58         driver.delete_subnet(subnet.subnet_id)
  59         subnet.delete()
  60     del_route = 'route del -net %s' % self.cidr
  61     commands.getstatusoutput(del_route)
  62     return 1
  63
  64 def get_subnets(auth, filter={}):
  65     client = auth_check(auth)
  66     if 'slice' in filter:
  67         slice = _get_slice(filter.get('slice'))
  68         if slice: filter['slice'] = slice
  69     subnets = Subnet.objects.filter(**filter)
  70     return subnets
  71
  72
  73