plstackapi/core/api/subnets.py

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