plstackapi/core/models/subnet.py

   1 import os
   2 import commands
   3 from django.db import models
   4 from plstackapi.core.models import PlCoreBase
   5 from plstackapi.core.models import Slice
   6
   7 # Create your models here.
   8
   9 class Subnet(PlCoreBase):
  10     subnet_id = models.CharField(max_length=256, unique=True)
  11     cidr = models.CharField(max_length=20)
  12     ip_version = models.IntegerField()
  13     start = models.IPAddressField()
  14     end = models.IPAddressField()
  15     slice = models.ForeignKey(Slice, related_name='subnet')
  16
  17     def __unicode__(self):  return u'%s' % (self.slice.name)
  18
  19     def save(self, *args, **kwds):
  20         if not self.subnet_id:
  21             quantum_subnet = self.driver.create_subnet(name= self.slice.name,
  22                                           network_id=self.slice.network_id,
  23                                           cidr_ip = self.cidr,
  24                                           ip_version=self.ip_version,
  25                                           start = self.start,
  26                                           end = self.end)
  27             self.subnet_id = quantum_subnet['id']
  28             # add subnet as interface to slice's router
  29             self.driver.add_router_interface(self.slice.router_id, self.subnet_id)
  30             #add_route = 'route add -net %s dev br-ex gw 10.100.0.5' % self.cidr
  31             #commands.getstatusoutput(add_route)
  32
  33         super(Subnet, self).save(*args, **kwds)
  34
  35     def delete(self, *args, **kwds):
  36         if self.subnet_id:
  37             self.driver.delete_router_interface(self.slice.router_id, self.subnet_id)
  38             self.driver.delete_subnet(self.subnet_id)
  39             #del_route = 'route del -net %s' % self.cidr
  40             #commands.getstatusoutput(del_route)
  41         super(Subnet, self).delete(*args, **kwds)