plstackapi/core/models/sliver.py

   1 import os
   2 from django.db import models
   3 from plstackapi.core.models import PlCoreBase
   4 from plstackapi.core.models import Flavor
   5 from plstackapi.core.models import Image
   6 from plstackapi.core.models import Key
   7 from plstackapi.core.models import Slice
   8 from plstackapi.core.models import Node
   9 from plstackapi.core.models import Site
  10 from plstackapi.core.models import DeploymentNetwork
  11 from plstackapi.openstack.driver import OpenStackDriver
  12
  13 # Create your models here.
  14 class Sliver(PlCoreBase):
  15     instance_id = models.CharField(max_length=200, help_text="Nova instance id")
  16     name = models.CharField(max_length=200, help_text="Sliver name")
  17     flavor = models.ForeignKey(Flavor, related_name='slivers')
  18     image = models.ForeignKey(Image, related_name='slivers')
  19     key = models.ForeignKey(Key, related_name='slivers')
  20     slice = models.ForeignKey(Slice, related_name='slivers')
  21     node = models.ForeignKey(Node, related_name='slivers')
  22     #site = models.ForeignKey(Site, related_name='slivers')
  23     deploymentNetwork = models.ForeignKey(DeploymentNetwork, related_name='sliver_deploymentNetwork')
  24
  25     def __unicode__(self):  return u'%s::%s' % (self.slice, self.deploymentNetwork)
  26
  27     def save(self, *args, **kwds):
  28         driver = OpenStackDriver()
  29         if not self.instance_id:
  30             instance = driver.spawn_instance(name=self.name,
  31                                    key_name = self.key.name,
  32                                    flavor_id = self.flavor.flavor_id,
  33                                    image_id = self.image.image_id,
  34                                    hostname = self.node.name )
  35             self.instance_id = instance.id
  36
  37         super(Sliver, self).save(*args, **kwds)
  38
  39     def delete(self, *args, **kwds):
  40         driver = OpenStackDriver()
  41         if self.instance_id:
  42             driver.destroy_instance(self.instance_id)
  43
  44         super(Sliver, self).delete(*args, **kwds)