2 from django.db import models
3 from django.core import exceptions
4 from plstackapi.core.models import PlCoreBase
5 from plstackapi.core.models import Flavor
6 from plstackapi.core.models import Image
7 from plstackapi.core.models import Key
8 from plstackapi.core.models import Slice
9 from plstackapi.core.models import Node
10 from plstackapi.core.models import Site
11 from plstackapi.core.models import DeploymentNetwork
12 from plstackapi.openstack.driver import OpenStackDriver
14 # Create your models here.
15 class Sliver(PlCoreBase):
16 instance_id = models.CharField(max_length=200, help_text="Nova instance id")
17 name = models.CharField(max_length=200, help_text="Sliver name")
18 flavor = models.ForeignKey(Flavor, related_name='slivers')
19 image = models.ForeignKey(Image, related_name='slivers')
20 key = models.ForeignKey(Key, related_name='slivers')
21 slice = models.ForeignKey(Slice, related_name='slivers')
22 node = models.ForeignKey(Node, related_name='slivers')
23 deploymentNetwork = models.ForeignKey(DeploymentNetwork, related_name='sliver_deploymentNetwork')
25 def __unicode__(self): return u'%s::%s' % (self.slice, self.deploymentNetwork)
27 def save(self, *args, **kwds):
28 if not self.slice.subnet.exists():
29 raise exceptions.ValidationError, "Slice %s has no subnet" % self.slice.name
31 if not self.instance_id:
32 driver = OpenStackDriver()
33 instance = driver.spawn_instance(name=self.name,
34 key_name = self.key.name,
35 flavor_id = self.flavor.flavor_id,
36 image_id = self.image.image_id,
37 hostname = self.node.name )
38 self.instance_id = instance.id
40 super(Sliver, self).save(*args, **kwds)
42 def delete(self, *args, **kwds):
43 driver = OpenStackDriver()
45 driver.destroy_instance(self.instance_id)
47 super(Sliver, self).delete(*args, **kwds)