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 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
12 # Create your models here.
13 class Sliver(PlCoreBase):
14 instance_id = models.CharField(max_length=200, help_text="Nova instance id")
15 name = models.CharField(max_length=200, help_text="Sliver name")
16 instance_name = models.CharField(blank=True, null=True, max_length=200, help_text="OpenStack generated name")
17 ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
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 deploymentNetwork = models.ForeignKey(DeploymentNetwork, verbose_name='deployment', related_name='sliver_deploymentNetwork')
23 numberCores = models.IntegerField(verbose_name="Number of Cores", help_text="Number of cores for sliver", default=2)
26 def __unicode__(self): return u'%s::%s' % (self.slice, self.deploymentNetwork)
28 def save(self, *args, **kwds):
29 if not self.slice.subnet.exists():
30 raise exceptions.ValidationError, "Slice %s has no subnet" % self.slice.name
32 if not self.instance_id:
33 instance = self.driver.spawn_instance(name=self.name,
34 key_name = self.key.name,
35 image_id = self.image.image_id,
36 hostname = self.node.name )
37 self.instance_id = instance.id
38 self.instance_name = getattr(instance, 'OS-EXT-SRV-ATTR:instance_name')
40 super(Sliver, self).save(*args, **kwds)
42 def delete(self, *args, **kwds):
44 self.driver.destroy_instance(self.instance_id)
46 super(Sliver, self).delete(*args, **kwds)