planetstack/core/models/sliver.py

   1 import os
   2 from django.db import models
   3 from django.core import exceptions
   4 from core.models import PlCoreBase
   5 from core.models import Image
   6 from core.models import Key
   7 from core.models import Slice
   8 from core.models import Node
   9 from core.models import Site
  10 from core.models import DeploymentNetwork
  11
  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)
  24
  25
  26     def __unicode__(self):  return u'%s' % (self.instance_name)
  27
  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
  31
  32         self.os_manager.save_sliver(self)
  33         super(Sliver, self).save(*args, **kwds)
  34
  35     def delete(self, *args, **kwds):
  36         self.os_manager.delete_sliver(self)
  37         super(Sliver, self).delete(*args, **kwds)