plstackapi/core/models/slice.py

   1 import os
   2 from django.db import models
   3 from plstackapi.core.models import PlCoreBase
   4 from plstackapi.core.models import Site
   5 from plstackapi.core.models import PLUser
   6 from plstackapi.core.models import Role
   7 from plstackapi.core.models import DeploymentNetwork
   8
   9 # Create your models here.
  10
  11 class Slice(PlCoreBase):
  12     tenant_id = models.CharField(max_length=200, help_text="Keystone tenant id")
  13     name = models.CharField(unique=True, help_text="The Name of the Slice", max_length=80)
  14     enabled = models.BooleanField(default=True, help_text="Status for this Slice")
  15     SLICE_CHOICES = (('plc', 'PLC'), ('delegated', 'Delegated'), ('controller','Controller'), ('none','None'))
  16     instantiation = models.CharField(help_text="The instantiation type of the slice", max_length=80, choices=SLICE_CHOICES)
  17     omf_friendly = models.BooleanField()
  18     description=models.TextField(blank=True,help_text="High level description of the slice and expected activities", max_length=1024)
  19     slice_url = models.URLField(blank=True, max_length=512)
  20     site = models.ForeignKey(Site, related_name='slices', help_text="The Site this Node belongs too")
  21     network_id = models.CharField(max_length=256, help_text="Quantum network")
  22     router_id = models.CharField(max_length=256, help_text="Quantum router id")
  23
  24     SVC_CLASS_CHOICES = (('besteffort', 'Best Effort'), ('silver', 'Silver'), ('gold','Gold'))
  25     serviceClass = models.CharField(verbose_name="Service Class",default="besteffort",help_text="The Service Class of this slice", max_length=30, choices=SVC_CLASS_CHOICES)
  26
  27
  28     def __unicode__(self):  return u'%s' % (self.name)
  29
  30     def save(self, *args, **kwds):
  31         if not self.tenant_id:
  32             nova_fields = {'tenant_name': self.name,
  33                    'description': self.description,
  34                    'enabled': self.enabled}
  35             tenant = self.driver.create_tenant(**nova_fields)
  36             self.tenant_id = tenant.id
  37
  38             # give caller an admin role at the tenant they've created
  39             self.driver.add_user_role(self.caller.user_id, tenant.id, 'admin')
  40
  41             # refresh credentials using this tenant
  42             self.driver.shell.connect(username=self.driver.shell.keystone.username,
  43                                       password=self.driver.shell.keystone.password,
  44                                       tenant=tenant.name)
  45
  46             # create network
  47             network = self.driver.create_network(self.name)
  48             self.network_id = network['id']
  49
  50             # create router
  51             router = self.driver.create_router(self.name)
  52             self.router_id = router['id']
  53
  54         if self.id:
  55             self.driver.update_tenant(self.tenant_id,
  56                                       description=self.description,
  57                                       enabled=self.enabled)
  58
  59         super(Slice, self).save(*args, **kwds)
  60
  61     def delete(self, *args, **kwds):
  62         if self.tenant_id:
  63             self.driver.delete_router(self.router_id)
  64             self.driver.delete_network(self.network_id)
  65             self.driver.delete_tenant(self.tenant_id)
  66
  67         super(Slice, self).delete(*args, **kwds)
  68
  69 class SliceMembership(PlCoreBase):
  70     user = models.ForeignKey('PLUser', related_name='slice_memberships')
  71     slice = models.ForeignKey('Slice', related_name='slice_memberships')
  72     role = models.ForeignKey('Role')
  73
  74     def __unicode__(self):  return u'%s %s %s' % (self.slice, self.user, self.role)
  75
  76     def save(self, *args, **kwds):
  77         self.driver.add_user_role(self.user.user_id, self.slice.tenant_id, self.role.role_type)
  78         super(SliceMembership, self).save(*args, **kwds)
  79
  80     def delete(self, *args, **kwds):
  81         self.driver.delete_user_role(self.user.user_id, self.slice.tenant_id, self.role.role_type)
  82         super(SliceMembership, self).delete(*args, **kwds)