2 from django.db import models
3 from core.models import PlCoreBase
4 from core.models import Site
5 from core.models.site import SitePrivilege
6 from core.models import User
7 from core.models import Role
8 from core.models import Deployment,DeploymentLinkManager,DeploymentLinkDeletionManager
9 from core.models import ServiceClass
10 from core.models.serviceclass import get_default_serviceclass
11 from core.models import Tag
12 from django.contrib.contenttypes import generic
13 from core.models import Service
14 from core.models import Deployment
15 from django.core.exceptions import ValidationError
17 # Create your models here.
19 class Slice(PlCoreBase):
20 name = models.CharField(unique=True, help_text="The Name of the Slice", max_length=80)
21 enabled = models.BooleanField(default=True, help_text="Status for this Slice")
22 omf_friendly = models.BooleanField(default=False)
23 description=models.TextField(blank=True,help_text="High level description of the slice and expected activities", max_length=1024)
24 slice_url = models.URLField(blank=True, max_length=512)
25 site = models.ForeignKey(Site, related_name='slices', help_text="The Site this Slice belongs to")
26 max_slivers = models.IntegerField(default=10)
27 imagePreference = models.CharField(default="Ubuntu 12.04 LTS", null=True, blank=True, max_length=256)
28 service = models.ForeignKey(Service, related_name='service', null=True, blank=True)
29 network = models.CharField(default="Private Only",null=True, blank=True, max_length=256)
30 mountDataSets = models.CharField(default="GenBank",null=True, blank=True, max_length=256)
31 tags = generic.GenericRelation(Tag)
33 serviceClass = models.ForeignKey(ServiceClass, related_name = "slices", null=True, default=get_default_serviceclass)
34 creator = models.ForeignKey(User, related_name='slices', blank=True, null=True)
36 def __unicode__(self): return u'%s' % (self.name)
40 return "%s_%s" % (self.site.login_base, self.name)
42 def save(self, *args, **kwds):
44 site = Site.objects.get(id=self.site.id)
45 # allow preexisting slices to keep their original name for now
46 if not self.id and not self.name.startswith(site.login_base):
47 raise ValidationError('slice name must begin with %s' % site.login_base)
49 if self.serviceClass is None:
50 # We allowed None=True for serviceClass because Django evolution
51 # will fail unless it is allowed. But, we we really don't want it to
52 # ever save None, so fix it up here.
53 self.serviceClass = ServiceClass.get_default()
54 if not self.creator and hasattr(self, 'caller'):
55 self.creator = self.caller
56 super(Slice, self).save(*args, **kwds)
58 def can_update(self, user):
63 # slice admins can update
64 slice_privs = SlicePrivilege.objects.filter(user=user, slice=self)
65 for slice_priv in slice_privs:
66 if slice_priv.role.role == 'admin':
69 site_privs = SitePrivilege.objects.filter(user=user, site=self.site)
70 for site_priv in site_privs:
71 if site_priv.role.role == 'pi':
77 def select_by_user(user):
79 qs = Slice.objects.all()
81 # users can see slices they belong to
82 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
83 # pis can see slices at their sites
84 sites = [sp.site for sp in SitePrivilege.objects.filter(user=user)\
85 if sp.role.role == 'pi']
86 slice_ids.extend([s.id for s in Slice.objects.filter(site__in=sites)])
87 qs = Slice.objects.filter(id__in=slice_ids)
90 def delete(self, *args, **kwds):
91 # delete networks associated with this slice
92 from core.models.network import Network
93 nets = Network.objects.filter(slices=self)
95 # delete slice deployments
96 slice_deployments = SliceDeployments.objects.filter(slice=self)
97 slice_deployments.delete()
98 # delete slice privilege
99 slice_privileges = SlicePrivilege.objects.filter(slice=self)
100 slice_privileges.delete()
101 # continue with normal delete
102 super(Slice, self).delete(*args, **kwds)
105 class SliceRole(PlCoreBase):
106 ROLE_CHOICES = (('admin','Admin'),('default','Default'))
108 role = models.CharField(choices=ROLE_CHOICES, unique=True, max_length=30)
110 def __unicode__(self): return u'%s' % (self.role)
112 class SlicePrivilege(PlCoreBase):
113 user = models.ForeignKey('User', related_name='sliceprivileges')
114 slice = models.ForeignKey('Slice', related_name='sliceprivileges')
115 role = models.ForeignKey('SliceRole',related_name='sliceprivileges')
117 def __unicode__(self): return u'%s %s %s' % (self.slice, self.user, self.role)
119 def can_update(self, user):
120 return self.slice.can_update(user)
123 def select_by_user(user):
125 qs = SlicePrivilege.objects.all()
127 sp_ids = [sp.id for sp in SlicePrivilege.objects.filter(user=user)]
128 qs = SlicePrivilege.objects.filter(id__in=sp_ids)
131 class SliceDeployments(PlCoreBase):
132 objects = DeploymentLinkManager()
133 deleted_objects = DeploymentLinkDeletionManager()
135 slice = models.ForeignKey(Slice, related_name='slicedeployments')
136 deployment = models.ForeignKey(Deployment, related_name='slicedeployments')
137 tenant_id = models.CharField(null=True, blank=True, max_length=200, help_text="Keystone tenant id")
138 network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
139 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
140 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
142 def __unicode__(self): return u'%s %s' % (self.slice, self.deployment)
145 def select_by_user(user):
147 qs = SliceDeployments.objects.all()
149 slices = Slice.select_by_user(user)
150 qs = SliceDeployments.objects.filter(slice__in=slices)
153 def get_cpu_stats(self):
154 filter = 'project_id=%s'%self.tenant_id
155 return monitor.get_meter('cpu',filter,None)
157 def get_bw_stats(self):
158 filter = 'project_id=%s'%self.tenant_id
159 return monitor.get_meter('network.outgoing.bytes',filter,None)
161 def get_node_stats(self):
162 return len(self.slice.slivers)