1 from core.models import Slice, SlicePrivilege, SliceRole, Sliver, Site, Node, User
2 from plus import PlusObjectMixin
3 from operator import itemgetter, attrgetter
5 class SlicePlus(Slice, PlusObjectMixin):
9 def __init__(self, *args, **kwargs):
10 super(SlicePlus, self).__init__(*args, **kwargs)
11 self._update_users = None
12 self._sliceInfo = None
14 self._site_allocation = self._sliceInfo["sitesUsed"]
15 self._initial_site_allocation = self._site_allocation
17 def getSliceInfo(self, user=None):
18 if not self._sliceInfo:
23 for sliver in self.slivers.all():
24 site = sliver.node.site_deployment.site
25 deployment = sliver.node.site_deployment.deployment
26 used_sites[site.name] = used_sites.get(site.name, 0) + 1
27 used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
28 sliverCount = sliverCount + 1
30 if (sliver.instance_id and sliver.instance_name):
31 sshCommand = 'ssh -o "ProxyCommand ssh -q %s@%s" ubuntu@%s' % (sliver.instance_id, sliver.node.name, sliver.instance_name)
32 sshCommands.append(sshCommand);
35 for priv in SlicePrivilege.objects.filter(slice=self):
36 if not (priv.user.id in users.keys()):
37 users[priv.user.id] = {"name": priv.user.email, "id": priv.user.id, "roles": []}
38 users[priv.user.id]["roles"].append(priv.role.role)
40 self._sliceInfo= {"sitesUsed": used_sites,
41 "deploymentsUsed": used_deployments,
42 "sliverCount": sliverCount,
43 "siteCount": len(used_sites.keys()),
46 "sshCommands": sshCommands}
49 auser = self._sliceInfo["users"].get(user.id, None)
51 self._sliceInfo["roles"] = auser["roles"]
53 return self._sliceInfo
56 def site_allocation(self):
57 return self._site_allocation
59 @site_allocation.setter
60 def site_allocation(self, value):
61 self._site_allocation = value
65 return [user["name"] for user in self.getSliceInfo()["users"].values()]
68 def user_names(self, value):
73 return [user["id"] for user in self.getSliceInfo()["users"].values()]
76 def users(self, value):
77 self._update_users = value
78 #print "XXX set users to", value
81 def network_ports(self):
82 # XXX this assumes there is only one network that can have ports bound
83 # to it for a given slice. This is intended for the tenant view, which
84 # will obey this field.
86 for networkSlice in self.networkslices.all():
87 network = networkSlice.network
89 networkPorts = network.ports
94 def network_ports(self, value):
95 print "XXX set networkPorts to", value
98 def select_by_user(user):
100 qs = SlicePlus.objects.all()
102 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
103 qs = SlicePlus.objects.filter(id__in=slice_ids)
106 def get_node_allocation(self, siteList):
107 siteIDList = [site.id for site in siteList]
109 for node in Node.objects.all():
110 if (node.site_deployment.site.id in siteIDList):
112 for sliver in node.slivers.all():
113 if sliver.slice.id == self.id:
114 node.sliverCount = node.sliverCount + 1
115 nodeList.append(node)
118 def save(self, *args, **kwargs):
119 updated_image = self.has_field_changed("default_image")
120 updated_flavor = self.has_field_changed("default_flavor")
122 super(SlicePlus, self).save(*args, **kwargs)
124 updated_sites = (self._site_allocation != self._initial_site_allocation) or updated_image or updated_flavor
126 self.save_site_allocation(noAct=True, reset=(updated_image or updated_flavor))
128 if self._update_users:
129 self.save_users(noAct=True)
132 self.save_site_allocation(reset=(updated_image or updated_flavor))
134 if self._update_users:
137 def save_site_allocation(self, noAct = False, reset=False):
138 print "save_site_allocation, reset=",reset
140 if (not self._site_allocation):
141 # Must be a sliver that was just created, and has not site_allocation
145 all_slice_slivers = self.slivers.all()
146 for site_name in self._site_allocation.keys():
147 desired_allocation = self._site_allocation[site_name]
149 # make a list of the slivers for this site
151 for sliver in all_slice_slivers:
152 if sliver.node.site_deployment.site.name == site_name:
153 slivers.append(sliver)
155 # delete extra slivers
156 while (reset and len(slivers)>0) or (len(slivers) > desired_allocation):
157 sliver = slivers.pop()
159 print "deleting sliver", sliver
162 print "would delete sliver", sliver
165 if (len(slivers) < desired_allocation):
166 site = Site.objects.get(name = site_name)
167 nodes = self.get_node_allocation([site])
170 raise ValueError("no nodes in site %s" % site_name)
172 while (len(slivers) < desired_allocation):
173 # pick the least allocated node
174 nodes = sorted(nodes, key=attrgetter("sliverCount"))
177 sliver = Sliver(name=node.name,
180 image = self.default_image,
181 flavor = self.default_flavor,
182 creator = self.creator,
183 deployment = node.site_deployment.deployment)
184 slivers.append(sliver)
186 print "added sliver", sliver
189 print "would add sliver", sliver
191 node.sliverCount = node.sliverCount + 1
193 def save_users(self, noAct = False):
194 new_users = self._update_users
196 default_role = SliceRole.objects.get(role="default")
198 slice_privs = self.sliceprivileges.all()
199 slice_user_ids = [priv.user.id for priv in slice_privs]
201 for user_id in new_users:
202 if (user_id not in slice_user_ids):
203 priv = SlicePrivilege(slice=self, user=User.objects.get(id=user_id), role=default_role)
207 print "added user id", user_id
209 for priv in slice_privs:
210 if (priv.role.id != default_role.id):
211 # only mess with 'default' users; don't kill an admin
214 if (priv.user.id not in new_users):
218 print "deleted user id", user_id