1 from core.models import Slice, SlicePrivilege, SliceRole, Sliver, Site, Node, User
2 from plus import PlusObjectMixin
3 from operator import itemgetter, attrgetter
4 from rest_framework.exceptions import APIException
6 class SlicePlus(Slice, PlusObjectMixin):
10 def __init__(self, *args, **kwargs):
11 super(SlicePlus, self).__init__(*args, **kwargs)
12 self._update_users = None
13 self._sliceInfo = None
15 self._site_allocation = self._sliceInfo["sitesUsed"]
16 self._initial_site_allocation = self._site_allocation
17 self._network_ports = self._sliceInfo["networkPorts"]
18 self._initial_network_ports = self._network_ports
20 def getSliceInfo(self, user=None):
21 if not self._sliceInfo:
27 for sliver in self.slivers.all():
28 site = sliver.node.site_deployment.site
29 deployment = sliver.node.site_deployment.deployment
30 used_sites[site.name] = used_sites.get(site.name, 0) + 1
31 used_deployments[deployment.name] = used_deployments.get(deployment.name, 0) + 1
32 sliverCount = sliverCount + 1
34 if (sliver.instance_id and sliver.instance_name):
35 sshCommand = 'ssh -o "ProxyCommand ssh -q %s@%s" ubuntu@%s' % (sliver.instance_id, sliver.node.name, sliver.instance_name)
36 sshCommands.append(sshCommand);
38 ready_sites[site.name] = ready_sites.get(site.name, 0) + 1
41 for priv in SlicePrivilege.objects.filter(slice=self):
42 if not (priv.user.id in users.keys()):
43 users[priv.user.id] = {"name": priv.user.email, "id": priv.user.id, "roles": []}
44 users[priv.user.id]["roles"].append(priv.role.role)
46 # XXX this assumes there is only one network that can have ports bound
47 # to it for a given slice. This is intended for the tenant view, which
48 # will obey this field.
50 for networkSlice in self.networkslices.all():
51 network = networkSlice.network
52 if (network.owner.id != self.id):
55 networkPorts = network.ports
57 self._sliceInfo= {"sitesUsed": used_sites,
58 "sitesReady": ready_sites,
59 "deploymentsUsed": used_deployments,
60 "sliverCount": sliverCount,
61 "siteCount": len(used_sites.keys()),
64 "sshCommands": sshCommands,
65 "networkPorts": networkPorts}
68 auser = self._sliceInfo["users"].get(user.id, None)
70 self._sliceInfo["roles"] = auser["roles"]
72 return self._sliceInfo
76 return self.getSliceInfo()["sitesReady"]
79 def site_ready(self, value):
83 def site_allocation(self):
84 return self._site_allocation
86 @site_allocation.setter
87 def site_allocation(self, value):
88 self._site_allocation = value
92 return [user["name"] for user in self.getSliceInfo()["users"].values()]
95 def user_names(self, value):
100 return [user["id"] for user in self.getSliceInfo()["users"].values()]
103 def users(self, value):
104 self._update_users = value
105 #print "XXX set users to", value
108 def network_ports(self):
109 return self._network_ports
111 @network_ports.setter
112 def network_ports(self, value):
113 self._network_ports = value
114 #print "XXX set networkPorts to", value
117 def select_by_user(user):
119 qs = SlicePlus.objects.all()
121 slice_ids = [sp.slice.id for sp in SlicePrivilege.objects.filter(user=user)]
122 qs = SlicePlus.objects.filter(id__in=slice_ids)
125 def get_node_allocation(self, siteList):
126 siteIDList = [site.id for site in siteList]
128 for node in Node.objects.all():
129 if (node.site_deployment.site.id in siteIDList):
131 for sliver in node.slivers.all():
132 if sliver.slice.id == self.id:
133 node.sliverCount = node.sliverCount + 1
134 nodeList.append(node)
137 def save(self, *args, **kwargs):
138 updated_image = self.has_field_changed("default_image")
139 updated_flavor = self.has_field_changed("default_flavor")
141 super(SlicePlus, self).save(*args, **kwargs)
143 # try things out first
145 updated_sites = (self._site_allocation != self._initial_site_allocation) or updated_image or updated_flavor
147 self.save_site_allocation(noAct=True, reset=(updated_image or updated_flavor))
149 if self._update_users:
150 self.save_users(noAct=True)
152 if (self._network_ports != self._initial_network_ports):
153 self.save_network_ports(noAct=True)
155 # now actually save them
158 self.save_site_allocation(reset=(updated_image or updated_flavor))
160 if self._update_users:
163 if (self._network_ports != self._initial_network_ports):
164 self.save_network_ports()
166 def save_site_allocation(self, noAct = False, reset=False):
167 print "save_site_allocation, reset=",reset
169 if (not self._site_allocation):
170 # Must be a sliver that was just created, and has not site_allocation
174 all_slice_slivers = self.slivers.all()
175 for site_name in self._site_allocation.keys():
176 desired_allocation = self._site_allocation[site_name]
178 # make a list of the slivers for this site
180 for sliver in all_slice_slivers:
181 if sliver.node.site_deployment.site.name == site_name:
182 slivers.append(sliver)
184 # delete extra slivers
185 while (reset and len(slivers)>0) or (len(slivers) > desired_allocation):
186 sliver = slivers.pop()
188 print "deleting sliver", sliver
191 print "would delete sliver", sliver
194 if (len(slivers) < desired_allocation):
195 site = Site.objects.get(name = site_name)
196 nodes = self.get_node_allocation([site])
199 raise APIException(detail="no nodes in site %s" % site_name)
201 while (len(slivers) < desired_allocation):
202 # pick the least allocated node
203 nodes = sorted(nodes, key=attrgetter("sliverCount"))
206 sliver = Sliver(name=node.name,
209 image = self.default_image,
210 flavor = self.default_flavor,
211 creator = self.creator,
212 deployment = node.site_deployment.deployment)
213 slivers.append(sliver)
215 print "added sliver", sliver
218 print "would add sliver", sliver
220 node.sliverCount = node.sliverCount + 1
222 def save_users(self, noAct = False):
223 new_users = self._update_users
225 default_role = SliceRole.objects.get(role="default")
227 slice_privs = self.sliceprivileges.all()
228 slice_user_ids = [priv.user.id for priv in slice_privs]
230 for user_id in new_users:
231 if (user_id not in slice_user_ids):
232 priv = SlicePrivilege(slice=self, user=User.objects.get(id=user_id), role=default_role)
236 print "added user id", user_id
238 for priv in slice_privs:
239 if (priv.role.id != default_role.id):
240 # only mess with 'default' users; don't kill an admin
243 if (priv.user.id not in new_users):
247 print "deleted user id", user_id
249 def save_network_ports(self, noAct=False):
250 # First search for any network that already has a filled in 'ports'
251 # field. We'll assume there can only be one, so it must be the right
253 for networkSlice in self.networkslices.all():
254 network = networkSlice.network
255 if (network.owner.id != self.id):
258 network.ports = self._network_ports
263 # Now try a network that is a "NAT", since setting ports on a non-NAT
264 # network doesn't make much sense.
265 for networkSlice in self.networkslices.all():
266 network = networkSlice.network
267 if (network.owner.id != self.id):
269 if network.template.translation=="NAT":
270 network.ports = self._network_ports
275 # uh oh, we didn't find a network
277 raise APIException(detail="No network was found that ports could be set on")