diff options
Diffstat (limited to 'src/account/models.py')
| -rw-r--r-- | src/account/models.py | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/src/account/models.py b/src/account/models.py index 210025e..32229b1 100644 --- a/src/account/models.py +++ b/src/account/models.py @@ -83,12 +83,14 @@ class VlanManager(models.Model): # if they use QinQ or a vxlan overlay, for example allow_overlapping = models.BooleanField() - def get_vlans(self, count=1): + def get_vlans(self, count=1, within=None): """ Return the IDs of available vlans as a list[int], but does not reserve them. Will throw index exception if not enough vlans are available. Always returns a list of ints + + If `within` is not none, will filter against that as a set, requiring that any vlans returned are within that set """ allocated = [] vlans = json.loads(self.vlans) @@ -105,17 +107,28 @@ class VlanManager(models.Model): continue # vlan is available and not reserved, so safe to add - allocated.append(i) + if within is not None: + if i in within: + allocated.append(i) + else: + allocated.append(i) continue if len(allocated) != count: - raise ResourceAvailabilityException("can't allocate the vlans requested") + raise ResourceAvailabilityException("There were not enough available private vlans for the allocation. Please contact the administrators.") return allocated - def get_public_vlan(self): + def get_public_vlan(self, within=None): """Return reference to an available public network without reserving it.""" - return PublicNetwork.objects.filter(lab=self.lab_set.first(), in_use=False).first() + r = PublicNetwork.objects.filter(lab=self.lab_set.first(), in_use=False) + if within is not None: + r = r.filter(vlan__in=within) + + if r.count() < 1: + raise ResourceAvailabilityException("There were not enough available public vlans for the allocation. Please contact the administrators.") + + return r.first() def reserve_public_vlan(self, vlan): """Reserves the Public Network that has the given vlan.""" |