diff options
Diffstat (limited to 'src/account/models.py')
| -rw-r--r-- | src/account/models.py | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/src/account/models.py b/src/account/models.py index 32229b1..f1deca7 100644 --- a/src/account/models.py +++ b/src/account/models.py @@ -16,9 +16,6 @@ import random from collections import Counter -from dashboard.exceptions import ResourceAvailabilityException - - class LabStatus(object): """ A Poor man's enum for the status of a lab. @@ -63,163 +60,6 @@ class UserProfile(models.Model): def __str__(self): return self.user.username - -class VlanManager(models.Model): - """ - Keeps track of the vlans for a lab. - - Vlans are represented as indexes into a 4096 element list. - This list is serialized to JSON for storing in the DB. - """ - - # list of length 4096 containing either 0 (not available) or 1 (available) - vlans = models.TextField() - # list of length 4096 containing either 0 (not reserved) or 1 (reserved) - reserved_vlans = models.TextField() - - block_size = models.IntegerField() - - # True if the lab allows two different users to have the same private vlans - # if they use QinQ or a vxlan overlay, for example - allow_overlapping = models.BooleanField() - - 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) - reserved = json.loads(self.reserved_vlans) - - for i in range(0, len(vlans) - 1): - if len(allocated) >= count: - break - - if vlans[i] == 0 and self.allow_overlapping is False: - continue - - if reserved[i] == 1: - continue - - # vlan is available and not reserved, so safe to add - if within is not None: - if i in within: - allocated.append(i) - else: - allocated.append(i) - continue - - if len(allocated) != count: - raise ResourceAvailabilityException("There were not enough available private vlans for the allocation. Please contact the administrators.") - - return allocated - - def get_public_vlan(self, within=None): - """Return reference to an available public network without reserving it.""" - 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.""" - net = PublicNetwork.objects.get(lab=self.lab_set.first(), vlan=vlan, in_use=False) - net.in_use = True - net.save() - - def release_public_vlan(self, vlan): - """Un-reserves a public network with the given vlan.""" - net = PublicNetwork.objects.get(lab=self.lab_set.first(), vlan=vlan, in_use=True) - net.in_use = False - net.save() - - def public_vlan_is_available(self, vlan): - """ - Whether the public vlan is available. - - returns true if the network with the given vlan is free to use, - False otherwise - """ - net = PublicNetwork.objects.get(lab=self.lab_set.first(), vlan=vlan) - return not net.in_use - - def is_available(self, vlans): - """ - If the vlans are available. - - 'vlans' is either a single vlan id integer or a list of integers - will return true (available) or false - """ - if self.allow_overlapping: - return True - - reserved = json.loads(self.reserved_vlans) - vlan_master_list = json.loads(self.vlans) - try: - iter(vlans) - except Exception: - vlans = [vlans] - - for vlan in vlans: - if not vlan_master_list[vlan] or reserved[vlan]: - return False - return True - - def release_vlans(self, vlans): - """ - Make the vlans available for another booking. - - 'vlans' is either a single vlan id integer or a list of integers - will make the vlans available - doesnt return a value - """ - my_vlans = json.loads(self.vlans) - - try: - iter(vlans) - except Exception: - vlans = [vlans] - - for vlan in vlans: - my_vlans[vlan] = 1 - self.vlans = json.dumps(my_vlans) - self.save() - - def reserve_vlans(self, vlans): - """ - Reserves all given vlans or throws a ValueError. - - vlans can be an integer or a list of integers. - """ - my_vlans = json.loads(self.vlans) - - reserved = json.loads(self.reserved_vlans) - - try: - iter(vlans) - except Exception: - vlans = [vlans] - - vlans = set(vlans) - - for vlan in vlans: - if my_vlans[vlan] == 0 or reserved[vlan] == 1: - raise ValueError("vlan " + str(vlan) + " is not available") - - my_vlans[vlan] = 0 - self.vlans = json.dumps(my_vlans) - self.save() - - class Lab(models.Model): """ Model representing a Hosting Lab. @@ -233,7 +73,6 @@ class Lab(models.Model): contact_email = models.EmailField(max_length=200, null=True, blank=True) contact_phone = models.CharField(max_length=20, null=True, blank=True) status = models.IntegerField(default=LabStatus.UP) - vlan_manager = models.ForeignKey(VlanManager, on_delete=models.CASCADE, null=True) location = models.TextField(default="unknown") # This token must apear in API requests from this lab api_token = models.CharField(max_length=50) @@ -250,26 +89,9 @@ class Lab(models.Model): key += random.choice(alphabet) return key - def get_available_resources(self): - # Cannot import model normally due to ciruclar import - Server = apps.get_model('resource_inventory', 'Server') # TODO: Find way to import ResourceQuery - resources = [str(resource.profile) for resource in Server.objects.filter(lab=self, working=True, booked=False)] - return dict(Counter(resources)) - def __str__(self): return self.name - -class PublicNetwork(models.Model): - """L2/L3 network that can reach the internet.""" - - vlan = models.IntegerField() - lab = models.ForeignKey(Lab, on_delete=models.CASCADE) - in_use = models.BooleanField(default=False) - cidr = models.CharField(max_length=50, default="0.0.0.0/0") - gateway = models.CharField(max_length=50, default="0.0.0.0") - - class Downtime(models.Model): """ A Downtime event. |