network: Add Vxlan model

circle/network/migrations/0001_initial.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.6 on 2017-10-25 18:56
+from __future__ import unicode_literals
+
+from django.conf import settings
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import firewall.fields
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('firewall', '0006_auto_20170707_1909'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Vxlan',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('vni', models.IntegerField(help_text='VXLAN Network Identifier.', unique=True, validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(16777215)], verbose_name='VNI')),
+                ('name', models.CharField(help_text='The short name of the virtual network.', max_length=20, unique=True, validators=[firewall.fields.val_alfanum], verbose_name='Name')),
+                ('description', models.TextField(blank=True, help_text='Description of the goals and elements of the virtual network.', verbose_name='description')),
+                ('comment', models.TextField(blank=True, help_text='Notes, comments about the network', verbose_name='comment')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='created at')),
+                ('modified_at', models.DateTimeField(auto_now=True, verbose_name='modified at')),
+                ('owner', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='owner')),
+                ('vlan', models.ForeignKey(help_text='The server vlan.', on_delete=django.db.models.deletion.CASCADE, to='firewall.Vlan', verbose_name='vlan')),
+            ],
+            options={
+                'ordering': ('vni',),
+                'verbose_name': 'vxlan',
+                'verbose_name_plural': 'vxlans',
+            },
+        ),
+    ]

circle/network/models.py

@@ -14,5 +14,72 @@
 #
 # You should have received a copy of the GNU General Public License along
 # with CIRCLE.  If not, see <http://www.gnu.org/licenses/>.
+from django.db import models
+from django.contrib.auth.models import User
+from django.core.validators import MinValueValidator, MaxValueValidator
+from django.core.urlresolvers import reverse
+from django.utils.translation import ugettext_lazy as _
 
-# Create your models here.
+from acl.models import AclBase
+from firewall.models import Vlan
+from firewall.fields import val_alfanum
+
+
+class Vxlan(AclBase, models.Model):
+
+    """
+    A virtual L2 network,
+
+    These networks are isolated by the vxlan (virtual extensible lan)
+    technology, which is commonly used by managed network switches
+    to partition the network, with a more scalable way opposite vlan
+    technology. Usually, it used over vlan networks.
+
+    Each vxlan network has a unique identifier (VNI), a name, and
+    a server vlan network.
+    """
+
+    ACL_LEVELS = (
+        ('user', _('user')),
+        ('operator', _('operator')),
+    )
+    vni = models.IntegerField(unique=True,
+                              verbose_name=_('VNI'),
+                              help_text=_('VXLAN Network Identifier.'),
+                              validators=[MinValueValidator(0),
+                                          MaxValueValidator(2 ** 24 - 1)])
+    vlan = models.ForeignKey(Vlan,
+                             verbose_name=_('vlan'),
+                             help_text=_('The server vlan.'))
+    name = models.CharField(max_length=20,
+                            unique=True,
+                            verbose_name=_('Name'),
+                            help_text=_('The short name of the '
+                                        'virtual network.'),
+                            validators=[val_alfanum])
+    description = models.TextField(blank=True, verbose_name=_('description'),
+                                   help_text=_(
+                                       'Description of the goals and elements '
+                                       'of the virtual network.'))
+    comment = models.TextField(blank=True,
+                               verbose_name=_('comment'),
+                               help_text=_(
+                                   'Notes, comments about the network'))
+    created_at = models.DateTimeField(auto_now_add=True,
+                                      verbose_name=_('created at'))
+    owner = models.ForeignKey(User, blank=True, null=True,
+                              verbose_name=_('owner'))
+    modified_at = models.DateTimeField(auto_now=True,
+                                       verbose_name=_('modified at'))
+
+    class Meta:
+        app_label = 'network'
+        verbose_name = _("vxlan")
+        verbose_name_plural = _("vxlans")
+        ordering = ('vni', )
+
+    def __unicode__(self):
+        return self.name
+
+    def get_absolute_url(self):
+        return reverse('network.vxlan', kwargs={'vni': self.vni})