update to work on different computer

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

uncloud_django_based/uncloud/doc/README-vpn.org

@@ -9,3 +9,17 @@
 ** Route a /40 network to its IPv6 address
 ** Install wireguard on it
 ** TODO Enable wireguard on boot
+** TODO Create a new VPNPool on uncloud with
+*** the network address (selecting from our existing pool)
+*** the network size (/...)
+*** the vpn host that provides the network (selecting the created VM)
+*** the wireguard private key of the vpn host (using wg genkey)
+*** http command
+```
+http -a nicoschottelius:$(pass
+  ungleich.ch/nico.schottelius@ungleich.ch)
+  http://localhost:8000/admin/vpnpool/ network=2a0a:e5c1:200:: \
+  network_size=40 subnetwork_size=48
+  vpn_hostname=vpn-2a0ae5c1200.ungleich.ch
+  wireguard_private_key=...
+```

uncloud_django_based/uncloud/uncloud_net/management/commands/vpn.py

@@ -0,0 +1,44 @@
+import sys
+from datetime import datetime
+
+from django.core.management.base import BaseCommand
+
+from django.contrib.auth import get_user_model
+
+from opennebula.models import VM as VMModel
+from uncloud_vm.models import VMHost, VMProduct, VMNetworkCard, VMDiskImageProduct, VMDiskProduct, VMCluster
+
+import logging
+log = logging.getLogger(__name__)
+
+
+wireguard_template="""
+
+[Interface]
+ListenPort = 51820
+PrivateKey = {privatekey}
+
+# Nico, 2019-01-23, Switzerland
+#[Peer]
+#PublicKey = kL1S/Ipq6NkFf1MAsNRou4b9VoUsnnb4ZxgiBrH0zA8=
+#AllowedIPs = 2a0a:e5c1:101::/48
+"""
+
+class Command(BaseCommand):
+    help = 'General uncloud commands'
+
+    def add_arguments(self, parser):
+        parser.add_argument('--hostname', action='store_true', help='Name of this VPN Host',
+                            required=True)
+
+    def handle(self, *args, **options):
+#        for net
+        if options['bootstrap']:
+            self.bootstrap()
+
+        self.create_vpn_config(options['hostname'])
+
+    def create_vpn_config(self, hostname):
+        for pool in VPNPool.objects.filter(vpn_hostname
+        default_cluster = VPNNetwork.objects.get_or_create(name="default")
+#        local_host =

uncloud_django_based/uncloud/uncloud_net/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.0.5 on 2020-04-03 17:27
+# Generated by Django 3.0.5 on 2020-04-06 21:38
 
 from django.conf import settings
 import django.contrib.postgres.fields.jsonb
@@ -28,22 +28,23 @@ class Migration(migrations.Migration):
             name='VPNPool',
             fields=[
                 ('extra_data', django.contrib.postgres.fields.jsonb.JSONField(blank=True, editable=False, null=True)),
-                ('network', models.GenericIPAddressField(editable=False, primary_key=True, serialize=False)),
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('network', models.GenericIPAddressField(unique=True)),
                 ('network_size', models.IntegerField(validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(128)])),
+                ('subnetwork_size', models.IntegerField(validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(128)])),
+                ('vpn_hostname', models.CharField(max_length=256)),
+                ('wireguard_private_key', models.CharField(max_length=48)),
             ],
             options={
                 'abstract': False,
             },
         ),
         migrations.CreateModel(
-            name='VPNProduct',
+            name='VPNNetworkReservation',
             fields=[
                 ('extra_data', django.contrib.postgres.fields.jsonb.JSONField(blank=True, editable=False, null=True)),
-                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('address', models.GenericIPAddressField(primary_key=True, serialize=False)),
-                ('status', models.CharField(choices=[('PENDING', 'Pending'), ('AWAITING_PAYMENT', 'Awaiting payment'), ('BEING_CREATED', 'Being created'), ('SCHEDULED', 'Scheduled'), ('ACTIVE', 'Active'), ('MODIFYING', 'Modifying'), ('DELETED', 'Deleted'), ('DISABLED', 'Disabled'), ('UNUSABLE', 'Unusable')], default='PENDING', max_length=32)),
+                ('vpnpool', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='uncloud_net.VPNPool')),
-                ('network', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='uncloud_net.VPNPool')),
-                ('order', models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_pay.Order')),
-                ('owner', models.ForeignKey(editable=False, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
             ],
             options={
                 'abstract': False,
@@ -53,8 +54,12 @@ class Migration(migrations.Migration):
             name='VPNNetwork',
             fields=[
                 ('extra_data', django.contrib.postgres.fields.jsonb.JSONField(blank=True, editable=False, null=True)),
-                ('network', models.GenericIPAddressField(editable=False, primary_key=True, serialize=False)),
+                ('uuid', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
-                ('vpnpool', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='uncloud_net.VPNPool')),
+                ('status', models.CharField(choices=[('PENDING', 'Pending'), ('AWAITING_PAYMENT', 'Awaiting payment'), ('BEING_CREATED', 'Being created'), ('SCHEDULED', 'Scheduled'), ('ACTIVE', 'Active'), ('MODIFYING', 'Modifying'), ('DELETED', 'Deleted'), ('DISABLED', 'Disabled'), ('UNUSABLE', 'Unusable')], default='PENDING', max_length=32)),
+                ('wireguard_public_key', models.CharField(max_length=48)),
+                ('network', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='uncloud_net.VPNNetworkReservation')),
+                ('order', models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_pay.Order')),
+                ('owner', models.ForeignKey(editable=False, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
             ],
             options={
                 'abstract': False,

uncloud_django_based/uncloud/uncloud_net/migrations/0002_auto_20200406_2021.py

@@ -1,70 +0,0 @@
-# Generated by Django 3.0.5 on 2020-04-06 20:21
-
-from django.conf import settings
-from django.db import migrations, models
-import django.db.models.deletion
-import uuid
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('uncloud_pay', '0001_initial'),
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ('uncloud_net', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name='vpnnetwork',
-            name='order',
-            field=models.ForeignKey(editable=False, null=True, on_delete=django.db.models.deletion.CASCADE, to='uncloud_pay.Order'),
-        ),
-        migrations.AddField(
-            model_name='vpnnetwork',
-            name='owner',
-            field=models.ForeignKey(default=0, editable=False, on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
-            preserve_default=False,
-        ),
-        migrations.AddField(
-            model_name='vpnnetwork',
-            name='status',
-            field=models.CharField(choices=[('PENDING', 'Pending'), ('AWAITING_PAYMENT', 'Awaiting payment'), ('BEING_CREATED', 'Being created'), ('SCHEDULED', 'Scheduled'), ('ACTIVE', 'Active'), ('MODIFYING', 'Modifying'), ('DELETED', 'Deleted'), ('DISABLED', 'Disabled'), ('UNUSABLE', 'Unusable')], default='PENDING', max_length=32),
-        ),
-        migrations.AlterField(
-            model_name='vpnnetwork',
-            name='network',
-            field=models.GenericIPAddressField(editable=False, unique=True),
-        ),
-        migrations.AddField(
-            model_name='vpnnetwork',
-            name='uuid',
-            field=models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False),
-        ),
-        migrations.AddField(
-            model_name='vpnnetwork',
-            name='wireguard_public_key',
-            field=models.CharField(default='', max_length=48),
-            preserve_default=False,
-        ),
-        migrations.AddField(
-            model_name='vpnpool',
-            name='vpn_hostname',
-            field=models.CharField(default='', max_length=256),
-            preserve_default=False,
-        ),
-        migrations.AddField(
-            model_name='vpnpool',
-            name='wireguard_private_key',
-            field=models.CharField(default='', max_length=48),
-            preserve_default=False,
-        ),
-        migrations.AlterField(
-            model_name='vpnpool',
-            name='network',
-            field=models.GenericIPAddressField(primary_key=True, serialize=False),
-        ),
-        migrations.DeleteModel(
-            name='VPNProduct',
-        ),
-    ]

uncloud_django_based/uncloud/uncloud_net/models.py

@@ -1,3 +1,5 @@
+import uuid
+
 from django.db import models
 from django.contrib.auth import get_user_model
 from django.core.validators import MinValueValidator, MaxValueValidator
@@ -15,24 +17,36 @@ class VPNPool(UncloudModel):
     Network address pools from which VPNs can be created
     """
 
-    network = models.GenericIPAddressField(primary_key=True)
+    uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
 
+    network = models.GenericIPAddressField(unique=True)
     network_size = models.IntegerField(validators=[MinValueValidator(0),
                                                    MaxValueValidator(128)])
 
+    subnetwork_size = models.IntegerField(validators=[MinValueValidator(0),
+                                                   MaxValueValidator(128)])
+
     vpn_hostname = models.CharField(max_length=256)
 
     wireguard_private_key = models.CharField(max_length=48)
 
 
-class VPNNetwork(Product):
+class VPNNetworkReservation(UncloudModel):
     """
-    A selected network. Used for tracking reservations / used networks
+    This class tracks the used VPN networks. It will be deleted, when the product is cancelled.
     """
     vpnpool = models.ForeignKey(VPNPool,
                                   on_delete=models.CASCADE)
 
-    network = models.GenericIPAddressField(editable=False,
+    address = models.GenericIPAddressField(primary_key=True)
-                                           unique=True)
+
+
+class VPNNetwork(Product):
+    """
+    A selected network. Used for tracking reservations / used networks
+    """
+    network = models.ForeignKey(VPNNetworkReservation,
+                                on_delete=models.CASCADE,
+                                editable=False)
 
     wireguard_public_key = models.CharField(max_length=48)

uncloud_django_based/uncloud/uncloud_net/serializers.py

@@ -1,4 +1,7 @@
+import base64
+
 from django.contrib.auth import get_user_model
+from django.utils.translation import gettext_lazy as _
 from rest_framework import serializers
 
 from .models import *
@@ -10,9 +13,48 @@ class VPNPoolSerializer(serializers.ModelSerializer):
 
 class VPNNetworkSerializer(serializers.ModelSerializer):
 
-    network_size = serializers.IntegerField(min_value=0,
-                                            max_value=128)
-
     class Meta:
         model = VPNNetwork
         fields = '__all__'
+
+    # This is required for finding the VPN pool, but does not
+    # exist in the model
+    network_size = serializers.IntegerField(min_value=0,
+                                            max_value=128)
+
+    def validate_wireguard_public_key(self, value):
+        msg = _("Supplied key is not a valid wireguard public key")
+
+        """ FIXME: verify that this does not create broken wireguard config files,
+        i.e. contains \n or similar!
+        We might even need to be more strict to not break wireguard...
+        """
+        print(value)
+
+        try:
+            base64.standard_b64decode(value)
+        except Exception as e:
+            raise serializers.ValidationError(msg)
+
+        if '\n' in value:
+            raise serializers.ValidationError(msg)
+
+        return value
+
+    def validate(self, data):
+
+        # FIXME: filter for status = active or similar
+        all_pools = VPNPool.objects.all()
+        sizes = [ p.subnetwork_size for p in all_pools ]
+
+        pools = VPNPool.objects.filter(subnetwork_size=data['network_size'])
+
+        if len(pools) == 0:
+            msg = _("No pool available for networks with size = {}. Available are: {}".format(data['network_size'], sizes))
+            raise serializers.ValidationError(msg)
+
+
+        return data
+
+    def create(self, validated_data):
+        from_pool =

uncloud_django_based/uncloud/uncloud_net/views.py

@@ -1,4 +1,6 @@
+
 from django.shortcuts import render
+
 from rest_framework import viewsets, permissions