support creating disks

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

uncloud/uncloud/urls.py

@@ -26,14 +26,27 @@ router = routers.DefaultRouter()
 
 # user / regular urls
 router.register(r'vm/snapshot', vmviews.VMSnapshotProductViewSet, basename='vmsnapshotproduct')
+router.register(r'vm/disk', vmviews.VMDiskProductViewSet, basename='vmdiskproduct')
 router.register(r'vm/image/mine', vmviews.VMDiskImageProductMineViewSet, basename='vmdiskimagemineproduct')
 router.register(r'vm/image/public', vmviews.VMDiskImageProductPublicViewSet, basename='vmdiskimagepublicproduct')
 
+# images the provider provides :-)
+# router.register(r'vm/image/official', vmviews.VMDiskImageProductPublicViewSet, basename='vmdiskimagepublicproduct')
+
+
 
-#router.register(r'vm/disk', vmviews.VMDiskProductViewSet, basename='vmdiskproduct')
 
 router.register(r'vm/vm', vmviews.VMProductViewSet, basename='vmproduct')
 
+# TBD
+#router.register(r'vm/disk', vmviews.VMDiskProductViewSet, basename='vmdiskproduct')
+
+# creates VM from os image
+#router.register(r'vm/ipv6onlyvm', vmviews.VMProductViewSet, basename='vmproduct')
+# ... AND adds IPv4 mapping
+#router.register(r'vm/dualstackvm', vmviews.VMProductViewSet, basename='vmproduct')
+
+# allow vm creation from own images
 
 
 # Pay

uncloud/uncloud_vm/models.py

@@ -4,6 +4,16 @@ import uuid
 
 from uncloud_pay.models import Product
 
+STATUS_CHOICES = (
+    ('pending', 'Pending'),   # Initial state
+    ('creating', 'Creating'), # Creating VM/image/etc.
+    ('active', 'Active'),     # Is usable / active
+    ('disabled', 'Disabled'), # Is usable, but cannot be used for new things
+    ('unusable', 'Unusable'), # Has some kind of error
+    ('deleted', 'Deleted'),   # Does not exist anymore, only DB entry as a log
+)
+
+STATUS_DEFAULT='pending'
 
 class VMHost(models.Model):
     uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
@@ -22,13 +32,8 @@ class VMHost(models.Model):
 
 
     status = models.CharField(max_length=32,
-                              choices = (
-                                  ('pending', 'Pending'),
-                                  ('active', 'Active'),
-                                  ('unusable', 'Unusable'),
-                                  ('deleted', 'Deleted'),
-                              ),
-                              default='pending'
+                              choices=STATUS_CHOICES,
+                              default=STATUS_DEFAULT
     )
 
 
@@ -80,13 +85,10 @@ class VMDiskImageProduct(models.Model):
                               default='ssd'
     )
 
-    # source = models.CharField(max_length=32,
-    #                           choices = (
-    #                               ('url', 'HDD'),
-    #                               ('ssd', 'SSD'),
-    #                           ),
-    #                           default='ssd'
-    # )
+    status = models.CharField(max_length=32,
+                              choices=STATUS_CHOICES,
+                              default=STATUS_DEFAULT
+    )
 
 class VMDiskProduct(models.Model):
     """
@@ -105,7 +107,7 @@ class VMDiskProduct(models.Model):
     vm   = models.ForeignKey(VMProduct, on_delete=models.CASCADE)
     image = models.ForeignKey(VMDiskImageProduct, on_delete=models.CASCADE)
 
-    size_in_gb = models.FloatField()
+    size_in_gb = models.FloatField(blank=True)
 
 
 class VMNetworkCard(models.Model):

uncloud/uncloud_vm/serializers.py

@@ -22,6 +22,8 @@ class VMProductSerializer(serializers.ModelSerializer):
         fields = '__all__'
 
 class VMDiskProductSerializer(serializers.ModelSerializer):
+#    vm = VMProductSerializer()
+
     class Meta:
         model = VMDiskProduct
         fields = '__all__'

uncloud/uncloud_vm/views.py

@@ -5,11 +5,13 @@ from django.shortcuts import get_object_or_404
 
 from rest_framework import viewsets, permissions
 from rest_framework.response import Response
+from rest_framework.exceptions import ValidationError
+
 
 from .models import VMHost, VMProduct, VMSnapshotProduct, VMDiskProduct, VMDiskImageProduct
 from uncloud_pay.models import Order
 
-from .serializers import VMHostSerializer, VMProductSerializer, VMSnapshotProductSerializer, VMDiskImageProductSerializer
+from .serializers import VMHostSerializer, VMProductSerializer, VMSnapshotProductSerializer, VMDiskImageProductSerializer, VMDiskProductSerializer
 
 
 import datetime
@@ -27,8 +29,14 @@ class VMDiskImageProductMineViewSet(viewsets.ModelViewSet):
         return VMDiskImageProduct.objects.filter(owner=self.request.user)
 
     def create(self, request):
-        serializer = VMProductSerializer(data=request.data, context={'request': request})
+        serializer = VMDiskImageProductSerializer(data=request.data, context={'request': request})
         serializer.is_valid(raise_exception=True)
+
+        # did not specify size NOR import url?
+        if not serializer.validated_data['size_in_gb']:
+            if not serializer.validated_data['import_url']:
+                raise ValidationError(detail={ 'error_mesage': 'Specify either import_url or size_in_gb' })
+
         serializer.save(owner=request.user)
         return Response(serializer.data)
 
@@ -40,6 +48,34 @@ class VMDiskImageProductPublicViewSet(viewsets.ReadOnlyModelViewSet):
     def get_queryset(self):
         return VMDiskImageProduct.objects.filter(is_public=True)
 
+class VMDiskProductViewSet(viewsets.ModelViewSet):
+    """
+    Let a user modify their own VMDisks
+    """
+    permission_classes = [permissions.IsAuthenticated]
+    serializer_class = VMDiskProductSerializer
+
+    def get_queryset(self):
+        return VMDiskProduct.objects.filter(owner=self.request.user)
+
+    def create(self, request):
+        serializer = VMDiskProductSerializer(data=request.data, context={'request': request})
+        serializer.is_valid(raise_exception=True)
+
+        # get disk size from image, if not specified
+        if not 'size_in_gb' in serializer.validated_data:
+            size_in_gb = serializer.validated_data['image'].size_in_gb
+        else:
+            size_in_gb = serializer.validated_data['size_in_gb']
+
+        if size_in_gb < serializer.validated_data['image'].size_in_gb:
+            raise ValidationError(detail={ 'error_mesage': 'Size is smaller than original image' })
+
+
+        serializer.save(owner=request.user, size_in_gb=size_in_gb)
+        return Response(serializer.data)
+
+
 
 class VMProductViewSet(viewsets.ModelViewSet):
     permission_classes = [permissions.IsAuthenticated]