occi: delete storagelink

remove disk from instance, but don't destroy it

circle/occi/occi.py

@@ -505,6 +505,13 @@ class StorageLink(Link):
             'attrs': self.attrs,
         })
 
+    def delete(self):
+        # TODO
+        user = User.objects.get(username="test")
+
+        if self.disk in self.instance.disks.all():
+            self.instance.detach_disk(user=user, disk=self.disk)
+
 
 """predefined stuffs
 

circle/occi/urls.py

@@ -33,6 +33,6 @@ urlpatterns = patterns(
     url(r'^disk/(?P<pk>\d+)/$', DiskInterface.as_view(), name="occi.disk"),
 
     url(r'^link/storagelink/$', StorageLinkInterface.as_view()),
-    url(r'^link/storagelink/vm(?P<vm_pk>\d+)_disk(?P<disk_pk>\d+)/$',
+    url(r'^link/storagelink/vm(?P<vm_pk>\d+)_disk(?P<disk_pk>\d+)/?$',
         StorageLinkInterface.as_view(), name="occi.storagelink"),
 )

circle/occi/views.py

@@ -201,15 +201,16 @@ class DiskInterface(DetailView):
 class StorageLinkInterface(View):
 
     def get_vm_and_disk(self):
-        try:
-            vm = Instance.objects.filter(destroyed=None
-                                         ).get(pk=self.kwargs['vm_pk'])
-            disk = Disk.objects.filter(destroyed=None
-                                       ).get(pk=self.kwargs['disk_pk'])
-            return vm, disk
-        except (Instance.DoesNotExist, Disk.DoesNotExist):
+        vm = get_object_or_404(Instance.objects.filter(destroyed_at=None),
+                               pk=self.kwargs['vm_pk'])
+        disk = get_object_or_404(Disk.objects.filter(destroyed=None),
+                                 pk=self.kwargs['disk_pk'])
+
+        if disk not in vm.disks.all():
             raise Http404
 
+        return vm, disk
+
     def get(self, request, *args, **kwargs):
         vm, disk = self.get_vm_and_disk()
         sl = StorageLink(instance=vm, disk=disk)
@@ -236,6 +237,13 @@ class StorageLinkInterface(View):
         else:
             return HttpResponse("VM or Storage does not exist.", status=500)
 
+    def delete(self, request, *args, **kwargs):
+        vm, disk = self.get_vm_and_disk()
+        sl = StorageLink(instance=vm, disk=disk)
+
+        sl.delete()
+        return HttpResponse("")
+
     @method_decorator(csrf_exempt)
     def dispatch(self, *args, **kwargs):
         return super(StorageLinkInterface, self).dispatch(*args, **kwargs)

circle/vm/models/instance.py

@@ -817,7 +817,8 @@ class Instance(AclBase, VirtualMachineDescModel, StatusModel, OperatedMixin,
         return acts
 
     def get_merged_activities(self, user=None):
-        whitelist = ("create_disk", "download_disk", "attach_disk")
+        whitelist = ("create_disk", "download_disk", "attach_disk",
+                     "detach_disk", )
         acts = self.get_activities(user)
         merged_acts = []
         latest = None

circle/vm/operations.py

@@ -1326,3 +1326,21 @@ class AttachDiskOperation(InstanceOperation):
         return create_readable(
             ugettext_noop("attach disk %(name)s"),
             name=kwargs['disk'].name)
+
+
+@register_operation
+class DetachDiskOperation(InstanceOperation):
+    id = 'detach_disk'
+    name = _("detach disk")
+    description = _("Detach the specified disk from the virtual machine.")
+    required_perms = ()
+    accept_states = ('STOPPED', 'PENDING', 'RUNNING')
+
+    def _operation(self, activity, user, disk):
+        if self.instance.is_running and disk.type not in ["iso"]:
+            self.instance._detach_disk(disk=disk, parent_activity=activity)
+        return self.instance.disks.remove(disk)
+
+    def get_activity_name(self, kwargs):
+        return create_readable(ugettext_noop('deatch disk %(name)s'),
+                               name=kwargs["disk"].name)