Add export disk operation to disk model

circle/storage/models.py

@@ -469,6 +469,12 @@ class Disk(TimeStampedModel):
         disk.save()
         return disk
 
+    def export(self, format):
+        queue_name = self.get_remote_queue_name('storage', priority='slow')
+        storage_tasks.export.apply_async(
+            args=[self.get_disk_desc(), format],
+            queue=queue_name)
+
     def destroy(self, user=None, task_uuid=None):
         if self.destroyed:
             return False

circle/storage/tasks/storage_tasks.py

@@ -38,6 +38,11 @@ def download(disk_desc, url):
     pass
 
 
+@celery.task(name='storagedriver.export')
+def export(disk_desc, format):
+    pass
+
+
 @celery.task(name='storagedriver.delete')
 def delete(path):
     pass

circle/vm/operations.py

@@ -352,6 +352,19 @@ class DownloadDiskOperation(InstanceOperation):
 
 
 @register_operation
+class ExportDiskOperation(InstanceOperation):
+    id = 'export_disk'
+    name = _('export disk')
+    description = _('Export disk to VMDK format.')
+    abortable = True
+    required_perms = ('storage.export_disk',)
+    accept_states = ('STOPPED',)
+
+    def _operation(self, disk, format='vmdk'):
+        disk.export(format)
+
+
+@register_operation
 class ImportDiskOperation(InstanceOperation):
 
     id = 'import_disk'
@@ -363,20 +376,8 @@ class ImportDiskOperation(InstanceOperation):
     accept_states = ('STOPPED', 'PENDING', 'RUNNING')
     async_queue = 'localhost.man.slow'
 
-    def _operation(self, **kwargs):
-        from storage.models import Disk
-
-
-@register_operation
-class ExportDiskOperation(InstanceOperation):
-    id = 'export_disk'
-    name = _('export disk')
-    description = _('Export disk to VMDK format.')
-    required_perms = ('storage.export_disk',)
-    accept_states = ('STOPPED', 'PENDING', 'RUNNING')
-
-    def _operation(self, **kwargs):
-        from storage.models import Disk
+    def _operation(self, activity):
+        pass
 
 
 @register_operation