upgrades

implementation/storage/OpenstackStorageManager.py

-import Volume
-import openstack
 import StorageManager
+from openstack.exceptions import ResourceNotFound
+
+from interface.storage.Volume import Volume
 
 
 class OpenstackStorageManager(StorageManager.StorageManager):
 
-    def __init__(self, cloud) -> None:
+    def __init__(self, openstack) -> None:
         super().__init__()
-        self.openstack = openstack.connect(cloud=cloud)
+
+        self.openstack = openstack
 
     @staticmethod
     def os_volume_to_rc_volume(os_volume):
-        return Volume.Volume(
+        return Volume(
             os_volume.id,
             os_volume.size,
-            os_volume.is_bootable
+            os_volume.is_bootable,
+            os_volume.status,
+            os_volume.created_at
         )
 
     def create(self, size, bootable):
-        os_volume = self.openstack.block_storage.create_volume(size=size, bootable=bootable)
+        os_volume = self.openstack.block_storage.create_volume(
+            size=size,
+            bootable=bootable
+        )
+
+        return self.os_volume_to_rc_volume(os_volume)
+
+    def create_from_snapshot(self, id):
+        os_volume = self.openstack.block_storage.create_volume(snapshot_id=id)
 
         return self.os_volume_to_rc_volume(os_volume)
 
     def get(self, id):
+        try:
             os_volume = self.openstack.block_storage.get_volume(id)
+        except ResourceNotFound:
+            return None
 
         return self.os_volume_to_rc_volume(os_volume)
 
     def delete(self, id):
-        print(self.openstack.block_storage.delete_volume(id))
+        try:
+            self.openstack.block_storage.delete_volume(id)
+        except ResourceNotFound:
+            return False
+
+        return True
 
     def list(self):
         volumes = []