we need only the basename instead of entire path.

slapos/libnetworkcache/__init__.py

@@ -110,7 +110,7 @@ class NetworkcacheClient(object):
 
       file_name = kw.get('file', None)
       if file_name is None:
-        kw['file'] = file_descriptor.name
+        kw['file'] = os.path.basename(file_descriptor.name)
 
       sha512 = kw.get('sha512', None)
       if sha512 is None: