Merge into master

common_fields.py

@@ -1,5 +1,5 @@
-from etcd3_wrapper import Etcd3Wrapper
 from specs_parser import SpecsParser
+from config import etcd_client as client
 
 specs_parser = SpecsParser(exceptional_devices=["cpu"])
 
@@ -43,8 +43,6 @@ class VmUUIDField(Field):
         self.validation = self.vm_uuid_validation
 
     def vm_uuid_validation(self):
-        client = Etcd3Wrapper()
-
         r = client.get(f"/v1/vm/{self.uuid}")
         if not r:
             self.add_error(f"VM with uuid {self.uuid} does not exists")