Add a configurable wat period for shared resource

It would be beneficial to drop this lower for tests.

Author: JacobCallahan

conf/robottelo.yaml.template

@@ -31,3 +31,4 @@ ROBOTTELO:
     IGNORE_VALIDATION_ERRORS: false
   # Stage docs url
   STAGE_DOCS_URL: https://docs.redhat.com
+  SHARED_RESOURCE_WAIT: 2

robottelo/config/validators.py

@@ -330,6 +330,7 @@
             default=[],
             cast=lambda x: list(map(str, x)),
         ),
+        Validator('robottelo.shared_resource_wait', default=60, cast=float),
     ],
     shared_function=[
         Validator('shared_function.storage', is_in=('file', 'redis'), default='file'),

robottelo/utils/shared_resource.py

@@ -29,6 +29,8 @@
 
 from broker.helpers import FileLock
 
+from robottelo.config import settings
+
 
 class SharedResourceError(Exception):
     """An exception class for SharedResource errors."""
@@ -120,7 +122,7 @@ def _wait_for_main_watcher(self):
         while True:
             curr_data = json.loads(self.resource_file.read_text())
             if curr_data["main_status"] != "done":
-                time.sleep(60)
+                time.sleep(settings.robottelo.shared_resource_wait)
             elif curr_data["main_status"] == "action_error":
                 self._try_take_over()
             elif curr_data["main_status"] == "error":