Add retries while checking for contrail-status

Change-Id: Ibf9e6ff3155bc0d9c12c0915ae24d1ed72d00776
Closes-Bug: 1735880
(cherry picked from commit 6d8c38e)

common/contrail_test_init.py

@@ -17,7 +17,7 @@
 from fabric.contrib.files import exists
 
 from tcutils.util import *
-from tcutils.util import custom_dict, read_config_option, get_build_sku
+from tcutils.util import custom_dict, read_config_option, get_build_sku, retry
 from tcutils.custom_filehandler import *
 from tcutils.config.vnc_introspect_utils import VNCApiInspect
 from tcutils.collector.opserver_introspect_utils import VerificationOpsSrv
@@ -1197,6 +1197,7 @@ def get_service_status(self, m, service):
                 return cls
         return None
 
+    @retry(tries=6, delay=5)
     def verify_service_state(self, host, service=None, role=None, container=None):
         result = True
         failed_services = []
@@ -1218,7 +1219,7 @@ def verify_service_state(self, host, service=None, role=None, container=None):
             self.logger.error("Unable to get service status of %s on %s"
                               %(service, host))
             self.logger.exception("Got exception as %s" % (e))
-            return False
+            return False, failed_services
         return result, failed_services
 
     # Commenting below 4 lines due to discovery changes in R4.0 - Bug 1658035