BUG/MEDIUM: reload the configuration after a failed synced configuration if servers are created

Fix the scenario where we have a failure when we sync the configuration and we scale a deployment before fixing the issue.
In this scenario we were writing the configuration correctly with the new servers but not reloading.
The runtime still had missing servers, it was capped to the server slots number of servers.

Author: hdurand0710

pkg/service/endpoints.go

@@ -87,6 +87,12 @@ func (s *Service) updateHAProxySrv(client api.HAProxyClient, srvSlot store.HAPro
 		errAPI = client.BackendServerCreate(s.backend.Name, srv)
 		if errAPI != nil {
 			logger.Errorf("[CONFIG] [BACKEND] [SERVER] %v", errAPI)
+		} else {
+			// Server has been created, a reload is required
+			// It covers the case where there was a failure, scaleHAProxySrvs has already been called in a previous loop
+			// but the sync failed (wrong config)
+			// When the config is fixed, servers will be created
+			instance.Reload("server '%s' created in backend '%s'", srv.Name, s.backend.Name)
 		}
 	} else {
 		logger.Errorf("[CONFIG] [BACKEND] [SERVER] %v", errAPI)