Stop keepalived after the test

Stopping keepalived on all nodes prevents it from interfering with tests
run after it.

maxscale-system-test/keepalived.cpp

@@ -96,6 +96,7 @@ int main(int argc, char* argv[])
         Test->add_result(false, "Failover did not happen");
     }
 
+    stop_keepalived(Test);
     int rval = Test->global_result;
     delete Test;
     return rval;

maxscale-system-test/keepalived_func.cpp

@@ -65,3 +65,11 @@ void configure_keepalived(TestConnections* Test, char* keepalived_file)
         Test->maxscales->ssh_node(i, "sudo service keepalived restart", true);
     }
 }
+
+void stop_keepalived(TestConnections* Test)
+{
+    for (i = 0; i < Test->maxscales->N; i++)
+    {
+        Test->maxscales->ssh_node(i, "sudo service keepalived stop", true);
+    }
+}

maxscale-system-test/keepalived_func.h

@@ -8,5 +8,6 @@
 char virtual_ip[16];
 char* print_version_string(TestConnections* Test);
 void  configure_keepalived(TestConnections* Test, char* keepalived_file);
+void stop_keepalived(TestConnections* Test);
 
 #endif      // KEEPALIVED_FUNC_H

maxscale-system-test/keepalived_masterdown.cpp

@@ -182,6 +182,7 @@ int main(int argc, char* argv[])
 //    Test->repl->require_gtid(false);
 //    Test->repl->start_replication();
 
+    stop_keepalived(Test);
     int rval = Test->global_result;
     delete Test;
     return rval;