Hoststack perf infrastructure refactoring

- DUT only topology (hoststack test
  apps are co-located with vpp)
- Make vpp app specific keywords generic
  where applicable
- Add IP4 Prefix to topology file
- Support running wrk in linux namespace
- Refactor namespace cleanup
- Remove redundant namespace creation code
- Refactor test/keyword dirs: tcp -> hoststack
- Add hoststack utility keywords
- Refactor wrk suite setup/teardown
- Update tests with recent perf infra changes

Change-Id: Ia1cf07978d579393eef94923819a87c8c1f36f34
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/resources/libraries/python/VPPUtil.py b/resources/libraries/python/VPPUtil.py
index 865775f995..ca63fa6cea 100644
--- a/resources/libraries/python/VPPUtil.py
+++ b/resources/libraries/python/VPPUtil.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Cisco and/or its affiliates.
+# Copyright (c) 2020 Cisco and/or its affiliates.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -113,8 +113,7 @@ class VPPUtil:
         :param node: Topology node.
         :type node: dict
         """
-        cmd = u"command -v vpp"
-        exec_cmd_no_error(node, cmd, message=u"VPP is not installed!")
+        DUTSetup.verify_program_installed(node, u"vpp")
 
     @staticmethod
     def adjust_privileges(node):
@@ -155,7 +154,7 @@ class VPPUtil:
         :type node: dict
         :raises RuntimeError: If VPP service fails to start.
         """
-        VPPUtil.verify_vpp_installed(node)
+        DUTSetup.verify_program_installed(node, 'vpp')
         try:
             # Verify responsiveness of vppctl.
             VPPUtil.verify_vpp_started(node)